Cheap flights from Boston, MA to San Francisco, CA

Flights starting at $104. Choose between JetBlue Airways, United Airlines, or Alaska Airlines to find the best price.

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Tips to know when travelling to San Francisco

The distance between Boston and San Francisco is 4347 km. The most popular airlines for this route are JetBlue Airways, United Airlines, Alaska Airlines, and TAP Portugal. Boston and San Francisco have 74 direct flights per week. When you arrive at San Francisco, consider visiting Alcatraz, Big Sur, and Golden Gate Bridge.

Weekly direct flights

Discover the top airlines offering direct flights from Boston to San Francisco 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
---344412
14444---3
---211111

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
---232343
1444444
---111111

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
1444543
4444334
1111222

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
------35553
1---43334
------11222

Check-in for a flight from Boston to San Francisco

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

Weather in San Francisco

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January14°C7°C
February15°C8°C
March15°C8°C
April17°C9°C
May19°C10°C
June21°C12°C
July22°C13°C
August22°C14°C
September23°C14°C
October21°C13°C
November17°C10°C
December13°C8°C
Hottest Month
23°C
September
Coldest month
7°C
January
Sunny days
332
days per year

14 day forecast

Thursday
4 Apr
99%
11°C7°C
11 Apr
19°C13°C
Friday
5 Apr
92%
11°C6°C
12 Apr
17°C12°C
Saturday
6 Apr
12°C8°C
13 Apr
14°C11°C
Sunday
7 Apr
13°C8°C
14 Apr
16°C10°C
Monday
8 Apr
15°C8°C
15 Apr
17°C10°C
Tuesday
9 Apr
19°C11°C
16 Apr
15°C11°C
Wednesday
10 Apr
20°C13°C
17 Apr
13°C10°C

Frequently asked questions

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

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