Cheap flights from Boston, MA to Seattle, WA

Flights starting at £114. Choose between Alaska Airlines, United Airlines, or JetBlue Airways to find the best price.

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Tips to know when travelling to Seattle

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, Hawaiian Airlines, and Sun Country Airlines. Boston and Seattle have 51 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 Mon 15.04 - Sun 21.04

AirlineMon 15.04Tue 16.04Wed 17.04Thu 18.04Fri 19.04Sat 20.04Sun 21.04
2334244
1111111
---------------------

Weekly direct flights for Mon 22.04 - Sun 28.04

AirlineMon 22.04Tue 23.04Wed 24.04Thu 25.04Fri 26.04Sat 27.04Sun 28.04
4334444
1111111
---------------------

Weekly direct flights for Mon 29.04 - Sun 05.05

AirlineMon 29.04Tue 30.04Wed 01.05Thu 02.05Fri 03.05Sat 04.05Sun 05.05
4334444
11---1---11
------------1------

Weekly direct flights for Mon 06.05 - Sun 12.05

AirlineMon 06.05Tue 07.05Wed 08.05Thu 09.05Fri 10.05Sat 11.05Sun 12.05
4334444
1---11111
---1---------------

Check-in for a flight from Boston to Seattle

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
Alaska AirlinesASAASNoOpens 24 days before flight
Closes 1 hours before flight
United AirlinesUALUAYesNo
JetBlue AirwaysJBUB6NoOpens 24 days before flight
Closes 2 hours before flight
Hawaiian AirlinesHALHANoNo
Sun Country AirlinesSCXSYYesNo

Seattle travel tips

1) Stroll along the Seattle Waterfront area, local must-see
2) Explore Ballard, the historical neighbourhood of Seattle
3) Can we drink tap water in Seattle?

Weather in Seattle

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January7°C2°C
February8°C1°C
March10°C3°C
April13°C4°C
May18°C8°C
June21°C10°C
July25°C13°C
August26°C14°C
September22°C11°C
October15°C7°C
November10°C4°C
December6°C1°C
Hottest Month
26°C
August
Coldest month
1°C
February
Sunny days
250
days per year
Snow days
5
days per year

14 day forecast

Monday
22 Apr
15°C4°C
29 Apr
86%
9°C4°C
Tuesday
23 Apr
20°C5°C
30 Apr
12°C3°C
Wednesday
24 Apr
86%
15°C7°C
1 May
85%
12°C4°C
Thursday
25 Apr
75%
9°C8°C
2 May
85%
11°C7°C
Friday
26 Apr
89%
10°C8°C
3 May
82%
15°C7°C
Saturday
27 Apr
88%
14°C7°C
4 May
83%
9°C4°C
Sunday
28 Apr
80%
12°C5°C
5 May
86%
15°C2°C

Frequently asked questions

How long does it take to travel from Boston to Seattle?
What is the flight distance between Boston and Seattle?
What airlines offer nonstop (direct) flights between Boston and Seattle?
What are the most popular routes to and from Boston?
What are the most popular routes to and from Seattle?
What airports are near Boston?
What airports are near Seattle?
Is it possible to combine flights, buses, and trains in one itinerary when traveling between Boston and Seattle?
What is Virtual Interlining and how do I use it?
Which airlines fly between Boston and Seattle?
When's the best time to travel between Boston and Seattle?
What flights operate between Boston and Seattle?
How many airports are there near Boston?
How many airports are there near Seattle?
What time do nonstop (direct) flights between Boston and Seattle depart?
What time do nonstop (direct) flights between Boston and Seattle arrive?
What time do flights between Boston and Seattle depart?
What time do flights between Boston and Seattle arrive?

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Flights from Boston

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