Cheap flights from Boston, MA to Seattle, WA
Flights starting at $177. Choose between Alaska Airlines, United Airlines, or JetBlue Airways to find the best price.
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Cheapest one-way trip | $190 |
---|---|
Cheapest nonstop round-trip | $216 |
Cheapest round-trip | $358 |
Average round-trip | $419 |
Nonstop flights in May | $216 – $484 |
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Book your trip to arrive at Seattle–Tacoma International, or Kenmore Air Harbor Seaplane Base. The distance between Boston and Seattle is 4010 km. The most popular airlines for this route are Alaska Airlines, United Airlines, JetBlue Airways, and Sun Country Airlines. Boston and Seattle have 62 direct flights per week.
Weekly direct flights
Discover the top airlines offering direct flights from Boston to Seattle in the next month. You’ll find the number of daily direct flights per airline in the table.
Weekly direct flights for Sun 28.04 - Sat 04.05
Airline | Sun 28.04 | Mon 29.04 | Tue 30.04 | Wed 01.05 | Thu 02.05 | Fri 03.05 | Sat 04.05 |
---|---|---|---|---|---|---|---|
4 | 3 | 3 | 3 | 4 | 4 | 4 | |
1 | 1 | 1 | 1 | 1 | 1 | 1 |
Weekly direct flights for Sun 05.05 - Sat 11.05
Airline | Sun 05.05 | Mon 06.05 | Tue 07.05 | Wed 08.05 | Thu 09.05 | Fri 10.05 | Sat 11.05 |
---|---|---|---|---|---|---|---|
4 | 4 | 3 | 3 | 4 | 4 | 4 | |
1 | 1 | 1 | 1 | 1 | 1 | 1 |
Weekly direct flights for Sun 12.05 - Sat 18.05
Airline | Sun 12.05 | Mon 13.05 | Tue 14.05 | Wed 15.05 | Thu 16.05 | Fri 17.05 | Sat 18.05 |
---|---|---|---|---|---|---|---|
4 | 4 | 3 | 3 | 3 | 4 | 4 | |
1 | 1 | 1 | 1 | 1 | 1 | 1 |
Weekly direct flights for Sun 19.05 - Sat 25.05
Airline | Sun 19.05 | Mon 20.05 | Tue 21.05 | Wed 22.05 | Thu 23.05 | Fri 24.05 | Sat 25.05 |
---|---|---|---|---|---|---|---|
4 | 4 | 4 | 4 | 4 | 4 | 4 | |
1 | 1 | 1 | 1 | 1 | 1 | 1 |
Check-in for a flight from Boston to Seattle
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Alaska Airlines | ASA | AS | No | Opens 24 days before flight Closes 1 hours before flight |
United Airlines | UAL | UA | Yes | No |
JetBlue Airways | JBU | B6 | No | Opens 24 days before flight Closes 2 hours before flight |
Sun Country Airlines | SCX | SY | Yes | No |
Weather in Seattle
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 7°C | 2°C |
February | 8°C | 1°C |
March | 10°C | 3°C |
April | 13°C | 4°C |
May | 18°C | 8°C |
June | 21°C | 10°C |
July | 25°C | 13°C |
August | 26°C | 14°C |
September | 22°C | 11°C |
October | 15°C | 7°C |
November | 10°C | 4°C |
December | 6°C | 1°C |
14 day forecast
Frequently asked questions
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