Find cheap flights from San Francisco to Boston

SFO - BOS

Find cheap flights from San Francisco to Boston

Round-trip
Economy
San Francisco (SFO)
Boston Logan Intl
Fri 8/7
Fri 8/14
Any month
Compare vs. KAYAK |
Search hundreds of travel sites at once for deals on flights to Boston

Good to know

Low season

February Best time to beat the crowds with an average 18% drop in price.

High season

December Most popular time to fly with an average 20% increase in price.

Average price of a round-trip

$346 (avg. price over the last 2 weeks)

Good deal for a round-trip

$319 or less

When to book flights from San Francisco to Boston

Estimated round-trip price
Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for finding a cheap flight

  • Looking for a cheap flight? 25% of our users found flights on this route for $208 or less.
  • The cheapest flight from San Francisco to Boston was found 68 days before departure, on average.
  • Book at least 3 weeks before departure in order to get a below-average price.
  • High season is considered to be November, December and January. The cheapest month to fly is February.
  • Morning departure is around 3% cheaper than an evening flight, on average*.
  • If you are interested in flights from San Francisco to Boston, there are three different airports that you can choose to fly out of. While San Francisco International Airport is the largest airport in the region and is closest to the city center, Oakland International Airport is another popular choice. San Jose Mineta International Airport is also a convenient option for anyone located south of San Francisco.
  • For those that would like a direct flight from San Francisco to Boston, consider booking your ticket with either JetBlue or Delta, as these companies are known for providing above-average legroom. If you are willing to have a connecting flight, consider booking with Southwest Airlines, as they allow travelers to check up to two bags for free.
  • To have a bit of extra help navigating San Francisco International Airport, look into hiring an Airport Butler. Airport Butlers are meant to provide assistance with carrying bags, checking in, finding your gate, and even personal shopping. They can be booked ahead of time through the airport’s website or directly at the check-in area.
  • Do you find flying to be stressful? Make sure to keep your eyes open for the San Francisco International Airport Wag Brigade. The Wag Brigade is made up of several trained dogs and a Juliana-breed pig, and they travel throughout the different terminals to say hi to travelers and relieve stress before boarding flights.
  • If you have some extra time to kill before your flight, consider purchasing an access pass for the Escape Lounge located in Oakland International Airport. This lounge is available to travelers from all airlines and provides complimentary snacks, access to televisions, and high-speed WiFi.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for booking San Francisco to Boston flights

Which airlines have a flexible cancellation policy for flights from San Francisco to Boston Logan Intl due to COVID-19?

Which airlines apply social distancing measures on flights from San Francisco to Boston Logan Intl due to COVID-19?

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

How many flights are there between San Francisco and Boston?

Which airlines provide the cheapest flights from San Francisco to Boston?

Do I need a passport to fly between San Francisco and Boston?

Which airlines fly most frequently between San Francisco and Boston?

What’s the cheapest day of the week to fly San Francisco to Boston?

Which airports will I be using when flying from San Francisco to Boston?

What are some good hotels near Logan International Airport?

Does Logan International Airport have pet relief areas?

What are some good dining options in San Jose Mineta International Airport?

Does Logan International Airport have a prayer room?

How does KAYAK find such low prices on flights from San Francisco to Boston?

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to Boston?

What is the Hacker Fare option on flights from San Francisco to Boston?

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to Boston?

Top airline flying San Francisco to Boston Logan Intl

Scores according to KAYAK customer reviews

7.3
Allegiant Air
Overall score based on 1,929 reviews
7.7
Boarding
7.0
Comfort
8.2
Crew
6.2
Entertainment
6.4
Food
Airline reviews
Read more about Allegiant Air

Book cheap flights from San Francisco to Boston

Recent round-trip flight deals

7/31
Fri
1 stop
Multiple Airlines
28h 18m
SFO - BOS
8/16
Sun
1 stop
Multiple Airlines
17h 34m
BOS - SFO
7/30
Thu
1 stop
Multiple Airlines
28h 18m
SFO - BOS
8/9
Sun
1 stop
Multiple Airlines
17h 34m
BOS - SFO
8/7
Fri
1 stop
Multiple Airlines
28h 23m
SFO - BOS
8/9
Sun
1 stop
Multiple Airlines
17h 34m
BOS - SFO
7/31
Fri
1 stop
Multiple Airlines
28h 18m
SFO - BOS
8/9
Sun
1 stop
Multiple Airlines
17h 34m
BOS - SFO
7/23
Thu
2 stops
Multiple Airlines
24h 11m
SFO - BOS
8/1
Sat
1 stop
Multiple Airlines
17h 34m
BOS - SFO
8/1
Sat
2 stops
Multiple Airlines
27h 30m
SFO - BOS
8/16
Sun
1 stop
Multiple Airlines
17h 34m
BOS - SFO
7/31
Fri
1 stop
Multiple Airlines
28h 18m
SFO - BOS
8/9
Sun
1 stop
Multiple Airlines
17h 34m
BOS - SFO
8/2
Sun
2 stops
Multiple Airlines
32h 14m
SFO - BOS
8/8
Sat
1 stop
Multiple Airlines
17h 34m
BOS - SFO
7/23
Thu
1 stop
Multiple Airlines
26h 21m
SFO - BOS
8/1
Sat
1 stop
Multiple Airlines
17h 34m
BOS - SFO
7/24
Fri
1 stop
Multiple Airlines
28h 18m
SFO - BOS
8/2
Sun
1 stop
Multiple Airlines
17h 34m
BOS - SFO
7/23
Thu
2 stops
Multiple Airlines
24h 11m
SFO - BOS
7/26
Sun
1 stop
Multiple Airlines
17h 40m
BOS - SFO
8/9
Sun
1 stop
Multiple Airlines
28h 23m
SFO - BOS
8/22
Sat
1 stop
Multiple Airlines
17h 34m
BOS - SFO
7/24
Fri
1 stop
Multiple Airlines
28h 18m
SFO - BOS
7/31
Fri
1 stop
Multiple Airlines
22h 16m
BOS - SFO
7/25
Sat
2 stops
Multiple Airlines
25h 58m
SFO - BOS
7/31
Fri
1 stop
Multiple Airlines
22h 16m
BOS - SFO
7/25
Sat
2 stops
Multiple Airlines
25h 58m
SFO - BOS
8/1
Sat
1 stop
Multiple Airlines
17h 34m
BOS - SFO
7/30
Thu
2 stops
Multiple Airlines
10h 33m
SFO - BOS
7/31
Fri
1 stop
Multiple Airlines
22h 16m
BOS - SFO
7/31
Fri
2 stops
Multiple Airlines
16h 00m
SFO - BOS
8/9
Sun
1 stop
Multiple Airlines
17h 34m
BOS - SFO
7/23
Thu
2 stops
Multiple Airlines
24h 11m
SFO - BOS
7/30
Thu
2 stops
Multiple Airlines
27h 35m
BOS - SFO
8/14
Fri
1 stop
Multiple Airlines
28h 23m
SFO - BOS
8/23
Sun
1 stop
Multiple Airlines
17h 34m
BOS - SFO
7/27
Mon
2 stops
Multiple Airlines
12h 26m
SFO - BOS
8/2
Sun
1 stop
Multiple Airlines
17h 34m
BOS - SFO
Show more results

Search by stops

Recent one-way flight deals

9/15
Tue
1 stop
Multiple Airlines
15h 39m
SFO - BOS
8/1
Sat
3 stops
Allegiant Air
22h 35m
SFO - BOS
7/23
Thu
1 stop
Multiple Airlines
26h 21m
SFO - BOS
8/23
Sun
1 stop
Multiple Airlines
28h 23m
SFO - BOS
7/27
Mon
1 stop
Multiple Airlines
100h 18m
SFO - BOS
7/30
Thu
1 stop
Multiple Airlines
52h 18m
SFO - BOS
8/21
Fri
1 stop
Multiple Airlines
28h 23m
SFO - BOS
7/30
Thu
1 stop
Multiple Airlines
28h 18m
SFO - BOS
8/23
Sun
1 stop
Multiple Airlines
28h 23m
SFO - BOS
8/6
Thu
1 stop
Multiple Airlines
28h 23m
SFO - BOS
8/7
Fri
1 stop
Multiple Airlines
28h 23m
SFO - BOS
8/7
Fri
1 stop
Multiple Airlines
28h 23m
SFO - BOS
7/31
Fri
2 stops
Multiple Airlines
18h 29m
SFO - BOS
7/24
Fri
2 stops
Multiple Airlines
18h 29m
SFO - BOS
9/4
Fri
1 stop
Multiple Airlines
28h 23m
SFO - BOS
8/1
Sat
2 stops
Multiple Airlines
15h 45m
SFO - BOS
8/1
Sat
2 stops
Multiple Airlines
27h 30m
SFO - BOS
7/25
Sat
2 stops
Multiple Airlines
25h 58m
SFO - BOS
8/14
Fri
1 stop
Multiple Airlines
28h 23m
SFO - BOS
8/3
Mon
2 stops
Multiple Airlines
26h 18m
SFO - BOS
Show more results
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

^
The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.
-
1
  • Round-trip
  • One-way
  • Multi-city
  • Trip Builder
  • Economy
  • Premium Economy
  • Business
  • First
  • Multiple
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First