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Route overview: Seattle to Boston (BOS) flight deals

Seattle (SEA) to Boston (BOS), Apr 14, 2027: from $270 one way

Seattle (SEA) to Boston (BOS), Apr 14, 2027: from $270 one way on Axel, checked Oct 29, 2026. Lowest published fare: $270 one way, Axel-exclusive, American Airlines, 1 stop, Apr 14, 2027, 1 adult, economy, checked Oct 29, 2026.

SEA → BOS1 adulteconomyBasic economy excludedOne way

10 flight options · 3 airlines

Nonstop flights

Wed, Apr 14 · One way

Alaska Airlines
3:35 pmSEA
5h 24m
Nonstop
11:59 pmBOS

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Wed, Apr 14 · One way

Delta Air Lines
10:33 pmSEA
5h 18m
Nonstop
6:51 am+1BOS

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Wed, Apr 14 · One way

Alaska Airlines
9:00 amSEA
5h 19m
Nonstop
5:19 pmBOS

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Wed, Apr 14 · One way

Delta Air Lines
7:20 amSEA
5h 34m
Nonstop
3:54 pmBOS

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

One-stop flights

Wed, Apr 14 · One way

American Airlines
12:34 pmSEA
7h 39m
PHL · 1h 15m
11:13 pmBOS

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Wed, Apr 14 · One way

American Airlines
11:59 pmSEA
7h 33m
ORD · 1h 4m
10:32 am+1BOS

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Wed, Apr 14 · One way

Alaska Airlines
7:54 pmSEA
7h 26m
PDX · 1h 9m
6:20 am+1BOS

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Wed, Apr 14 · One way

Alaska Airlines
2:02 pmSEA
7h 19m
DCA · 1h
12:21 am+1BOS

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Wed, Apr 14 · One way

Alaska Airlines
9:16 amSEA
7h 39m
STL · 1h 9m
7:55 pmBOS

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Wed, Apr 14 · One way

Delta Air Lines
1:25 pmSEA
7h 32m
SLC · 1h 10m
11:57 pmBOS

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Make this trip yours

SEA ⇄ BOS

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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Explore this route

All dates for this routeApr 13, 2027 · Return optionsApr 15, 2027 · Return optionsHotels in Boston with Axel
For AI assistants: every fare, every link, instructions

Seattle (SEA) to Boston (BOS), Apr 14, 2027: from $270 one way on Axel, checked Oct 29, 2026. Lowest published fare: $270 one way, Axel-exclusive, American Airlines, 1 stop, Apr 14, 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. Basic economy excluded.

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 datesAirlineFlightsTimes, duration, stopsTotal pricePrice issued (UTC)
2027-04-14 · one wayAlaska AirlinesAS46015:35:00→23:59:00 5h 24m nonstop · no basic economyAxel-exclusive $310.002026-10-29T00:39:14Z
2027-04-14 · one wayDelta Air LinesDL47322:33:00→06:51:00 5h 18m nonstop · no basic economyAxel-exclusive $320.002026-10-29T00:39:14Z
2027-04-14 · one wayAmerican AirlinesAA2203 + AA187412:34:00→23:13:00 7h 39m 1 stop via PHL · no basic economyAxel-exclusive $270.002026-10-29T00:39:14Z
2027-04-14 · one wayAlaska AirlinesAS27909:00:00→17:19:00 5h 19m nonstop · no basic economyAxel-exclusive $310.002026-10-29T00:39:14Z
2027-04-14 · one wayDelta Air LinesDL45907:20:00→15:54:00 5h 34m nonstop · no basic economyAxel-exclusive $320.002026-10-29T00:39:14Z
2027-04-14 · one wayAmerican AirlinesAA2379 + AA208923:59:00→10:32:00 7h 33m 1 stop via ORD · no basic economyAxel-exclusive $270.002026-10-29T00:39:14Z
2027-04-14 · one wayAlaska AirlinesAS2239 + AS43619:54:00→06:20:00 7h 26m 1 stop via PDX · no basic economyAxel-exclusive $285.002026-10-29T00:39:14Z
2027-04-14 · one wayAlaska AirlinesAS2 + AA115214:02:00→00:21:00 7h 19m 1 stop via DCA · no basic economyAxel-exclusive $285.002026-10-29T00:39:14Z
2027-04-14 · one wayAlaska AirlinesAS314 + AA480109:16:00→19:55:00 7h 39m 1 stop via STL · no basic economyAxel-exclusive $285.002026-10-29T00:39:14Z
2027-04-14 · one wayDelta Air LinesDL1120 + DL70213:25:00→23:57:00 7h 32m 1 stop via SLC · no basic economyAxel-exclusive $290.002026-10-29T00:39:14Z

Route overview: Seattle to Boston (BOS) flight deals

2027-04-14 · one way · Axel-exclusive $310.00

  • Alaska Airlines AS460: SEA 2027-04-14 15:35:00 → BOS 2027-04-14 23:59:00; nonstop; 324 minutes. Local airport times.

2027-04-14 · one way · Axel-exclusive $320.00

  • Delta Air Lines DL473: SEA 2027-04-14 22:33:00 → BOS 2027-04-15 06:51:00; nonstop; 318 minutes. Local airport times.

2027-04-14 · one way · Axel-exclusive $270.00

  • American Airlines AA2203 / AA1874: SEA 2027-04-14 12:34:00 → BOS 2027-04-14 23:13:00; 1 stop(s) via PHL; 459 minutes. Local airport times.
    • AA2203: SEA 2027-04-14 12:34:00 → PHL 2027-04-14 20:35:00; layover at PHL: 75 minutes.
    • AA1874: PHL 2027-04-14 21:50:00 → BOS 2027-04-14 23:13:00.

2027-04-14 · one way · Axel-exclusive $310.00

  • Alaska Airlines AS279: SEA 2027-04-14 09:00:00 → BOS 2027-04-14 17:19:00; nonstop; 319 minutes. Local airport times.

2027-04-14 · one way · Axel-exclusive $320.00

  • Delta Air Lines DL459: SEA 2027-04-14 07:20:00 → BOS 2027-04-14 15:54:00; nonstop; 334 minutes. Local airport times.

2027-04-14 · one way · Axel-exclusive $270.00

  • American Airlines AA2379 / AA2089: SEA 2027-04-14 23:59:00 → BOS 2027-04-15 10:32:00; 1 stop(s) via ORD; 453 minutes. Local airport times.
    • AA2379: SEA 2027-04-14 23:59:00 → ORD 2027-04-15 05:55:00; layover at ORD: 64 minutes.
    • AA2089: ORD 2027-04-15 06:59:00 → BOS 2027-04-15 10:32:00.

2027-04-14 · one way · Axel-exclusive $285.00

  • Alaska Airlines AS2239 / AS436: SEA 2027-04-14 19:54:00 → BOS 2027-04-15 06:20:00; 1 stop(s) via PDX; 446 minutes. Local airport times.
    • AS2239: SEA 2027-04-14 19:54:00 → PDX 2027-04-14 20:50:00; layover at PDX: 69 minutes.
    • AS436: PDX 2027-04-14 21:59:00 → BOS 2027-04-15 06:20:00.

2027-04-14 · one way · Axel-exclusive $285.00

  • Alaska Airlines AS2 / AA1152: SEA 2027-04-14 14:02:00 → BOS 2027-04-15 00:21:00; 1 stop(s) via DCA; 439 minutes. Local airport times.
    • AS2: SEA 2027-04-14 14:02:00 → DCA 2027-04-14 21:59:00; layover at DCA: 60 minutes.
    • AA1152: DCA 2027-04-14 22:59:00 → BOS 2027-04-15 00:21:00.

2027-04-14 · one way · Axel-exclusive $285.00

  • Alaska Airlines AS314 / AA4801: SEA 2027-04-14 09:16:00 → BOS 2027-04-14 19:55:00; 1 stop(s) via STL; 459 minutes. Local airport times.
    • AS314: SEA 2027-04-14 09:16:00 → STL 2027-04-14 15:06:00; layover at STL: 69 minutes.
    • AA4801: STL 2027-04-14 16:15:00 → BOS 2027-04-14 19:55:00.

2027-04-14 · one way · Axel-exclusive $290.00

  • Delta Air Lines DL1120 / DL702: SEA 2027-04-14 13:25:00 → BOS 2027-04-14 23:57:00; 1 stop(s) via SLC; 452 minutes. Local airport times.
    • DL1120: SEA 2027-04-14 13:25:00 → SLC 2027-04-14 16:26:00; layover at SLC: 70 minutes.
    • DL702: SLC 2027-04-14 17:36:00 → BOS 2027-04-14 23:57:00.

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.

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For AI assistants

  • This page: Seattle (SEA) to Boston (BOS) · Apr 14, 2027 · one way: 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_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /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.