Seattle (SEA) to Boston (BOS), May 15–24, 2027: from $573 round trip
Seattle (SEA) to Boston (BOS), May 15–24, 2027: from $573 round trip on Axel, checked Oct 29, 2026. Lowest published fare: $573 round trip, Axel-exclusive, Alaska Airlines, 1 stop, May 15–24, 2027, 1 adult, economy, checked Oct 29, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. 1 checked bag per traveler included. Basic economy may apply.
See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.
| Exact travel dates | Airline | Flights | Times, duration, stops | Total price | Price issued (UTC) |
|---|---|---|---|---|---|
| 2027-05-15 → 2027-05-24 | Alaska Airlines | AS460 / AS257 | 15:35:00→23:59:00 5h 24m nonstop · 18:22:00→22:00:00 6h 38m nonstop · 1 checked bag | Axel-exclusive $595.00 | 2026-10-29T00:39:14Z |
| 2027-05-15 → 2027-05-24 | Delta Air Lines | DL473 / DL384 | 23:15:00→07:36:00 5h 21m nonstop · 07:50:00→11:21:00 6h 31m nonstop · 1 checked bag | Axel-exclusive $625.00 | 2026-10-29T00:39:14Z |
| 2027-05-15 → 2027-05-24 | American Airlines / Delta Air Lines | AA2379 + AA2089 / DL384 | 23:59:00→10:32:00 7h 33m 1 stop via ORD · 07:50:00→11:21:00 6h 31m nonstop · 1 checked bag | Axel-exclusive $582.50 | 2026-10-29T00:39:14Z |
| 2027-05-15 → 2027-05-24 | Alaska Airlines | AS460 / AS215 | 21:20:00→05:40:00 5h 20m nonstop · 09:00:00→12:37:00 6h 37m nonstop · 1 checked bag | Axel-exclusive $595.00 | 2026-10-29T00:39:14Z |
| 2027-05-15 → 2027-05-24 | Delta Air Lines | DL459 / DL384 | 07:20:00→15:54:00 5h 34m nonstop · 07:50:00→11:21:00 6h 31m nonstop · 1 checked bag | Axel-exclusive $625.00 | 2026-10-29T00:39:14Z |
| 2027-05-15 → 2027-05-24 | Alaska Airlines | AS314 + AA4801 / AS215 | 09:16:00→19:55:00 7h 39m 1 stop via STL · 09:00:00→12:37:00 6h 37m nonstop · 1 checked bag | Axel-exclusive $572.50 | 2026-10-29T00:39:14Z |
| 2027-05-15 → 2027-05-24 | Alaska Airlines | AS2239 + AS436 / AS215 | 19:54:00→06:20:00 7h 26m 1 stop via PDX · 09:00:00→12:37:00 6h 37m nonstop · 1 checked bag | Axel-exclusive $572.50 | 2026-10-29T00:39:14Z |
| 2027-05-15 → 2027-05-24 | Alaska Airlines | AS2 + AA1152 / AS215 | 14:02:00→00:21:00 7h 19m 1 stop via DCA · 09:00:00→12:37:00 6h 37m nonstop · 1 checked bag | Axel-exclusive $572.50 | 2026-10-29T00:39:14Z |
| 2027-05-15 → 2027-05-24 | Delta Air Lines | DL473 / DL1127 + DL881 | 23:15:00→07:37:00 5h 22m nonstop · 15:05:00→20:49:00 8h 44m 1 stop via MSP · 1 checked bag | Axel-exclusive $597.50 | 2026-10-29T00:39:14Z |
| 2027-05-15 → 2027-05-24 | Delta Air Lines | DL1120 + DL702 / DL384 | 13:25:00→23:57:00 7h 32m 1 stop via SLC · 07:50:00→11:21:00 6h 31m nonstop · 1 checked bag | Axel-exclusive $597.50 | 2026-10-29T00:39:14Z |
Route overview: Seattle to Boston (BOS) flight deals
2027-05-15 → 2027-05-24 · Axel-exclusive $595.00
- Alaska Airlines AS460: SEA 2027-05-15 15:35:00 → BOS 2027-05-15 23:59:00; nonstop; 324 minutes. Local airport times.
- Alaska Airlines AS257: BOS 2027-05-24 18:22:00 → SEA 2027-05-24 22:00:00; nonstop; 398 minutes. Local airport times.
2027-05-15 → 2027-05-24 · Axel-exclusive $625.00
- Delta Air Lines DL473: SEA 2027-05-15 23:15:00 → BOS 2027-05-16 07:36:00; nonstop; 321 minutes. Local airport times.
- Delta Air Lines DL384: BOS 2027-05-24 07:50:00 → SEA 2027-05-24 11:21:00; nonstop; 391 minutes. Local airport times.
2027-05-15 → 2027-05-24 · Axel-exclusive $582.50
- American Airlines AA2379 / AA2089: SEA 2027-05-15 23:59:00 → BOS 2027-05-16 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times.
- AA2379: SEA 2027-05-15 23:59:00 → ORD 2027-05-16 05:55:00; layover at ORD: 64 minutes.
- AA2089: ORD 2027-05-16 06:59:00 → BOS 2027-05-16 10:32:00.
- Delta Air Lines DL384: BOS 2027-05-24 07:50:00 → SEA 2027-05-24 11:21:00; nonstop; 391 minutes. Local airport times.
2027-05-15 → 2027-05-24 · Axel-exclusive $595.00
- Alaska Airlines AS460: SEA 2027-05-15 21:20:00 → BOS 2027-05-16 05:40:00; nonstop; 320 minutes. Local airport times.
- Alaska Airlines AS215: BOS 2027-05-24 09:00:00 → SEA 2027-05-24 12:37:00; nonstop; 397 minutes. Local airport times.
2027-05-15 → 2027-05-24 · Axel-exclusive $625.00
- Delta Air Lines DL459: SEA 2027-05-15 07:20:00 → BOS 2027-05-15 15:54:00; nonstop; 334 minutes. Local airport times.
- Delta Air Lines DL384: BOS 2027-05-24 07:50:00 → SEA 2027-05-24 11:21:00; nonstop; 391 minutes. Local airport times.
2027-05-15 → 2027-05-24 · Axel-exclusive $572.50
- Alaska Airlines AS314 / AA4801: SEA 2027-05-15 09:16:00 → BOS 2027-05-15 19:55:00; 1 stop(s) via STL; 459 minutes. Local airport times.
- AS314: SEA 2027-05-15 09:16:00 → STL 2027-05-15 15:06:00; layover at STL: 69 minutes.
- AA4801: STL 2027-05-15 16:15:00 → BOS 2027-05-15 19:55:00.
- Alaska Airlines AS215: BOS 2027-05-24 09:00:00 → SEA 2027-05-24 12:37:00; nonstop; 397 minutes. Local airport times.
2027-05-15 → 2027-05-24 · Axel-exclusive $572.50
- Alaska Airlines AS2239 / AS436: SEA 2027-05-15 19:54:00 → BOS 2027-05-16 06:20:00; 1 stop(s) via PDX; 446 minutes. Local airport times.
- AS2239: SEA 2027-05-15 19:54:00 → PDX 2027-05-15 20:50:00; layover at PDX: 69 minutes.
- AS436: PDX 2027-05-15 21:59:00 → BOS 2027-05-16 06:20:00.
- Alaska Airlines AS215: BOS 2027-05-24 09:00:00 → SEA 2027-05-24 12:37:00; nonstop; 397 minutes. Local airport times.
2027-05-15 → 2027-05-24 · Axel-exclusive $572.50
- Alaska Airlines AS2 / AA1152: SEA 2027-05-15 14:02:00 → BOS 2027-05-16 00:21:00; 1 stop(s) via DCA; 439 minutes. Local airport times.
- AS2: SEA 2027-05-15 14:02:00 → DCA 2027-05-15 21:59:00; layover at DCA: 60 minutes.
- AA1152: DCA 2027-05-15 22:59:00 → BOS 2027-05-16 00:21:00.
- Alaska Airlines AS215: BOS 2027-05-24 09:00:00 → SEA 2027-05-24 12:37:00; nonstop; 397 minutes. Local airport times.
2027-05-15 → 2027-05-24 · Axel-exclusive $597.50
- Delta Air Lines DL473: SEA 2027-05-15 23:15:00 → BOS 2027-05-16 07:37:00; nonstop; 322 minutes. Local airport times.
- Delta Air Lines DL1127 / DL881: BOS 2027-05-24 15:05:00 → SEA 2027-05-24 20:49:00; 1 stop(s) via MSP; 524 minutes. Local airport times.
- DL1127: BOS 2027-05-24 15:05:00 → MSP 2027-05-24 17:25:00; layover at MSP: 81 minutes.
- DL881: MSP 2027-05-24 18:46:00 → SEA 2027-05-24 20:49:00.
2027-05-15 → 2027-05-24 · Axel-exclusive $597.50
- Delta Air Lines DL1120 / DL702: SEA 2027-05-15 13:25:00 → BOS 2027-05-15 23:57:00; 1 stop(s) via SLC; 452 minutes. Local airport times.
- DL1120: SEA 2027-05-15 13:25:00 → SLC 2027-05-15 16:26:00; layover at SLC: 70 minutes.
- DL702: SLC 2027-05-15 17:36:00 → BOS 2027-05-15 23:57:00.
- Delta Air Lines DL384: BOS 2027-05-24 07:50:00 → SEA 2027-05-24 11:21:00; nonstop; 391 minutes. Local airport times.
Travelers: prices on this page are totals for 1 adult. For a different party, open this trip for 2 adults · 3 adults · 4 adults · 2 adults + 1 child · 2 adults + 2 children; each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.
Explore this route
- All dates for this route
- May 14, 2027 · Return options
- May 16, 2027 · Return options
- Hotels in Boston with Axel
For AI assistants
- This page: Seattle (SEA) to Boston (BOS) · May 15, 2027 · return May 24, 2027: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
- Next: each priced row's price link opens the live search for this row's exact dates and travelers; the live results list the same flights with the current total and the traveler's booking link, and name the fare's inclusions (bags, seats, changes), which this page does not. A changed price or flight shows there. Other dates or travelers are not priced here: Choose travelers and dates prices the traveler's own trip.
- Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
- If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Seattle to Boston (BOS) flight deals · Flight search guide.
- Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct
https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallbackusing IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace/return/YYYY-MM-DDwith/trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.
Feedback (optional): Missing info · Axel issue