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Cheap flights from Boston to San Francisco (BOS - SFO)

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The best prices from Boston to San Francisco are usually found in September or February, booked 56 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

$400
$360
$320
$277
Price
$277 - $382
Temperature
59 - 77 °F
Rainfall
0 - 5 inches
Most popular in July High demand for flights, 13% potential price rise
Cheapest in September Best time to find cheap flights, 2% potential price drop
Average price $359 Price for this month
Cheapest price $277 From Boston to San Francisco

Boston to San Francisco 2020 flight deals

Cheap flights to San Francisco from Boston found for this year
26 Feb - 28 Feb
$183pp
BOS
Boston Logan Intl
Major Airline
Non-Stop
SFO
San Francisco
SFO
San Francisco
Major Airline
Non-Stop
BOS
Boston Logan Intl
18 Feb - 24 Feb
$187pp
BOS
Boston Logan Intl
Major Airline
Non-Stop
SFO
San Francisco
SFO
San Francisco
Major Airline
Non-Stop
BOS
Boston Logan Intl
25 Feb - 27 Feb
$187pp
BOS
Boston Logan Intl
Major Airline
Non-Stop
SFO
San Francisco
SFO
San Francisco
Major Airline
Non-Stop
BOS
Boston Logan Intl

Last minute flights from Boston to San Francisco

Late deals on round-trip flights to San Francisco from Boston, departing today and this week
10 Dec - 10 Jan
$450pp
BOS
Boston Logan Intl
JetBlue
 
1 STOP
SFO
San Francisco
SFO
San Francisco
JetBlue
Non-Stop
BOS
Boston Logan Intl
12 Dec - 5 Jan
$455pp
BOS
Boston Logan Intl
Delta
Non-Stop
SFO
San Francisco
SFO
San Francisco
Delta
 
1 STOP
BOS
Boston Logan Intl
8 Dec - 12 Dec
$488pp
BOS
Boston Logan Intl
Major Airline
 
1 STOP
SFO
San Francisco
SFO
San Francisco
Major Airline
 
1 STOP
BOS
Boston Logan Intl

Alternative routes for Boston to San Francisco

Destination information for San Francisco

Things to know before you go. Useful info for your trip from Boston to San Francisco
Flight duration
6h 17m
Average temperature for December in San Francisco
59.0 °F
Avg rainfall for December in San Francisco
4.7 ″

Airports servicing Boston

Airports servicing San Francisco

Weekly flight availability
from Boston to San Francisco
Sunday
29 daily flights
Monday
32 daily flights
Tuesday
25 daily flights
Wednesday
31 daily flights
Thursday
37 daily flights
Friday
35 daily flights
Saturday
16 daily flights

Related info for your journey

Useful info, stats and facts about Boston to San Francisco flights.

Flight FAQs

From Boston to San Francisco

What days are nonstop flights available from Boston to San Francisco?

Nonstop flights can be found on the following days: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday.

How popular is this flight route?

Flights from Boston Logan Intl to San Francisco have been viewed 254 times in the past calendar month.

What percent of flights are delayed?

When booking remember that flights Boston to San Francisco are typically delayed by 73min. so prepare as needed.

How many passenger seats are available on a flight on this route?

Expect 1,627 seats to be available on average per day for flights from Boston Logan Intl to San Francisco.

What is the cheapest airline for this route?

United Air Lines Inc. offers the cheapest flights from Boston to San Francisco. Per day you can find on average 140 flights for this route and airline.

How long does the flight from Boston to San Francisco take?

A nonstop flight takes up to 7 hours, covering a distance of 1,685 miles.

How many flights depart from Boston to San Francisco on average per day?

On average, you can expect to see 64 flights from Boston Logan Intl to San Francisco a day.
Early Morning (Midnight to 6am) - 17% of flight departures
Morning (6am - Noon) - 20% of flight departures
Afternoon (Noon - 6pm) - 39% of flight departures
Evening (6pm - Midnight) - 23% of flight departures

Does it rain more in Boston or San Francisco?

Expected rainfall in Boston is more than in San Francisco. You can expect this to be the case over the next 14 days.

Is Boston weather warmer or cooler than San Francisco?

Temperatures around the 84 °F's can be experienced in July. The weather in San Francisco is colder than in Boston. Plan for potential changes in flight availability as peak weather approaches in this location.