Cheap flights from San Francisco, CA to Boston, MA

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

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The distance between San Francisco and Boston is 4347 km. The most popular airlines for this route are United Airlines, JetBlue Airways, Alaska Airlines, and TAP Portugal. San Francisco and Boston have 81 direct flights per week.

Weekly direct flights

Discover the top airlines offering direct flights from San Francisco 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 14.04 - Sat 20.04

AirlineSun 14.04Mon 15.04Tue 16.04Wed 17.04Thu 18.04Fri 19.04Sat 20.04
344---4---2
444---4------
211---1---1

Weekly direct flights for Sun 21.04 - Sat 27.04

AirlineSun 21.04Mon 22.04Tue 23.04Wed 24.04Thu 25.04Fri 26.04Sat 27.04
---144222
---345544
1---11111

Weekly direct flights for Sun 28.04 - Sat 04.05

AirlineSun 28.04Mon 29.04Tue 30.04Wed 01.05Thu 02.05Fri 03.05Sat 04.05
1345443
2334454
------11221

Weekly direct flights for Sun 05.05 - Sat 11.05

AirlineSun 05.05Mon 06.05Tue 07.05Wed 08.05Thu 09.05Fri 10.05Sat 11.05
5544---43
4444---44
2112---21

Check-in for a flight from San Francisco to Boston

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
United AirlinesUALUAYesNo
JetBlue AirwaysJBUB6NoOpens 24 days before flight
Closes 2 hours before flight
Alaska AirlinesASAASNoOpens 24 days before flight
Closes 1 hours before flight
TAP PortugalTAPTPNoOpens 36 days before flight
Closes 1 hours before flight

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
October17°C9°C
November10°C3°C
December5°C0°C
Hottest Month
27°C
July
Coldest month
-4°C
January
Sunny days
259
days per year
Snow days
14
days per year

14 day forecast

Wednesday
10 Apr
95%
16°C5°C
17 Apr
82%
11°C7°C
Thursday
11 Apr
95%
14°C8°C
18 Apr
87%
8°C6°C
Friday
12 Apr
87%
16°C10°C
19 Apr
66%
20°C7°C
Saturday
13 Apr
86%
10°C7°C
20 Apr
74%
12°C8°C
Sunday
14 Apr
15°C5°C
21 Apr
87%
11°C5°C
Monday
15 Apr
17°C7°C
22 Apr
88%
13°C5°C
Tuesday
16 Apr
18°C7°C
23 Apr
82%
15°C6°C

Frequently asked questions

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

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