Seattle (SEA) to Boston (BOS), Jul 27, 2027 – Aug 5, 2027: from $568 round trip

Seattle (SEA) to Boston (BOS), Jul 27, 2027 – Aug 5, 2027: from $568 round trip on Axel, checked Oct 29, 2026. Lowest published fare: $568 round trip, Axel-exclusive, American Airlines / Alaska Airlines, 1 stop, Jul 27, 2027 – Aug 5, 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)
2027-07-27 → 2027-08-05 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
2027-07-27 → 2027-08-05 Delta Air Lines DL474 / DL384 15:45:00→00:02:00 5h 17m nonstop · 07:30:00→11:05:00 6h 35m nonstop · 1 checked bag Axel-exclusive $625.00 2026-10-29T00:39:14Z
2027-07-27 → 2027-08-05 American Airlines / Alaska Airlines AA2379 + AA2089 / AS215 23:59:00→10:32:00 7h 33m 1 stop via ORD · 09:00:00→12:37:00 6h 37m nonstop · 1 checked bag Axel-exclusive $567.50 2026-10-29T00:39:14Z
2027-07-27 → 2027-08-05 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
2027-07-27 → 2027-08-05 Delta Air Lines DL459 / DL384 07:38:00→16:03:00 5h 25m nonstop · 07:30:00→11:05:00 6h 35m nonstop · 1 checked bag Axel-exclusive $625.00 2026-10-29T00:39:14Z
2027-07-27 → 2027-08-05 American Airlines / Alaska Airlines AA2203 + AA1874 / AS215 12:34:00→23:13:00 7h 39m 1 stop via PHL · 09:00:00→12:37:00 6h 37m nonstop · 1 checked bag Axel-exclusive $567.50 2026-10-29T00:39:14Z
2027-07-27 → 2027-08-05 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
2027-07-27 → 2027-08-05 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
2027-07-27 → 2027-08-05 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
2027-07-27 → 2027-08-05 Delta Air Lines DL1120 + DL702 / DL384 13:25:00→23:57:00 7h 32m 1 stop via SLC · 07:30:00→11:05:00 6h 35m nonstop · 1 checked bag Axel-exclusive $597.50 2026-10-29T00:39:14Z

Route overview: Seattle to Boston (BOS) flight deals

2027-07-27 → 2027-08-05 · Axel-exclusive $595.00

2027-07-27 → 2027-08-05 · Axel-exclusive $625.00

2027-07-27 → 2027-08-05 · Axel-exclusive $567.50

2027-07-27 → 2027-08-05 · Axel-exclusive $595.00

2027-07-27 → 2027-08-05 · Axel-exclusive $625.00

2027-07-27 → 2027-08-05 · Axel-exclusive $567.50

2027-07-27 → 2027-08-05 · Axel-exclusive $572.50

2027-07-27 → 2027-08-05 · Axel-exclusive $572.50

2027-07-27 → 2027-08-05 · Axel-exclusive $572.50

2027-07-27 → 2027-08-05 · Axel-exclusive $597.50

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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