Cheap flights from Boston to San Francisco from $139

Trusted by millions

Kiwi.com Guarantee for stress-free travel

One search, all the best deals

Explore flight deals to San Francisco

Direct
Wed, Jul 23
Boston BOSSan Francisco SFO

$139
Search
Direct
Wed, Jul 23
Boston BOSSan Francisco SFO

$139
Search
Direct
Wed, Jul 23
Boston BOSSan Francisco SFO

$139
Search
Direct
Fri, Jul 25
Boston BOSSan Francisco SFO

$140
Search
Direct
Tue, Jul 22
Boston BOSSan Francisco SFO

$145
Search
Direct
Tue, Jul 22
Boston BOSSan Francisco SFO

$145
Search

Prices updated:

Direct
Fri, Jul 25 – Tue, Jul 29
Boston BOSSan Francisco SFO

$274
Search
Direct
Fri, Jul 25 – Tue, Jul 29
Boston BOSSan Francisco SFO

$274
Search
Direct
Wed, Jul 23 – Tue, Jul 29
Boston BOSSan Francisco SFO

$275
Search
Direct
Fri, Jul 25 – Tue, Jul 29
Boston BOSSan Francisco SFO

$280
Search
Direct
Fri, Jul 25 – Tue, Jul 29
Boston BOSSan Francisco SFO

$280
Search
Direct
Fri, Jul 25 – Tue, Jul 29
Boston BOSSan Francisco SFO

$280
Search

Prices updated:

Key info about flying to San Francisco

Depart from
Logan International
Arrive to
San Francisco International
Average flights per week
128
Flight distance
4347 km
Worth visiting
Alcatraz - Golden Gate Bridge - Big Sur

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 chart.

AirlineSun 29.06Mon 30.06Tue 01.07Wed 02.07Thu 03.07Fri 04.07Sat 05.07
------------442
---------------------
------------212
------------1---1
Weekly flights: 17 totalDaily flights: 2.43 averageMost flights: Thursday 4 flights
AirlineSun 06.07Mon 07.07Tue 08.07Wed 09.07Thu 10.07Fri 11.07Sat 12.07
------44442
---------4221
------12222
------12222
Weekly flights: 45 totalDaily flights: 6.43 averageMost flights: Tuesday 4 flights
AirlineSun 13.07Mon 14.07Tue 15.07Wed 16.07Thu 17.07Fri 18.07Sat 19.07
---235354
---344222
122---222
---------2---------
Weekly flights: 52 totalDaily flights: 7.43 averageMost flights: Wednesday 5 flights
AirlineSun 20.07Mon 21.07Tue 22.07Wed 23.07Thu 24.07Fri 25.07Sat 26.07
3345544
1454221
2121221
---1---1---------
Weekly flights: 60 totalDaily flights: 8.57 averageMost flights: Wednesday 5 flights

Check-in for a flight from Boston to San Francisco

NameCarrier codeIATA CodePassport needed during booking
United AirlinesUALUANo
JetBlue AirwaysJBUB6No
Hawaiian AirlinesHALHANo
Alaska AirlinesASAASNo
Sun Country AirlinesSCXSYYes

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
May18°C10°C
June20°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
333
days per year

14 day forecast

Friday
4 Jul
15°C11°C
11 Jul
19°C13°C
Saturday
5 Jul
14°C11°C
12 Jul
19°C13°C
Sunday
6 Jul
13°C11°C
13 Jul
18°C13°C
Monday
7 Jul
14°C10°C
14 Jul
19°C13°C
Tuesday
8 Jul
18°C13°C
15 Jul
19°C13°C
Wednesday
9 Jul
19°C12°C
16 Jul
18°C13°C
Thursday
10 Jul
21°C12°C
17 Jul
17°C12°C
The distance between Boston and San Francisco is 4347 km. The most popular airlines for this route are United Airlines, JetBlue Airways, Hawaiian Airlines, Alaska Airlines, and Sun Country Airlines. Boston and San Francisco have 128 direct flights per week. When you arrive at San Francisco, consider visiting Alcatraz, Golden Gate Bridge, and Big Sur.

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?
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?

Explore alternative trips

Flights from Boston

Flights to San Francisco

Popular routes

The nearest countries with flights to San Francisco

Here is a list of countries people are flying from

Other destination countries from Boston

Here is a list of countries people are flying to

Download our app

Start your next adventure now. Download our app and explore cheap flights effortlessly!

Find the best connection from Boston to San Francisco
Search flights

We hack the system,
you fly for less