Cheap flights from Seattle, WA to Boston, MA

Flights starting at $109. Choose between United Airlines, Alaska Airlines, or JetBlue Airways to find the best price.

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Key info about flying to Boston

Depart from
Seattle–Tacoma International
Arrive to
Logan International
Average flights per week
49
Flight distance
4010 km
Worth visiting
Cape Cod

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 chart.

AirlineSun 15.12Mon 16.12Tue 17.12Wed 18.12Thu 19.12Fri 20.12Sat 21.12
---------1332
------------111
Weekly flights: 12 totalDaily flights: 1.71 averageMost flights: Thursday 3 flights
AirlineSun 22.12Mon 23.12Tue 24.12Wed 25.12Thu 26.12Fri 27.12Sat 28.12
3333332
111---------1
Weekly flights: 24 totalDaily flights: 3.43 averageMost flights: Sunday 3 flights
AirlineSun 29.12Mon 30.12Tue 31.12Wed 01.01Thu 02.01Fri 03.01Sat 04.01
3333332
1111111
Weekly flights: 27 totalDaily flights: 3.86 averageMost flights: Sunday 3 flights
AirlineSun 05.01Mon 06.01Tue 07.01Wed 08.01Thu 09.01Fri 10.01Sat 11.01
2211222
---111111
Weekly flights: 18 totalDaily flights: 2.57 averageMost flights: Sunday 2 flights

Check-in for a flight from Seattle to Boston

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

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
16 Dec
4°C-1°C
23 Dec
-3°C-8°C
Tuesday
17 Dec
67%
12°C4°C
24 Dec
85%
5°C-2°C
Wednesday
18 Dec
82%
5°C1°C
25 Dec
64%
5°C1°C
Thursday
19 Dec
83%
7°C0°C
26 Dec
63%
11°C3°C
Friday
20 Dec
87%
1°C-1°C
27 Dec
7°C2°C
Saturday
21 Dec
21%
0°C-3°C
28 Dec
4°C1°C
Sunday
22 Dec
-4°C-6°C
29 Dec
6°C3°C
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 United Airlines, Alaska Airlines, JetBlue Airways, and American Airlines. Seattle and Boston have 49 direct flights per week.

Frequently asked questions

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