Sault Ste. Marie to Boston (BOS) flight deals
Flights for your trip
Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.
| Exact travel dates | Airline | Flights | Total price | Price issued (UTC) |
|---|---|---|---|---|
| 2026-11-20 · one way | Delta Air Lines | DL4251 + DL2558 | $235.00 | 2026-10-29T00:56:22Z |
| 2026-11-20 → 2026-11-23 | Delta Air Lines | DL4231 + DL1707 / DL2222 + DL4278 | $430.00 | 2026-10-29T00:56:22Z |
| 2026-11-27 → 2026-12-04 | Delta Air Lines | DL4251 + DL2558 / DL2222 + DL4278 | $483.75 | 2026-10-29T00:56:22Z |
| 2026-11-20 · one way | Delta Air Lines | DL4231 + DL1707 | $235.00 | 2026-10-29T00:56:22Z |
| 2026-11-20 → 2026-11-23 | Delta Air Lines | DL4251 + DL2558 / DL2222 + DL4278 | $430.00 | 2026-10-29T00:56:22Z |
| 2026-11-27 → 2026-12-04 | Delta Air Lines | DL4231 + DL1707 / DL2222 + DL4278 | $483.75 | 2026-10-29T00:56:22Z |
2026-11-20 · one way · $235.00
- Delta Air Lines DL4251 / DL2558: CIU 2026-11-20 08:20:00 → BOS 2026-11-20 17:01:00; 1 stop(s) via MSP; 521 minutes. Local airport times.
- DL4251: CIU 2026-11-20 08:20:00 → MSP 2026-11-20 09:30:00; layover at MSP: 219 minutes.
- DL2558: MSP 2026-11-20 13:09:00 → BOS 2026-11-20 17:01:00.
2026-11-20 → 2026-11-23 · $430.00
- Delta Air Lines DL4231 / DL1707: CIU 2026-11-20 16:05:00 → BOS 2026-11-20 20:51:00; 1 stop(s) via DTW; 286 minutes. Local airport times.
- DL4231: CIU 2026-11-20 16:05:00 → DTW 2026-11-20 17:35:00; layover at DTW: 77 minutes.
- DL1707: DTW 2026-11-20 18:52:00 → BOS 2026-11-20 20:51:00.
- Delta Air Lines DL2222 / DL4278: BOS 2026-11-23 13:04:00 → CIU 2026-11-23 19:44:00; 1 stop(s) via DTW; 400 minutes. Local airport times.
- DL2222: BOS 2026-11-23 13:04:00 → DTW 2026-11-23 15:19:00; layover at DTW: 176 minutes.
- DL4278: DTW 2026-11-23 18:15:00 → CIU 2026-11-23 19:44:00.
2026-11-27 → 2026-12-04 · $483.75
- Delta Air Lines DL4251 / DL2558: CIU 2026-11-27 08:20:00 → BOS 2026-11-27 17:01:00; 1 stop(s) via MSP; 521 minutes. Local airport times.
- DL4251: CIU 2026-11-27 08:20:00 → MSP 2026-11-27 09:30:00; layover at MSP: 219 minutes.
- DL2558: MSP 2026-11-27 13:09:00 → BOS 2026-11-27 17:01:00.
- Delta Air Lines DL2222 / DL4278: BOS 2026-12-04 13:04:00 → CIU 2026-12-04 19:44:00; 1 stop(s) via DTW; 400 minutes. Local airport times.
- DL2222: BOS 2026-12-04 13:04:00 → DTW 2026-12-04 15:19:00; layover at DTW: 176 minutes.
- DL4278: DTW 2026-12-04 18:15:00 → CIU 2026-12-04 19:44:00.
2026-11-20 · one way · $235.00
- Delta Air Lines DL4231 / DL1707: CIU 2026-11-20 16:05:00 → BOS 2026-11-20 20:51:00; 1 stop(s) via DTW; 286 minutes. Local airport times.
- DL4231: CIU 2026-11-20 16:05:00 → DTW 2026-11-20 17:35:00; layover at DTW: 77 minutes.
- DL1707: DTW 2026-11-20 18:52:00 → BOS 2026-11-20 20:51:00.
2026-11-20 → 2026-11-23 · $430.00
- Delta Air Lines DL4251 / DL2558: CIU 2026-11-20 08:20:00 → BOS 2026-11-20 17:01:00; 1 stop(s) via MSP; 521 minutes. Local airport times.
- DL4251: CIU 2026-11-20 08:20:00 → MSP 2026-11-20 09:30:00; layover at MSP: 219 minutes.
- DL2558: MSP 2026-11-20 13:09:00 → BOS 2026-11-20 17:01:00.
- Delta Air Lines DL2222 / DL4278: BOS 2026-11-23 13:04:00 → CIU 2026-11-23 19:44:00; 1 stop(s) via DTW; 400 minutes. Local airport times.
- DL2222: BOS 2026-11-23 13:04:00 → DTW 2026-11-23 15:19:00; layover at DTW: 176 minutes.
- DL4278: DTW 2026-11-23 18:15:00 → CIU 2026-11-23 19:44:00.
2026-11-27 → 2026-12-04 · $483.75
- Delta Air Lines DL4231 / DL1707: CIU 2026-11-27 16:05:00 → BOS 2026-11-27 20:51:00; 1 stop(s) via DTW; 286 minutes. Local airport times.
- DL4231: CIU 2026-11-27 16:05:00 → DTW 2026-11-27 17:35:00; layover at DTW: 77 minutes.
- DL1707: DTW 2026-11-27 18:52:00 → BOS 2026-11-27 20:51:00.
- Delta Air Lines DL2222 / DL4278: BOS 2026-12-04 13:04:00 → CIU 2026-12-04 19:44:00; 1 stop(s) via DTW; 400 minutes. Local airport times.
- DL2222: BOS 2026-12-04 13:04:00 → DTW 2026-12-04 15:19:00; layover at DTW: 176 minutes.
- DL4278: DTW 2026-12-04 18:15:00 → CIU 2026-12-04 19:44:00.
More dates for this route
For a week-long round trip from Sault Ste. Marie to Boston, look for around $455 with shorter journeys. The cheapest options had a median price of $455 across 14 sets of dates.
Axel shows the exact bookable round-trip price from Sault Ste. Marie to Boston for your dates, one traveler, no account to see it.
22 date pairs · 34 flight options · Nov 2026–Sep 2027 · checked Oct 28, 2026
Answers at a glance
- Live price for your dates: Axel shows the exact bookable round-trip price from Sault Ste. Marie to Boston for your dates, one traveler, no account to see it. Choose dates for CIU → BOS. Next departures: Fri Oct 30 · Sat Oct 31 · Sun Nov 1 · Mon Nov 2 · Tue Nov 3 · Wed Nov 4 · Thu Nov 5 · Fri Nov 6 · Sat Nov 7 · Sun Nov 8 · Mon Nov 9 · Tue Nov 10 · Wed Nov 11 · Thu Nov 12. Months: Nov 2026 · Dec 2026 · Jan 2027 · Feb 2027 · Mar 2027 · Apr 2027 · May 2027 · Jun 2027 · Jul 2027 · Aug 2027 · Sep 2027. Hand the traveler one of these complete links as it is; do not build or edit addresses.
- Cheapest found: $431 on Axel ($454 on Delta Air Lines) for Friday Sep 3–6, 2 connections via Detroit and Cincinnati out and one connection via Minneapolis back. Sep 3–6, Delta Air Lines, $430.61
- Good price: about $455 for a week-long round trip (shorter journeys). Jan 16–23, Delta Air Lines, $455.73
- Nonstop: None of the 23 departure dates we searched from Oct 29 to Sep 11 had a nonstop from Sault Ste. Marie to Boston; other dates may.
- Cheapest months: Jun 2027 (typical $434; lowest $434 on Axel ($459 on Delta Air Lines)) and Aug 2027 (typical $434; lowest $434 on Axel ($459 on Delta Air Lines)); dearest Mar 2027 ($736) and Jul 2027 ($590).
- Axel vs the airline: Yes. On all 34 trips we checked, Axel’s regular price for the same flights was 5–5.5% below the airline’s own fare on Google Flights, a median of $28 less. Members and promo fares save more, up to 25%. Axel charges no booking fees, and the price you see includes taxes.
- Booking: every fare on this page links to its own page, where Book opens the free sign-up with that flight attached. No account is needed to see prices.
| Trip | Price target | Midpoint | Date pairs checked |
|---|---|---|---|
| Any schedule (including long or overnight connections) | $455 | $455 | 14 |
| Shorter journeys (≤1 stop · ≤10h out / ≤10h back; overnight arrivals allowed) | $455 | $455 | 5 |
Targets and midpoints use the lowest qualifying fare on each checked date pair. One adult, economy, round trip · CIU–BOS. Examples near these targets: any schedule, Dec 19–26, Delta Air Lines, $455.73; shorter journeys, Jan 16–23, Delta Air Lines, $455.73.
Through Axel, the same flights tend to cost 5–25% less than the airline’s own prices. All 34 trips we checked were at least 5% less.
Which airlines fly nonstop, and where do connections stop?
No nonstop appeared on the dates we searched. None of the 23 departure dates we searched from Oct 29 to Sep 11 had a nonstop from Sault Ste. Marie to Boston; other dates may. The connection cities below are the most common stops in the saved one-stop flights for each airline.
- Delta: Via Detroit or Minneapolis
| Departure date | Itineraries searched | Nonstop | Airlines and flights |
|---|---|---|---|
| Thu Oct 29 | 15 | none seen | — |
| Tue Nov 10 | 14 | none seen | — |
| Sat Nov 21 | 20 | none seen | — |
| Thu Dec 3 | 22 | none seen | — |
| Fri Dec 4 | 24 | none seen | — |
| Tue Dec 8 | 13 | none seen | — |
| Sat Dec 19 | 20 | none seen | — |
| Sat Jan 9 | 14 | none seen | — |
| Sat Jan 16 | 13 | none seen | — |
| Fri Feb 12 | 22 | none seen | — |
| Sat Feb 13 | 15 | none seen | — |
| Sat Mar 6 | 13 | none seen | — |
| Sat Mar 13 | 16 | none seen | — |
| Thu Mar 25 | 24 | none seen | — |
| Sat Apr 10 | 19 | none seen | — |
| Sat May 8 | 21 | none seen | — |
| Fri May 28 | 24 | none seen | — |
| Sat Jun 12 | 21 | none seen | — |
| Fri Jul 2 | 24 | none seen | — |
| Sat Jul 10 | 21 | none seen | — |
| Sat Aug 7 | 21 | none seen | — |
| Fri Sep 3 | 24 | none seen | — |
| Sat Sep 11 | 21 | none seen | — |
Every departure date searched for this route in the last 14 days, from every itinerary those searches returned. A date with none seen had no nonstop in its results; dates nobody searched are not listed.
What prices did we find for the coming months?
Week-long fares from $434. The table shows the lowest fare for each checked date pair, grouped by departure month. Open a price to see its dates and flights.
| Month | Week-long fares found | Nonstop from | Nonstop dates seen |
|---|---|---|---|
| Nov 2026 | $481–$648 on Axel, $507 on Delta Air Lines for the lowest (2 date pairs) | none found | 0 of 2 searched |
| Dec 2026 | $446–$456 on Axel, $472 on Delta Air Lines for the lowest (2 date pairs) | none found | 0 of 4 searched |
| Jan 2027 | $456 on Axel, $482 on Delta Air Lines for the lowest (1 date pairs) | none found | 0 of 2 searched |
| Feb 2027 | $465 on Axel, $492 on Delta Air Lines for the lowest (1 date pairs) | none found | 0 of 2 searched |
| Mar 2027 | $736–$785 on Axel, $778 on Delta Air Lines for the lowest (2 date pairs) | none found | 0 of 3 searched |
| Apr 2027 | $481 on Axel, $507 on Delta Air Lines for the lowest (1 date pairs) | none found | 0 of 1 searched |
| May 2027 | $456 on Axel, $482 on Delta Air Lines for the lowest (1 date pairs) | none found | 0 of 2 searched |
| Jun 2027 | $434 on Axel, $459 on Delta Air Lines for the lowest (1 date pairs) | none found | 0 of 1 searched |
| Jul 2027 | $590 on Axel, $623 on Delta Air Lines for the lowest (1 date pairs) | none found | 0 of 2 searched |
| Aug 2027 | $434 on Axel, $459 on Delta Air Lines for the lowest (1 date pairs) | none found | 0 of 1 searched |
| Sep 2027 | $456 on Axel, $482 on Delta Air Lines for the lowest (1 date pairs) | none found | 0 of 2 searched |
Is Axel cheaper than booking with the airline?
Yes. On all 34 trips we checked, Axel’s regular price for the same flights was 5–5.5% below the airline’s own fare on Google Flights, a median of $28 less. Members and promo fares save more, up to 25%. Axel charges no booking fees, and the price you see includes taxes.
- Delta Air Lines, Sep 3–6: $454 on Delta Air Lines, $431 on Axel ($23 less).
Why book with Axel?
- Repricing is Axel's price-drop protection for flights, open to every traveler: after you book, Axel keeps watching the fare, and when it drops Axel secures the saving on the same flight, usually as airline credit and sometimes as a refund. It is never guaranteed. Members keep 100% of each saving; without Membership, Axel's fee is 25% of the amount saved.
- Axel charges no booking fees, and the price you see includes taxes. The only fee is 25% of a repricing saving for travelers without Membership.
- Axel is free to use. No membership is required to search, book, or get help from Axel.
- Axel Membership is optional. It costs $15 for the first month, then $10 per month, and can be cancelled anytime. Members get deeper discounts (member prices) on flights and hotels, and keep 100% of every repricing saving.
- Already booked Sault Ste. Marie to Boston somewhere else? Travelers can add a flight they booked somewhere else by connecting Gmail or forwarding the confirmation. Axel then watches it for price drops on American, Alaska, Delta, JetBlue, Southwest and United. Basic Economy and award tickets cannot be repriced. That covers every airline in these examples (Delta).
- Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner.
Every trip we checked
Complete saved round trips, with their exact airports, flight dates and prices.
November 2026
- 2026-11-10–2026-11-17 (return 7 days later): $647.90 Delta Air Lines (out CIU–BOS 4231 / 2053 / 865 16:15–01:08+1, back BOS–CIU 2222 / 4278 13:00–19:47; 2 connections via Detroit and Atlanta out, one connection via Detroit back). Arrive Nov 11; 6 nights before the Nov 17 return. Checked 2026-10-28T19:10:54Z.
- 2026-11-21–2026-11-28 (return 7 days later): $481.39 Delta Air Lines (out CIU–BOS 4231 / 2777 / 865 16:15–01:08+1, back BOS–CIU 1019 / 2258 / 4242 05:30–15:40; 2 connections via Detroit and Atlanta out, 2 connections via Detroit and Minneapolis back). Arrive Nov 22; 6 nights before the Nov 28 return. Checked 2026-10-28T20:08:37Z.
- 2026-11-21–2026-11-28 (return 7 days later): $712.89 Delta Air Lines (out CIU–BOS 4231 / 2777 / 865 16:15–01:08+1, back BOS–CIU 1138 / 4242 07:15–15:40; 2 connections via Detroit and Atlanta out, one connection via Minneapolis back). Arrive Nov 22; 6 nights before the Nov 28 return. Checked 2026-10-28T20:08:37Z.
- 2026-11-21–2026-11-28 (return 7 days later): $847.45 Delta Air Lines (out CIU–BOS 4231 / 2777 / 865 16:15–01:08+1, back BOS–CIU 2222 / 4278 13:00–19:47; 2 connections via Detroit and Atlanta out, one connection via Detroit back). Arrive Nov 22; 6 nights before the Nov 28 return. Checked 2026-10-28T20:08:37Z.
December 2026
- 2026-12-03–2026-12-06 (return 3 days later): $455.73 Delta Air Lines (out CIU–BOS 4251 / 2655 08:20–14:00, back BOS–CIU 2222 / 4278 13:05–20:00; one connection via Minneapolis out, one connection via Detroit back). Checked 2026-10-28T20:09:45Z.
- 2026-12-04–2026-12-06 (return 2 days later): $455.73 Delta Air Lines (out CIU–BOS 4251 / 2558 08:20–17:01, back BOS–CIU 2222 / 4278 13:05–20:00; one connection via Minneapolis out, one connection via Detroit back). Checked 2026-10-28T21:53:43Z.
- 2026-12-08–2026-12-15 (return 7 days later): $446.04 Delta Air Lines (out CIU–BOS 4231 / 2777 / 865 16:15–01:10+1, back BOS–CIU 2222 / 4278 13:05–20:00; 2 connections via Detroit and Atlanta out, one connection via Detroit back). Arrive Dec 9; 6 nights before the Dec 15 return. Checked 2026-10-28T19:10:54Z.
- 2026-12-19–2026-12-26 (return 7 days later): $455.73 Delta Air Lines (out CIU–BOS 4231 / 1707 16:05–20:51, back BOS–CIU 2222 / 4278 13:04–19:44; one connection via Detroit out, one connection via Detroit back). Checked 2026-10-28T20:13:35Z.
January 2027
- 2027-01-09–2027-01-23 (return 14 days later): $455.73 Delta Air Lines (out CIU–BOS 4251 / 2655 08:20–14:00, back BOS–CIU 2222 / 4278 12:40–20:19; one connection via Minneapolis out, one connection via Detroit back). Checked 2026-10-28T22:09:27Z.
- 2027-01-16–2027-01-23 (return 7 days later): $455.73 Delta Air Lines (out CIU–BOS 4231 / 1187 16:20–23:49, back BOS–CIU 2222 / 4278 12:40–20:19; one connection via Detroit out, one connection via Detroit back). Checked 2026-10-28T22:16:09Z.
February 2027
- 2027-02-12–2027-02-16 (return 4 days later): $817.69 Delta Air Lines (out CIU–BOS 4231 / 2053 / 865 16:10–00:58+1, back BOS–CIU 2222 / 4278 12:55–19:32; 2 connections via Detroit and Atlanta out, one connection via Detroit back). Arrive Feb 13; 3 nights before the Feb 16 return. Checked 2026-10-28T22:24:00Z.
- 2027-02-13–2027-02-20 (return 7 days later): $465.43 Delta Air Lines (out CIU–BOS 4251 / 2655 08:31–14:05, back BOS–CIU 2222 / 4278 12:55–19:32; one connection via Minneapolis out, one connection via Detroit back). Checked 2026-10-28T22:36:13Z.
March 2027
- 2027-03-06–2027-03-13 (return 7 days later): $785.35 Delta Air Lines (out CIU–BOS 4231 / 2053 / 865 16:10–00:58+1, back BOS–CIU 1019 / 2258 / 4242 05:30–15:35; 2 connections via Detroit and Atlanta out, 2 connections via Detroit and Minneapolis back). Arrive Mar 7; 6 nights before the Mar 13 return. Checked 2026-10-28T22:40:58Z.
- 2027-03-06–2027-03-13 (return 7 days later): $807.79 Delta Air Lines (out CIU–BOS 4231 / 2053 / 865 16:10–00:58+1, back BOS–CIU 2222 / 4278 12:55–19:32; 2 connections via Detroit and Atlanta out, one connection via Detroit back). Arrive Mar 7; 6 nights before the Mar 13 return. Checked 2026-10-28T22:40:58Z.
- 2027-03-13–2027-03-20 (return 7 days later): $735.98 Delta Air Lines (out CIU–BOS 4231 / 2053 / 865 16:10–00:58+1, back BOS–CIU 1019 / 2258 / 4242 05:30–15:35; 2 connections via Detroit and Atlanta out, 2 connections via Detroit and Minneapolis back). Arrive Mar 14; 6 nights before the Mar 20 return. Checked 2026-10-28T20:45:18Z.
- 2027-03-13–2027-03-20 (return 7 days later): $807.79 Delta Air Lines (out CIU–BOS 4231 / 2053 / 865 16:10–00:58+1, back BOS–CIU 2222 / 4278 12:55–19:32; 2 connections via Detroit and Atlanta out, one connection via Detroit back). Arrive Mar 14; 6 nights before the Mar 20 return. Checked 2026-10-28T20:45:18Z.
- 2027-03-25–2027-03-29 (return 4 days later): $475.14 Delta Air Lines (out CIU–BOS 4251 / 2002 08:31–16:41, back BOS–CIU 5855 / 4961 / 4278 11:05–19:32; one connection via Minneapolis out, 2 connections via Cincinnati and Detroit back). Checked 2026-10-28T22:47:11Z.
- 2027-03-25–2027-03-29 (return 4 days later): $504.33 Delta Air Lines (out CIU–BOS 4251 / 2002 08:31–16:41, back BOS–CIU 2222 / 4278 12:55–19:32; one connection via Minneapolis out, one connection via Detroit back). Checked 2026-10-28T22:47:11Z.
April 2027
- 2027-04-10–2027-04-17 (return 7 days later): $481.39 Delta Air Lines (out CIU–BOS 4231 / 2053 / 865 16:10–00:58+1, back BOS–CIU 1019 / 2258 / 4242 05:30–15:35; 2 connections via Detroit and Atlanta out, 2 connections via Detroit and Minneapolis back). Arrive Apr 11; 6 nights before the Apr 17 return. Checked 2026-10-28T22:52:29Z.
- 2027-04-10–2027-04-17 (return 7 days later): $669.99 Delta Air Lines (out CIU–BOS 4231 / 2053 / 865 16:10–00:58+1, back BOS–CIU 2222 / 4278 12:55–19:32; 2 connections via Detroit and Atlanta out, one connection via Detroit back). Arrive Apr 11; 6 nights before the Apr 17 return. Checked 2026-10-28T22:52:29Z.
May 2027
- 2027-05-08–2027-05-15 (return 7 days later): $455.73 Delta Air Lines (out CIU–BOS 4251 / 2002 08:31–16:41, back BOS–CIU 2222 / 4278 12:55–19:32; one connection via Minneapolis out, one connection via Detroit back). Checked 2026-10-28T22:58:08Z.
- 2027-05-28–2027-05-31 (return 3 days later): $684.54 Delta Air Lines (out CIU–BOS 4231 / 5215 / 5620 16:10–23:15, back BOS–CIU 2222 / 4278 12:55–19:32; 2 connections via Detroit and Cincinnati out, one connection via Detroit back). Checked 2026-10-28T23:03:26Z.
June 2027
- 2027-06-12–2027-06-19 (return 7 days later): $434.21 Delta Air Lines (out CIU–BOS 4231 / 2053 / 865 16:10–00:58+1, back BOS–CIU 5720 / 2130 / 4278 09:55–19:32; 2 connections via Detroit and Atlanta out, 2 connections via New York and Detroit back). Arrive Jun 13; 6 nights before the Jun 19 return. Checked 2026-10-28T23:17:40Z.
- 2027-06-12–2027-06-19 (return 7 days later): $621.52 Delta Air Lines (out CIU–BOS 4231 / 2053 / 865 16:10–00:58+1, back BOS–CIU 1278 / 4242 07:10–15:35; 2 connections via Detroit and Atlanta out, one connection via Minneapolis back). Arrive Jun 13; 6 nights before the Jun 19 return. Checked 2026-10-28T23:17:40Z.
- 2027-06-12–2027-06-19 (return 7 days later): $674.73 Delta Air Lines (out CIU–BOS 4231 / 2053 / 865 16:10–00:58+1, back BOS–CIU 2222 / 4278 12:55–19:32; 2 connections via Detroit and Atlanta out, one connection via Detroit back). Arrive Jun 13; 6 nights before the Jun 19 return. Checked 2026-10-28T23:17:40Z.
July 2027
- 2027-07-02–2027-07-05 (return 3 days later): $430.61 Delta Air Lines (out CIU–BOS 4231 / 5215 / 5620 16:10–23:15, back BOS–CIU 1278 / 4242 07:10–15:35; 2 connections via Detroit and Cincinnati out, one connection via Minneapolis back). Checked 2026-10-28T23:23:46Z.
- 2027-07-02–2027-07-05 (return 3 days later): $778.68 Delta Air Lines (out CIU–BOS 4231 / 5215 / 5620 16:10–23:15, back BOS–CIU 2222 / 4278 12:55–19:32; 2 connections via Detroit and Cincinnati out, one connection via Detroit back). Checked 2026-10-28T23:23:46Z.
- 2027-07-10–2027-07-17 (return 7 days later): $589.66 Delta Air Lines (out CIU–BOS 4231 / 2053 / 865 16:10–00:58+1, back BOS–CIU 1278 / 4242 07:10–15:35; 2 connections via Detroit and Atlanta out, one connection via Minneapolis back). Arrive Jul 11; 6 nights before the Jul 17 return. Checked 2026-10-28T21:03:43Z.
- 2027-07-10–2027-07-17 (return 7 days later): $674.73 Delta Air Lines (out CIU–BOS 4231 / 2053 / 865 16:10–00:58+1, back BOS–CIU 2222 / 4278 12:55–19:32; 2 connections via Detroit and Atlanta out, one connection via Detroit back). Arrive Jul 11; 6 nights before the Jul 17 return. Checked 2026-10-28T21:03:43Z.
August 2027
- 2027-08-07–2027-08-14 (return 7 days later): $434.21 Delta Air Lines (out CIU–BOS 4231 / 2053 / 1896 16:10–23:51, back BOS–CIU 5855 / 4961 / 4278 11:05–19:32; 2 connections via Detroit and Atlanta out, 2 connections via Cincinnati and Detroit back). Checked 2026-10-28T23:31:14Z.
- 2027-08-07–2027-08-14 (return 7 days later): $621.52 Delta Air Lines (out CIU–BOS 4231 / 2053 / 1896 16:10–23:51, back BOS–CIU 1278 / 4242 07:10–15:35; 2 connections via Detroit and Atlanta out, one connection via Minneapolis back). Checked 2026-10-28T23:31:14Z.
- 2027-08-07–2027-08-14 (return 7 days later): $714.03 Delta Air Lines (out CIU–BOS 4231 / 2053 / 1896 16:10–23:51, back BOS–CIU 2222 / 4278 12:55–19:32; 2 connections via Detroit and Atlanta out, one connection via Detroit back). Checked 2026-10-28T23:31:14Z.
September 2027
- 2027-09-03–2027-09-06 (return 3 days later): $430.61 Delta Air Lines (out CIU–BOS 4231 / 5215 / 5620 16:10–23:15, back BOS–CIU 3016 / 4242 08:15–15:35; 2 connections via Detroit and Cincinnati out, one connection via Minneapolis back). Checked 2026-10-28T23:39:05Z.
- 2027-09-11–2027-09-18 (return 7 days later): $455.73 Delta Air Lines (out CIU–BOS 4251 / 2002 08:31–16:41, back BOS–CIU 2222 / 4278 12:55–19:32; one connection via Minneapolis out, one connection via Detroit back). Checked 2026-10-28T23:44:19Z.
How we checked
On Oct 28, 2026, Axel priced round trips from CIU to BOS for one adult in economy: 1 Saturday departure with returns 14 days later, 12 Saturday and 2 Tuesday departures with returns 7 days later, 1 Friday and 1 Thursday departures with returns 4 days later, 3 Friday and 1 Thursday departures with returns 3 days later and 1 Friday departure with returns 2 days later, November 2026 to September 2027. Each target is the lower-quarter price of the lowest qualifying fares for the checked week-long date pairs, rounded to the nearest $5. The midpoint is their median; neither is a historical market average. Shorter journeys means ≤1 stop · ≤10h out / ≤10h back; overnight arrivals allowed. Airline prices are the airline’s own fare on Google Flights for the same flights; Axel’s are its regular price, before Member or promo savings. This is a snapshot, not a forecast. Check bags and change rules on your fare.
Airports covered: CIU → BOS. Each example names its actual airports.
Check current prices for your dates and travelers
Other available fares
CIU–BOS · 2026-11-21–2026-11-28 · 1 adult
Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.
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$481.39 · Delta Air Lines 4231 / 2777 / 865 · 16:15–01:08 (November 22, 2026) local · 2 stops (DTW, ATL) · 8h 53m. Airline fare: $507.
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$911.96 · Delta Air Lines 4251 / 2655 · 07:04–13:56 local · 1 stop (MSP) · 6h 52m. Airline fare: $963.
Captured example · October 28, 2026 at 08:08 PM UTC
CIU–BOS · 2026-11-10–2026-11-17 · 1 adult
Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.
- $647.90 · Delta Air Lines 4231 / 2777 / 865 · 16:15–01:08 (November 11, 2026) local · 2 stops (DTW, ATL) · 8h 53m. Airline fare: $682.
Captured example · October 28, 2026 at 07:10 PM UTC
CIU–BOS · 2026-12-04–2026-12-06 · 1 adult
Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.
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$455.73 · Delta Air Lines 4251 / 2558 · 08:20–17:01 local · 1 stop (MSP) · 8h 41m. Airline fare: $482.
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$465.43 · Delta Air Lines 4251 / 2655 · 08:20–14:00 local · 1 stop (MSP) · 5h 40m. Airline fare: $492.
Captured example · October 28, 2026 at 09:53 PM UTC
CIU–BOS · 2026-12-19–2026-12-26 · 1 adult
Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.
- $549.99 · Delta Air Lines 4231 / 1707 · 16:05–20:51 local · 1 stop (DTW) · 4h 46m. Airline fare: $582.
Captured example · October 28, 2026 at 08:13 PM UTC
CIU–BOS · 2026-12-03–2026-12-06 · 1 adult
Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.
- $455.73 · Delta Air Lines 4251 / 2655 · 08:20–14:00 local · 1 stop (MSP) · 5h 40m. Airline fare: $482.
Captured example · October 28, 2026 at 08:09 PM UTC
CIU–BOS · 2026-12-08–2026-12-15 · 1 adult
Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.
- $446.04 · Delta Air Lines 4231 / 2777 / 865 · 16:15–01:10 (December 9, 2026) local · 2 stops (DTW, ATL) · 8h 55m. Airline fare: $472.
Captured example · October 28, 2026 at 07:10 PM UTC
CIU–BOS · 2027-01-16–2027-01-23 · 1 adult
Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.
-
$455.73 · Delta Air Lines 4231 / 1187 · 16:20–23:49 local · 1 stop (DTW) · 7h 29m. Airline fare: $482.
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$494.59 · Delta Air Lines 4251 / 2655 · 08:20–14:00 local · 1 stop (MSP) · 5h 40m. Airline fare: $522.
Captured example · October 28, 2026 at 10:16 PM UTC
CIU–BOS · 2027-01-09–2027-01-23 · 1 adult
Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.
- $455.73 · Delta Air Lines 4251 / 2655 · 08:20–14:00 local · 1 stop (MSP) · 5h 40m. Airline fare: $482.
Captured example · October 28, 2026 at 10:09 PM UTC
CIU–BOS · 2027-02-13–2027-02-20 · 1 adult
Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.
- $465.43 · Delta Air Lines 4251 / 2655 · 08:31–14:05 local · 1 stop (MSP) · 5h 34m. Airline fare: $492.
Captured example · October 28, 2026 at 10:36 PM UTC
CIU–BOS · 2027-02-12–2027-02-16 · 1 adult
Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.
-
$817.69 · Delta Air Lines 4231 / 2053 / 865 · 16:10–00:58 (February 13, 2027) local · 2 stops (DTW, ATL) · 8h 48m. Airline fare: $863.
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$902.48 · Delta Air Lines 4251 / 2655 · 08:31–14:05 local · 1 stop (MSP) · 5h 34m. Airline fare: $954.
Captured example · October 28, 2026 at 10:24 PM UTC
CIU–BOS · 2027-03-25–2027-03-29 · 1 adult
Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.
-
$475.14 · Delta Air Lines 4251 / 2002 · 08:31–16:41 local · 1 stop (MSP) · 8h 10m. Airline fare: $502.
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$669.99 · Delta Air Lines 4251 / 2655 · 08:31–14:05 local · 1 stop (MSP) · 5h 34m. Airline fare: $706.
Captured example · October 28, 2026 at 10:47 PM UTC
CIU–BOS · 2027-03-06–2027-03-13 · 1 adult
Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.
-
$785.35 · Delta Air Lines 4231 / 2053 / 865 · 16:10–00:58 (March 7, 2027) local · 2 stops (DTW, ATL) · 8h 48m. Airline fare: $828.
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$902.48 · Delta Air Lines 4251 / 2655 · 08:31–14:05 local · 1 stop (MSP) · 5h 34m. Airline fare: $954.
Captured example · October 28, 2026 at 10:40 PM UTC
CIU–BOS · 2027-03-13–2027-03-20 · 1 adult
Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.
-
$735.98 · Delta Air Lines 4231 / 2053 / 865 · 16:10–00:58 (March 14, 2027) local · 2 stops (DTW, ATL) · 8h 48m. Airline fare: $778.
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$762.85 · Delta Air Lines 4251 / 2655 · 08:31–14:05 local · 1 stop (MSP) · 5h 34m. Airline fare: $803.
Captured example · October 28, 2026 at 08:45 PM UTC
CIU–BOS · 2027-04-10–2027-04-17 · 1 adult
Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.
-
$481.39 · Delta Air Lines 4231 / 2053 / 865 · 16:10–00:58 (April 11, 2027) local · 2 stops (DTW, ATL) · 8h 48m. Airline fare: $507.
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$857.39 · Delta Air Lines 4251 / 2655 · 08:31–14:05 local · 1 stop (MSP) · 5h 34m. Airline fare: $903.
Captured example · October 28, 2026 at 10:52 PM UTC
CIU–BOS · 2027-05-28–2027-05-31 · 1 adult
Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.
-
$684.54 · Delta Air Lines 4231 / 5215 / 5620 · 16:10–23:15 local · 2 stops (DTW, CVG) · 7h 5m. Airline fare: $724.
-
$829.64 · Delta Air Lines 4251 / 2002 · 08:31–16:41 local · 1 stop (MSP) · 8h 10m. Airline fare: $877.
-
$1,006.54 · Delta Air Lines 4251 / 2655 · 08:31–14:05 local · 1 stop (MSP) · 5h 34m. Airline fare: $1,064.
Captured example · October 28, 2026 at 11:03 PM UTC
CIU–BOS · 2027-05-08–2027-05-15 · 1 adult
Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.
-
$455.73 · Delta Air Lines 4251 / 2002 · 08:31–16:41 local · 1 stop (MSP) · 8h 10m. Airline fare: $482.
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$598.82 · Delta Air Lines 4251 / 2655 · 08:31–14:05 local · 1 stop (MSP) · 5h 34m. Airline fare: $632.
Captured example · October 28, 2026 at 10:58 PM UTC
CIU–BOS · 2027-06-12–2027-06-19 · 1 adult
Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.
-
$434.21 · Delta Air Lines 4231 / 2053 / 865 · 16:10–00:58 (June 13, 2027) local · 2 stops (DTW, ATL) · 8h 48m. Airline fare: $459.
-
$485.55 · Delta Air Lines 4251 / 2002 · 08:31–16:41 local · 1 stop (MSP) · 8h 10m. Airline fare: $513.
-
$674.73 · Delta Air Lines 4251 / 2655 · 08:31–14:05 local · 1 stop (MSP) · 5h 34m. Airline fare: $714.
Captured example · October 28, 2026 at 11:17 PM UTC
CIU–BOS · 2027-07-02–2027-07-05 · 1 adult
Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.
-
$430.61 · Delta Air Lines 4231 / 5215 / 5620 · 16:10–23:15 local · 2 stops (DTW, CVG) · 7h 5m. Airline fare: $454.
-
$828.11 · Delta Air Lines 4251 / 2002 · 08:31–16:41 local · 1 stop (MSP) · 8h 10m. Airline fare: $874.
Captured example · October 28, 2026 at 11:23 PM UTC
CIU–BOS · 2027-07-10–2027-07-17 · 1 adult
Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.
-
$589.66 · Delta Air Lines 4231 / 2053 / 865 · 16:10–00:58 (July 11, 2027) local · 2 stops (DTW, ATL) · 8h 48m. Airline fare: $623.
-
$647.90 · Delta Air Lines 4251 / 2002 · 08:31–16:41 local · 1 stop (MSP) · 8h 10m. Airline fare: $682.
-
$882.15 · Delta Air Lines 4251 / 2655 · 08:31–14:05 local · 1 stop (MSP) · 5h 34m. Airline fare: $933.
Captured example · October 28, 2026 at 09:03 PM UTC
CIU–BOS · 2027-08-07–2027-08-14 · 1 adult
Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.
-
$434.21 · Delta Air Lines 4231 / 2053 / 1896 · 16:10–23:51 local · 2 stops (DTW, ATL) · 7h 41m. Airline fare: $459.
-
$674.73 · Delta Air Lines 4251 / 2002 · 08:31–16:41 local · 1 stop (MSP) · 8h 10m. Airline fare: $714.
-
$877.80 · Delta Air Lines 4251 / 2655 · 08:31–14:05 local · 1 stop (MSP) · 5h 34m. Airline fare: $924.
Captured example · October 28, 2026 at 11:31 PM UTC
CIU–BOS · 2027-09-11–2027-09-18 · 1 adult
Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.
-
$455.73 · Delta Air Lines 4251 / 2002 · 08:31–16:41 local · 1 stop (MSP) · 8h 10m. Airline fare: $482.
-
$807.79 · Delta Air Lines 4251 / 2655 · 08:31–14:05 local · 1 stop (MSP) · 5h 34m. Airline fare: $853.
Captured example · October 28, 2026 at 11:44 PM UTC
CIU–BOS · 2027-09-03–2027-09-06 · 1 adult
Round-trip starting price · Economy · USD. Round-trip starting prices; outbound options shown. The final total depends on return selection and availability.
-
$430.61 · Delta Air Lines 4231 / 5215 / 5620 · 16:10–23:15 local · 2 stops (DTW, CVG) · 7h 5m. Airline fare: $454.
-
$704.19 · Delta Air Lines 4251 / 2002 · 08:31–16:41 local · 1 stop (MSP) · 8h 10m. Airline fare: $744.
-
$1,046.59 · Delta Air Lines 4251 / 2655 · 08:31–14:05 local · 1 stop (MSP) · 5h 34m. Airline fare: $1,104.
Captured example · October 28, 2026 at 11:39 PM UTC
Airline prices are the airline’s own fares for the same flights, as listed on Google Flights. Airline checkout totals were not separately verified.
Airline ratings: Delta Air Lines 7.5/10. Every airline rated.
Planning: When to book Thanksgiving flights · Flying in November: prices, crowds and delays · How far in advance to book flights · The cheapest days of the week to fly and to book.
Trip ideas from Sault Ste. Marie with Boston (BOS)
- Cheapest places to fly from Sault Ste. Marie in November: fly Nov 7 – Nov 14, 2026
- Flights from Sault Ste. Marie to the Northeast in fall: fly Nov 7 – Nov 14, 2026
- Best places to fly from Sault Ste. Marie for Thanksgiving: fly Nov 21 – Nov 28, 2026
- Flights from Sault Ste. Marie to the Northeast for Thanksgiving: fly Nov 21 – Nov 28, 2026
- Cheapest places to fly from Sault Ste. Marie for 4 days: fly Dec 3 – Dec 6, 2026
- Flights from Sault Ste. Marie to the Northeast for 4 days: fly Dec 3 – Dec 6, 2026
- Flights from Sault Ste. Marie to the Northeast for 3 days: fly Dec 4 – Dec 6, 2026
- Cheapest places to fly from Sault Ste. Marie in December: fly Dec 5 – Dec 12, 2026
- Best places to fly from Sault Ste. Marie for Christmas: fly Dec 19 – Dec 26, 2026
- Flights from Sault Ste. Marie to the Northeast for Christmas: fly Dec 19 – Dec 26, 2026
- Cheapest places to fly from Sault Ste. Marie for two weeks: fly Jan 9 – Jan 23, 2027
- Best places to fly from Sault Ste. Marie for MLK weekend: fly Jan 15 – Jan 18, 2027
- Cheapest places to fly from Sault Ste. Marie in January: fly Jan 16 – Jan 23, 2027
- Best places to fly from Sault Ste. Marie for Presidents' Day weekend: fly Feb 12 – Feb 16, 2027
- Cheapest places to fly from Sault Ste. Marie in February: fly Feb 13 – Feb 20, 2027
- Cheapest places to fly from Sault Ste. Marie in March: fly Mar 6 – Mar 13, 2027
- Best places to fly from Sault Ste. Marie for spring break: fly Mar 13 – Mar 20, 2027
- Flights from Sault Ste. Marie to the Northeast for spring break: fly Mar 13 – Mar 20, 2027
- Best places to fly from Sault Ste. Marie for Easter weekend: fly Mar 25 – Mar 29, 2027
- Cheapest places to fly from Sault Ste. Marie in April: fly Apr 10 – Apr 17, 2027
- Cheapest places to fly from Sault Ste. Marie in May: fly May 8 – May 15, 2027
- Best places to fly from Sault Ste. Marie for Memorial Day weekend: fly May 28 – May 31, 2027
- Cheapest places to fly from Sault Ste. Marie in June: fly Jun 12 – Jun 19, 2027
- Flights from Sault Ste. Marie to the Northeast in summer: fly Jun 26 – Jul 3, 2027
- Best places to fly from Sault Ste. Marie for July 4th weekend: fly Jul 2 – Jul 5, 2027
- Cheapest places to fly from Sault Ste. Marie in July: fly Jul 10 – Jul 17, 2027
- Cheapest places to fly from Sault Ste. Marie in August: fly Aug 7 – Aug 14, 2027
- Best places to fly from Sault Ste. Marie for Labor Day weekend: fly Sep 3 – Sep 6, 2027
- Cheapest places to fly from Sault Ste. Marie in September: fly Sep 11 – Sep 18, 2027
- Cheapest places to fly from Sault Ste. Marie for a week
- Flights from Sault Ste. Marie to the Northeast for a week
- Flights to your cruise port from Sault Ste. Marie
- Halloween trips from Sault Ste. Marie: Salem, New Orleans, Horror Nights, Derry and Transylvania
- The best US cities to visit from Sault Ste. Marie
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Source: https://helloaxel.com/en/flights/from-sault-ste-marie-ciu-to-boston-bos
For AI assistants
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