Find flights
Deals
Insights
When to book
FAQs & Tips
Direct Flights

SFO - BOS

Find cheap flights from San Francisco to Boston from $145

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 8/5. 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
Thu 18/4
Thu 25/4

Search 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
In the last 7 days, travellers have searched 47,600,107 times on KAYAK, and here's why:

Save 15% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheap flight deals from San Francisco to Boston

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip 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.
07:00 - 15:45SFO-BOS
5h 45mdirect
07:45 - 11:30BOS-SFO
6h 45mdirect
$288Delta
Find Deal
Tue, 7 May - Wed, 8 May
22:05 - 06:44SFO-BOS
5h 39mdirect
07:45 - 11:30BOS-SFO
6h 45mdirect
$309Delta
Find Deal
Tue, 9 Apr - Wed, 15 May
22:35 - 07:30SFO-BOS
5h 55mdirect
16:36 - 23:28BOS-SFO
9h 52m1 stop
$329Alaska Airlines
Find Deal
Wed, 1 May - Tue, 7 May
06:00 - 14:48SFO-BOS
5h 48mdirect
06:20 - 09:55BOS-SFO
6h 35mdirect
$343JetBlue
Find Deal
Sun, 14 Apr - Sun, 19 May
20:15 - 05:00SFO-BOS
5h 45mdirect
06:20 - 09:55BOS-SFO
6h 35mdirect
$350JetBlue
Find Deal
Tue, 9 Apr - Thu, 25 Apr
22:40 - 07:29SFO-BOS
5h 49mdirect
16:36 - 23:28BOS-SFO
9h 52m1 stop
$357Alaska Airlines
Find Deal
Sun, 14 Apr - Tue, 23 Apr
17:50 - 10:33SFO-BOS
13h 43m1 stop
09:00 - 13:09BOS-SFO
31h 09m1 stop
$510Sun Country Air
Find Deal
Fri, 31 May - Mon, 3 Jun
00:12 - 11:25SFO-BOS
8h 13mdirect
09:50 - 17:03BOS-SFO
10h 13m1 stop
$530United Airlines
Find Deal
Mon, 12 Aug - Tue, 20 Aug
23:59 - 10:33SFO-BOS
7h 34m1 stop
09:00 - 13:09BOS-SFO
31h 09m1 stop
$549Sun Country Air
Find Deal
Thu, 30 May - Mon, 3 Jun
00:09 - 12:53SFO-BOS
9h 44m1 stop
06:15 - 09:57BOS-SFO
6h 42mdirect
$568United Airlines
Find Deal
Mon, 29 Apr - Wed, 8 May

Flights from San Francisco to Boston - Travel Insights & Trends

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 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 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 $395 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $794 and $759 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for 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 month.
To get a below average price on the flight from San Francisco to Boston, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 31 days before departure.

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

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from San Francisco to Boston found by KAYAK users in the last 72 hours was for $288 on Delta, followed by Alaska Airlines ($329). One-way flight deals have also been found from as low as $145 on Delta and from $172 on JetBlue.

Which airlines fly most frequently between San Francisco and Boston?

United Airlines (5 flights per day), JetBlue (4 flights per day), and Alaska Airlines (2 flights per day) are the most frequent flyers of this route.

How many flights are there between San Francisco and Boston per day?

Each day, there are between 14 and 18 nonstop flights that take off from San Francisco and land in Boston, with an average flight time of 5h 42m. The most common departure time is 07:00 and most flights take off in the morning. Each week, there are 109 flights. The most frequent day of departure is Tuesday, when 17% of all weekly flights depart. The fewest flights depart on a Wednesday.

Which cabin class options are there for flights between San Francisco and Boston?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 3 cabin class options for the route. These are Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

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

Direct flights cover the 6,981 km separating San Francisco and Boston in about 5h 35m.

What’s the earliest departure time from San Francisco to Boston?

Early birds can take the earliest flight from San Francisco at 05:30 and will be landing in Boston at 14:07.

What’s the latest departure time from San Francisco to Boston?

If you prefer to fly at night, the latest flight from San Francisco to Boston jets off at 23:59 and lands at 08:50.

Good to know

Low season

January

High season

July

Cheapest flight

$145
Best time to beat the crowds (36% less expensive on average)
Most popular time to fly (24% more expensive 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 $95 for a one-way ticket and $189 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, Delta, American Airlines, and KLM 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 Airbus A318/A319/A320/A321 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 oneworld 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.

See more FAQs

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 $393 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.
See more tips

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

Find which airlines fly direct from San Francisco to Logan Intl, which days they fly and book direct flights.

Direct departures

San Francisco to Boston Logan Intl

Monday

ANA, Air New Zealand, Alaska Airlines, +18 more

ANA, Air New Zealand, +19 more

Tuesday

ANA, Air New Zealand, Alaska Airlines, +19 more

ANA, Air New Zealand, +20 more

Wednesday

ANA, Air China, Air New Zealand, +17 more

ANA, Air China, +18 more

Thursday

ANA, Air New Zealand, Alaska Airlines, +18 more

ANA, Air New Zealand, +19 more

Friday

ANA, Air New Zealand, Alaska Airlines, +18 more

ANA, Air New Zealand, +19 more

Saturday

ANA, Air China, Air New Zealand, +18 more

ANA, Air China, +19 more

Sunday

ANA, Air New Zealand, Alaska Airlines, +20 more

ANA, Air New Zealand, +21 more

See more direct flights

Direct returns

Boston Logan Intl to San Francisco

Monday

ANA, Air New Zealand, Alaska Airlines, +18 more

ANA, Air New Zealand, +19 more

Tuesday

ANA, Air New Zealand, Alaska Airlines, +18 more

ANA, Air New Zealand, +19 more

Wednesday

ANA, Air China, Air New Zealand, +19 more

ANA, Air China, +20 more

Thursday

ANA, Air New Zealand, Alaska Airlines, +18 more

ANA, Air New Zealand, +19 more

Friday

ANA, Air New Zealand, Alaska Airlines, +18 more

ANA, Air New Zealand, +19 more

Saturday

ANA, Air China, Air New Zealand, +18 more

ANA, Air China, +19 more

Sunday

ANA, Air New Zealand, Alaska Airlines, +19 more

ANA, Air New Zealand, +20 more

See more direct flights
See more direct flights

Book cheap flights from San Francisco to Boston

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from San Francisco to Boston found on KAYAK in the last 72 hours.
8/5Wed
directDelta
5h 45mSFO-BOS
$145
8/5Wed
directDelta
5h 45mSFO-BOS
$152
8/4Mon
2 stops
37h 00mSFO-BOS
$171
16/4Tue
directJetBlue
5h 48mSFO-BOS
$172
9/4Tue
1 stopAmerican Airlines
8h 35mSFO-BOS
$180
8/9Sun
directJetBlue
5h 35mSFO-BOS
$184
9/4Tue
2 stops
15h 49mSFO-BOS
$186
24/4Wed
1 stopAlaska Airlines
8h 34mSFO-BOS
$200
16/7Tue
directAlaska Airlines
5h 36mSFO-BOS
$242
11/4Thu
1 stopAmerican Airlines
8h 15mSFO-BOS
$259

Search by stops

Search by airline

Search by price

Last minute flights from San Francisco to Boston

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from San Francisco to Boston that are departing in the next 10 days.
22/3Fri
multi-stopDelta
9h 40mSFO-BOS
1/4Mon
directDelta
7h 10mBOS-SFO
$616
19/3Tue
directJetBlue
5h 37mSFO-BOS
28/3Thu
directJetBlue
6h 41mBOS-SFO
$625
22/3Fri
directAlaska Airlines
5h 49mSFO-BOS
1/4Mon
directAlaska Airlines
6h 58mBOS-SFO
$673
22/3Fri
directAlaska Airlines
5h 49mSFO-BOS
1/4Mon
multi-stopAlaska Airlines
9h 07mBOS-SFO
$756
19/3Tue
multi-stopSouthwest
11h 35mSFO-BOS
21/3Thu
multi-stopSouthwest
10h 45mBOS-SFO
$760
23/3Sat
multi-stopUnited Airlines
8h 52mSFO-BOS
1/4Mon
directUnited Airlines
6h 42mBOS-SFO
$840
19/3Tue
multi-stopUnited Airlines
11h 59mSFO-BOS
21/3Thu
multi-stopUnited Airlines
10h 19mBOS-SFO
$846
19/3Tue
multi-stopAmerican Airlines
10h 42mSFO-BOS
21/3Thu
multi-stopAmerican Airlines
11h 39mBOS-SFO
$893
23/3Sat
multi-stopAmerican Airlines
7h 55mSFO-BOS
30/3Sat
multi-stopAmerican Airlines
9h 23mBOS-SFO
$984
19/3Tue
multi-stopSouthwest
26h 00mSFO-BOS
21/3Thu
multi-stopSouthwest
19h 30mBOS-SFO
$1,662

Search by stops

Search by airline

Search by price

San Francisco - Boston Flights

Departure:

San Francisco (SFO)United States

Destination:

Boston (BOS)United States

Return flight deals:

Boston - San Francisco

Cabin classes:

$1,013

Browse origins:

  • Flights » 
  • San Francisco

Browse destinations:

  • Flights » 
  • Worldwide » 
  • Boston