Cheap flights from Seattle, WA to Boston, MA

Flights starting at $100. Choose between Alaska Airlines, United Airlines, or JetBlue Airways to find the best price.

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Travelers usually depart from Seattle–Tacoma International, or Kenmore Air Harbor Seaplane Base when they travel from Seattle to Boston. The distance between Seattle and Boston is 4010 km. The most popular airlines for this route are Alaska Airlines, United Airlines, and JetBlue Airways. Seattle and Boston have 48 direct flights per week.

Weekly direct flights

Discover the top airlines offering direct flights from Seattle to Boston in the next month. You’ll find the number of daily direct flights per airline in the table.

Weekly direct flights for Sun 17.11 - Sat 23.11

AirlineSun 17.11Mon 18.11Tue 19.11Wed 20.11Thu 21.11Fri 22.11Sat 23.11
3333332
111---111

Weekly direct flights for Sun 24.11 - Sat 30.11

AirlineSun 24.11Mon 25.11Tue 26.11Wed 27.11Thu 28.11Fri 29.11Sat 30.11
3333132
1111111

Weekly direct flights for Sun 01.12 - Sat 07.12

AirlineSun 01.12Mon 02.12Tue 03.12Wed 04.12Thu 05.12Fri 06.12Sat 07.12
3222332
1111111

Weekly direct flights for Sun 08.12 - Sat 14.12

AirlineSun 08.12Mon 09.12Tue 10.12Wed 11.12Thu 12.12Fri 13.12Sat 14.12
3322332
1111111

Check-in for a flight from Seattle to Boston

NameCarrier codeIATA CodePassport needed during booking
Alaska AirlinesASAASNo
United AirlinesUALUAYes
JetBlue AirwaysJBUB6No

Weather in Boston

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January2°C-4°C
February3°C-3°C
March7°C0°C
April13°C5°C
May19°C10°C
June23°C14°C
July27°C18°C
August27°C18°C
September23°C14°C
October16°C9°C
November10°C3°C
December5°C0°C
Hottest Month
27°C
July
Coldest month
-4°C
January
Sunny days
261
days per year
Snow days
15
days per year

14 day forecast

Monday
18 Nov
14°C6°C
25 Nov
9°C3°C
Tuesday
19 Nov
14°C6°C
26 Nov
89%
5°C0°C
Wednesday
20 Nov
8°C2°C
27 Nov
4°C-1°C
Thursday
21 Nov
88%
10°C7°C
28 Nov
4°C1°C
Friday
22 Nov
83%
9°C4°C
29 Nov
6°C-1°C
Saturday
23 Nov
6°C2°C
30 Nov
6°C-2°C
Sunday
24 Nov
8°C5°C
1 Dec
11°C5°C

Frequently asked questions

How long does it take to travel from Seattle to Boston?
What is the flight distance between Seattle and Boston?
What airlines offer nonstop (direct) flights between Seattle and Boston?
What are the most popular routes to and from Seattle?
What are the most popular routes to and from Boston?
What airports are near Seattle?
What airports are near Boston?
Which airlines fly between Seattle and Boston?
When's the best time to travel between Seattle and Boston?
What flights operate between Seattle and Boston?
How many airports are there near Seattle?
How many airports are there near Boston?
What time do nonstop (direct) flights between Seattle and Boston depart?
What time do nonstop (direct) flights between Seattle and Boston arrive?
What time do flights between Seattle and Boston depart?
What time do flights between Seattle and Boston arrive?

Explore alternative trips

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