SFO - BOS

$188 Find Cheap Flights from San Francisco to Boston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Boston departing on 17/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Boston

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Boston, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Boston, as well as popular online travel agencies
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Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from San Francisco to Boston that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from San Francisco to Boston

Fri, 24 Oct - Tue, 28 Oct
Southwest Logo
21:05 - 10:00SFO-BOS
9h 55m1 stop
Southwest Logo
05:30 - 13:30BOS-SFO
11h 00m1 stop
$320Southwest
Find Deal
Tue, 30 Sep - Tue, 7 Oct
Southwest Logo
21:05 - 08:10SFO-BOS
8h 05m1 stop
Southwest Logo
07:50 - 15:00BOS-SFO
10h 10m2 stops
$323Southwest
Find Deal
Tue, 3 Feb - Tue, 17 Feb
Southwest Logo
06:05 - 20:50SFO-BOS
11h 45m2 stops
Southwest Logo
05:50 - 14:50BOS-SFO
12h 00m2 stops
$324Southwest
Find Deal
Tue, 7 Oct - Fri, 14 Nov
Southwest Logo
21:05 - 08:25SFO-BOS
8h 20m1 stop
Southwest Logo
06:10 - 14:05BOS-SFO
10h 55m1 stop
$326Southwest
Find Deal
Tue, 7 Oct - Tue, 11 Nov
Delta Logo
12:30 - 21:10SFO-BOS
5h 40mdirect
Delta Logo
16:45 - 20:41BOS-SFO
6h 56mdirect
$327Delta
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Fri, 24 Oct - Fri, 31 Oct
American Airlines Logo
21:35 - 10:14SFO-BOS
9h 39m1 stop
American Airlines Logo
05:24 - 12:29BOS-SFO
10h 05m1 stop
$329American Airlines
Find Deal
Tue, 4 Nov - Wed, 12 Nov
Alaska Airlines Logo
07:00 - 17:55SFO-BOS
7h 55m1 stop
Alaska Airlines Logo
18:59 - 22:50BOS-SFO
6h 51mdirect
$342Alaska Airlines
Find Deal
Tue, 7 Oct - Fri, 14 Nov
Delta Logo
12:30 - 21:10SFO-BOS
5h 40mdirect
Delta Logo
19:55 - 23:53BOS-SFO
6h 58mdirect
$357Delta
Find Deal
Tue, 4 Nov - Wed, 12 Nov
Alaska Airlines Logo
07:00 - 17:55SFO-BOS
7h 55m1 stop
Alaska Airlines Logo
07:00 - 15:43BOS-SFO
11h 43m1 stop
$371Alaska Airlines
Find Deal
Tue, 7 Oct - Fri, 14 Nov
United Airlines Logo
15:10 - 23:57SFO-BOS
5h 47mdirect
United Airlines Logo
05:30 - 11:29BOS-SFO
8h 59m1 stop
$372United Airlines
Find Deal

Everything you should know

When to book
3 weeks
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 16% price drop
October
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
$320
Overall average: $541
Southwest
Fri 24/10Tue 28/10
SFO - BOS • 1 stop
Cheapest direct flights
$327
Typical prices: $384-823
Delta
Tue 7/10Tue 11/11
SFO - BOS • Direct
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Boston!
Booking Insights

KAYAK's insights & trends for San Francisco to Boston flights

Get data-powered insights and trends into flights from San Francisco to Boston to help you find the cheapest flights, the best time to fly and much more.

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

The average price of all round-trip flights from San Francisco to Boston clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Boston on a Monday and more expensive on a Saturday. On your return trip to San Francisco, you should consider flying back on a Sunday, and avoid Thursdays for better deals.

What is the cheapest month to fly from San Francisco to Boston?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to Boston, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Francisco to Boston is January, where tickets cost $477 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $679 and $660 respectively.

How far in advance should I book a flight from San Francisco to Boston?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Francisco to Boston, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Francisco to Boston, you should book around 3 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$188
Best time to beat the crowds (16% less expensive on average)
Most popular time to fly and prices are also 5% lower on average.
Flight from San Francisco to Boston

When to book flights from San Francisco to Boston

Are your dates flexible? Find out the best times to travel from San Francisco to Boston based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Francisco to Boston

  • What are some good hotels near Logan International Airport?

    The Embassy Suites by Hilton is a solid choice that is only a 5-minute drive from Logan International Airport and a 15-minute drive from the popular Museum of Fine Arts. The Westin Boston Waterfront is a 4-star choice that is a 10-minute drive from the airport and a 5-minute walk from the waterfront.

  • Does Logan International Airport have pet relief areas?

    If you are traveling with a pet or service animal, make sure to let them relieve themselves after you have arrived at Logan International Airport. There is a pet relief area conveniently located outside of every Arrivals terminal, and travelers can get complimentary waste bags at each location.

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

    If you would like to grab a bite to eat before your flight takes off, make sure to browse through the different dining options at San Jose Mineta International Airport. Flames Eatery and Bar is a casual restaurant that is located in Terminal B and serves American-style meals, while Gordon Biersch Brewing Company is known for having an impressive craft beer selection. Jamba Juice and Peet’s Coffee and Tea are both convenient choices for travelers short on time that would like to purchase to-go items.

  • Does Logan International Airport have a prayer room?

    Logan International Airport is home to the Our Lady of the Airways Chapel that is located between Terminals B and C and is open to all travelers. The Chapel hosts Mass on Sundays and can be used for individual prayer when a ceremony is not occurring.

  • What is the cheapest flight from San Francisco to Boston?

    In the last 3 days, the lowest price for a flight from San Francisco to Boston was $125 for a one-way ticket and $212 for a return.

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

    When flying out of San Francisco you will be using San Francisco. You will be landing at Boston, also known as Boston Logan Intl.

  • Which airlines offer Wi-Fi service onboard planes from San Francisco to Boston?

    JetBlue, Alaska Airlines, Hawaiian Airlines, and American Airlines offer inflight Wi-Fi service on the San Francisco to Boston flight route.

  • Which aircraft models fly most regularly from San Francisco to Boston?

    The Boeing 737 MAX 9 is the aircraft model that flies most regularly on the San Francisco to Boston flight route.

  • Which airline alliances offer flights from San Francisco to Boston?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between San Francisco and Boston, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from San Francisco to Boston?

    There are direct flights from San Francisco to Boston on a daily basis.

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

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options 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?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from San Francisco is likely to change within 7 days, so travelers know whether to wait or book now.

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Boston with an airline and back to San Francisco with another airline.

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

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Boston from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from San Francisco to Boston

  • Looking for a cheap flight? 25% of our users found flights on this route for $435 or less one-way.
  • 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.

Prefer to fly direct from San Francisco to Boston Logan Intl?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from San Francisco to Boston Logan Intl.
Find which airlines fly direct from San Francisco Airport to Boston Logan Intl Airport, which days they fly and book direct flights.

Direct departures

San Francisco to Boston Logan Intl

Monday

Alaska Airlines, Delta, JetBlue, +1 more

Alaska Airlines, Delta, +2 more

Tuesday

Alaska Airlines, Delta, JetBlue, +1 more

Alaska Airlines, Delta, +2 more

Wednesday

Alaska Airlines, Delta, JetBlue, +1 more

Alaska Airlines, Delta, +2 more

Thursday

Alaska Airlines, Delta, JetBlue, +1 more

Alaska Airlines, Delta, +2 more

Friday

Alaska Airlines, Delta, JetBlue, +1 more

Alaska Airlines, Delta, +2 more

Saturday

Alaska Airlines, Delta, JetBlue, +1 more

Alaska Airlines, Delta, +2 more

Sunday

Alaska Airlines, Delta, JetBlue, +1 more

Alaska Airlines, Delta, +2 more

See more direct flights

Direct returns

Boston Logan Intl to San Francisco

Monday

Alaska Airlines, Delta, JetBlue, +1 more

Alaska Airlines, Delta, +2 more

Tuesday

Alaska Airlines, Delta, JetBlue, +1 more

Alaska Airlines, Delta, +2 more

Wednesday

Alaska Airlines, Delta, JetBlue, +1 more

Alaska Airlines, Delta, +2 more

Thursday

Alaska Airlines, Delta, JetBlue, +1 more

Alaska Airlines, Delta, +2 more

Friday

Alaska Airlines, Delta, JetBlue, +1 more

Alaska Airlines, Delta, +2 more

Saturday

Alaska Airlines, Delta, JetBlue, +1 more

Alaska Airlines, Delta, +2 more

Sunday

Alaska Airlines, Delta, JetBlue, +1 more

Alaska Airlines, Delta, +2 more

See more direct flights

Everything you need to know for your flight from San Francisco to Boston

Information on your arrival and departure airports

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