SFO - BOS

C$ 185 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 11/1. 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, 0 bags

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
Travellers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
C$ 306
Overall average: C$ 447
JetBlue
Wed 7/1Wed 7/1
SFO - BOS • Direct
Cheapest one-way flights
C$ 185
Typical prices: C$ 225-C$ 434
United Airlines
Sun 11/1
SFO - BOS • 1 stop
Our travellers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
JetBlue offers free Wi-Fi and live TV on all flights.
Take the free Silver Line from BOS to central Boston.
Expert advice
Expert advice
Expert advice
Expert advice
When to book
3 weeks
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 35% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 15% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Boston!
Flight Deals
Booking Insights
Expert advice
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 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Francisco to Boston

Wed, 7 Jan - Wed, 7 Jan
JetBlue Logo
8:26 a.m. - 5:05 p.m.
SFO
-
BOS
5h 39mdirect
JetBlue Logo
7:09 p.m. - 10:59 p.m.
BOS
-
SFO
6h 50mdirect
C$ 306JetBlue
Thu, 8 Jan - Wed, 14 Jan
Delta Logo
7:10 a.m. - 3:51 p.m.
SFO
-
BOS
5h 41mdirect
Delta Logo
7:50 a.m. - 11:50 a.m.
BOS
-
SFO
7h 00mdirect
C$ 313Delta
Tue, 13 Jan - Tue, 20 Jan
Southwest Logo
9:50 a.m. - 10:30 p.m.
SFO
-
BOS
9h 40m1 stop
Southwest Logo
6:50 a.m. - 2:20 p.m.
BOS
-
SFO
10h 30m2 stops
C$ 320Southwest
Wed, 28 Jan - Sat, 31 Jan
United Airlines Logo
11:05 a.m. - 7:51 p.m.
SFO
-
BOS
5h 46mdirect
United Airlines Logo
12:45 p.m. - 7:09 p.m.
BOS
-
SFO
9h 24m1 stop
C$ 327United Airlines
Tue, 13 Jan - Tue, 17 Feb
JetBlue Logo
3:25 p.m. - 11:58 p.m.
SFO
-
BOS
5h 33mdirect
JetBlue Logo
8:33 p.m. - 12:25 a.m.
BOS
-
SFO
6h 52mdirect
C$ 331JetBlue
Thu, 8 Jan - Thu, 8 Jan
JetBlue Logo
8:26 a.m. - 5:05 p.m.
SFO
-
BOS
5h 39mdirect
JetBlue Logo
7:09 p.m. - 10:59 p.m.
BOS
-
SFO
6h 50mdirect
C$ 334JetBlue
Tue, 13 Jan - Wed, 14 Jan
JetBlue Logo
10:37 p.m. - 12:13 p.m.
SFO
-
BOS
10h 36m1 stop
JetBlue Logo
3:05 p.m. - 6:55 p.m.
BOS
-
SFO
6h 50mdirect
C$ 338JetBlue
Wed, 7 Jan - Tue, 13 Jan
Delta Logo
4:03 p.m. - 6:14 a.m.
SFO
-
BOS
11h 11m1 stop
Delta Logo
7:50 a.m. - 11:50 a.m.
BOS
-
SFO
7h 00mdirect
C$ 339Delta
Mon, 12 Jan - Fri, 16 Jan
United Airlines Logo
11:05 a.m. - 7:51 p.m.
SFO
-
BOS
5h 46mdirect
United Airlines Logo
1:50 p.m. - 5:45 p.m.
BOS
-
SFO
6h 55mdirect
C$ 341United Airlines
Tue, 13 Jan - Thu, 15 Jan
JetBlue Logo
3:25 p.m. - 11:58 p.m.
SFO
-
BOS
5h 33mdirect
JetBlue Logo
5:15 a.m. - 2:12 p.m.
BOS
-
SFO
11h 57m1 stop
C$ 345JetBlue
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.

If your flying dates are flexible, you should consider flying to Boston on a Sunday, as we generally find the cheapest rates on that day for this route. On the other hand, Thursday is the most expensive day to fly from San Francisco to Boston. For your return ticket, we recommend flying on a Sunday and avoiding Fridays for the best 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 C$ 447 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is C$ 637 and C$ 610 respectively.

Can I save money by flying with a layover from San Francisco to Boston?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at C$ 318 on average.

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 35% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Expert advice

Expert advice for your flight from San Francisco to Boston

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
JetBlue

JetBlue provides free gate-to-gate Wi-Fi and live TV channels on all flights, enhancing entertainment.


JetBlue's Even More Space upgrade offers up to 18 cm extra legroom and priority boarding.

Delta

Delta offers free Wi-Fi for SkyMiles members on domestic flights, enhancing in-flight connectivity.


Delta's Sky Priority check-in speeds up the process for premium cabin and elite status passengers.

Airports
SFO

For a quick departure, use SFO's curbside check-in available for United, Delta, and Southwest passengers.

BOS

Take the free Silver Line from BOS to South Station for a budget-friendly, 20-30 minute ride to central Boston.

Our travel experts
Harriet Baskas

Harriet Baskas

Expert on JetBlue

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on Delta

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Blane Bachelor

Blane Bachelor

Expert on BOS and SFO

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more

Good to know

Low seasonJanuary
Cheapest flightC$ 185
Best time to beat the crowds (15% less expensive on average)
Most popular time to fly (12% 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 round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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 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 C$ 185 for a one-way ticket and C$ 306 for a round-trip.

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

    JetBlue, Alaska Airlines, American Airlines, United Airlines, and Lufthansa 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 A321neo is the aircraft model that flies most regularly on the San Francisco to Boston flight 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 round-trip 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.

Prefer to fly direct from San Francisco to Boston?

 
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

Delta,JetBlue,United Airlines

Delta,JetBlue, +1 more

Thursday

Delta,JetBlue,United Airlines

Delta,JetBlue, +1 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 nonstop 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

Delta,JetBlue,United Airlines

Delta,JetBlue, +1 more

Thursday

Delta,JetBlue,United Airlines

Delta,JetBlue, +1 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 nonstop flights

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

Information on your arrival and departure airports