Cheap flights from Boston, MA to San Francisco, CA

Flights starting at £65. Choose between Frontier Airlines, Spirit Airlines, or JetBlue Airways 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 Frontier Airlines, Spirit Airlines, JetBlue Airways, United Airlines, and Alaska Airlines. Boston and San Francisco have 305 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 Mon 01.04 - Sun 07.04

AirlineMon 01.04Tue 02.04Wed 03.04Thu 04.04Fri 05.04Sat 06.04Sun 07.04
4424331
4424441
211121---

Weekly direct flights for Mon 08.04 - Sun 14.04

AirlineMon 08.04Tue 09.04Wed 10.04Thu 11.04Fri 12.04Sat 13.04Sun 14.04
3221---1---
4421---21
21------2------

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
3444433
4444444
2111111

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
4444433
4444444
1111111

Check-in for a flight from Boston to San Francisco

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight
JetBlue AirwaysJBUB6NoOpens 24 days before flight
Closes 2 hours before flight
United AirlinesUALUAYesNo
Alaska AirlinesASAASNoOpens 24 days before flight
Closes 1 hours before flight

San Francisco travel tips

1) Visit de Young Art Museum in San Francisco for North and South American art
2) Head to Silicon Valley from San Francisco
3) Taste craft beer in San Francisco pubs

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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Flights from Boston

Flights to San Francisco

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