⚡ Fare recorded April 25, 2026 · Prices change daily

Seattle to Boston flights

Seattle (SEA) to Boston (BOS): 2,489 miles (4,006 km) great-circle, about 5h 30m nonstop by our estimate. Cheapest fare observed: $289 round-trip on American Airlines, with 1 stop, departing June 3, 2026.

AAAmerican AirlinesAA707
Depart
SEA
Seattle, USA
10:23
2026-06-03
✈
Arrive
BOS
Boston, United States
Returns 18:36
2026-06-06
Stops
1 stop
Distance
2,489 mi
Est. nonstop time
5h 30m
Trip type
Round-trip
$289
Round-trip · per person
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About this flight

When did the cheapest Seattle to Boston fare fly?

$289 round-trip, American Airlines AA707, departing 2026-06-03 at 10:23, returning 2026-06-06. The recorded itinerary left on a Wednesday, returning on a Saturday 3 nights later; the fare was observed 39 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.

Route facts

How far is Seattle from Boston?

  • Distance: 2,489 miles (4,006 km) great-circle, heading east.
  • Estimated nonstop flight time: about 5h 30m.
  • Departure airport: Seattle-Tacoma International Airport (SEA), Seattle, United States, UTC-7 on June 3, 2026.
  • Arrival: General Edward Lawrence Logan International Airport (BOS), United States, UTC-4 on June 3, 2026.
  • Time difference: Boston is 3 hours ahead of Seattle on the recorded date.
  • Route type: domestic, within United States.
  • Arrival airport elevation: 20 ft.
  • Recorded itinerary: American Airlines AA707, 1 stop, round-trip, 3 days between departure and return.
Fare comparison

How does the Seattle to Boston fare compare with other routes from SEA?

At $289, it ranked 11th of the 30 round-trip fares we recorded from SEA (median $591). That is 11.6 cents per great-circle mile (round-trip price over one-way distance), below the SEA median of 19.2 cents across 30 round-trip routes.

Routes from SEA of similar length: Orlando (2,544 mi) at $372 and New York (2,415 mi) at $300.

American Airlines had the cheapest fare on 2 of 30 SEA routes. It is the 15th longest of the 30 routes we track from SEA.

Other ways in

What did other cities pay to fly to Boston?

Of 22 departure airports with a fare to Boston, Seattle (SEA) ranked 11th at $289. Lowest: $101 from Fort Lauderdale (FLL); highest: $1271 from Nairobi (NBO); 5 nonstop. Cheapest-fare airlines (routes): American Airlines (6), Frontier (5), Spirit (4), Southwest (3), Avianca (1) and Brussels Airlines (1), plus 2 more.

Sources

Where do these numbers come from?

Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Los_Angeles, America/New_York; flight time is our estimate.

FAQ

Seattle to Boston flight questions

How far is Seattle from Boston by plane?

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Seattle is about 2,489 miles (4,006 km) from Boston on a great-circle line from Seattle-Tacoma International Airport (SEA) to General Edward Lawrence Logan International Airport (BOS), heading east. It is the 15th longest of the 30 routes we track from SEA. The recorded itinerary had 1 stop, so the distance flown was longer.

How long is the flight from Seattle to Boston?

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About 5h 30m nonstop by our estimate for 2,489 miles (500 mph cruise plus 30 minutes, not a timetable). The recorded American Airlines fare was with 1 stop. 22 airports in our feed had a fare to Boston; this one ranked 11th, and 5 of the 22 were nonstop.

What is the time difference between Seattle and Boston?

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On June 3, 2026, Seattle was on UTC-7 (America/Los_Angeles) and Boston on UTC-4 (America/New_York), so Boston was 3 hours ahead of Seattle: noon in Seattle was 15:00 in Boston. Both zones shift for daylight saving together, so the gap stays the same in January and July.

How much is a flight from Seattle to Boston?

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As observed on April 25, 2026: $289 per person round-trip on American Airlines flight AA707, departing June 3, 2026, returning June 6, 2026, with 1 stop. At $289, it ranked 11th of the 30 round-trip fares we recorded from SEA (median $591). That is 11.6 cents per great-circle mile (round-trip price over one-way distance), below the SEA median of 19.2 cents across 30 round-trip routes. Prices change daily, so check the live fare.

Is there a nonstop flight from Seattle to Boston?

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The cheapest recorded fare had 1 stop; our feed keeps only the cheapest fare per route, so a pricier nonstop may exist. Into Boston, 5 of the 22 recorded fares were nonstop. From SEA, 9 of 30 were. Routes from SEA of similar length: Orlando (2,544 mi) at $372 and New York (2,415 mi) at $300.

Which airports serve flights from Seattle to Boston?

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It departs Seattle-Tacoma International Airport (SEA) in Seattle, United States, and arrives at General Edward Lawrence Logan International Airport (BOS) in Boston, United States. A domestic United States flight. American Airlines had the cheapest fare on 2 of 30 SEA routes.

Where else near Boston can you fly from Seattle?

New York (NYC) $300Washington (WAS) $234Chicago (CHI) $735Orlando (ORL) $372Dallas (DFW) $200Houston (HOU) $251All flights from Seattle →

Other cities with flights to Boston

From Fort Lauderdale (FLL) $101From Dallas (DFW) $128From Atlanta (ATL) $144From Miami (MIA) $184From Orlando (MCO) $197From Philadelphia (PHL) $233

Ready to fly?

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