Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from San Francisco to Boston from $89

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Boston departing on 1/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Deals available from 900+ travel sites.

"This year, momondo is the #1 place for airfares on the internet."
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? to track prices.

Find the cheapest flights from San Francisco to Boston

Cheap round-trip flights

These are some of the best round-trip flight deals from San Francisco to Boston that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from San Francisco to Boston.

Cheap last minute flights

Planning a quick getaway from San Francisco to Boston? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Boston, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from San Francisco to Boston

Find recent round-trip train or bus tickets from San Francisco to Boston.

All round-trip flight deals to Boston

The cheapest plane tickets to Boston found on KAYAK recently.
11:10 pm - 7:53 amSFO-BOS
5h 43mnonstop
11:00 am - 2:51 pmBOS-SFO
6h 51mnonstop
$177United Airlines
Find Deal
Sun, Jan 12 - Thu, Jan 16
10:00 am - 11:59 pmSFO-BOS
10h 59m1 stop
12:56 pm - 7:50 pmBOS-SFO
9h 54m1 stop
Thu, Jan 23 - Mon, Jan 27
1:15 pm - 9:54 pmSFO-BOS
5h 39mnonstop
5:50 pm - 9:56 pmBOS-SFO
7h 06mnonstop
$197Delta
Find Deal
Fri, Jan 24 - Wed, Jan 29
7:30 am - 4:10 pmSFO-BOS
5h 40mnonstop
5:50 pm - 9:56 pmBOS-SFO
7h 06mnonstop
$213Delta
Find Deal
Sat, Jan 11 - Sat, Jan 18
11:05 pm - 7:38 amSFO-BOS
5h 33mnonstop
10:00 am - 1:49 pmBOS-SFO
6h 49mnonstop
$221JetBlue
Find Deal
Mon, Jan 13 - Tue, Jan 14
2:00 pm - 10:32 pmSFO-BOS
5h 32mnonstop
5:55 pm - 9:43 pmBOS-SFO
6h 48mnonstop
$227JetBlue
Find Deal
Thu, Jan 9 - Wed, Jan 15
6:00 am - 5:39 pmSFO-BOS
8h 39m1 stop
4:30 pm - 11:38 pmBOS-SFO
10h 08m1 stop
$232Alaska Airlines
Find Deal
Fri, Jan 10 - Thu, Jan 16
5:38 pm - 4:55 pmSFO-BOS
20h 17m1 stop
5:24 pm - 12:37 pmBOS-SFO
22h 13m1 stop
$242Alaska Airlines
Find Deal
Tue, Jan 7 - Tue, Jan 14
12:27 am - 11:02 amSFO-BOS
7h 35m1 stop
2:28 pm - 8:57 pmBOS-SFO
9h 29m1 stop
$271American Airlines
Find Deal
Thu, Jan 9 - Sun, Jan 26
4:18 pm - 5:29 amSFO-BOS
10h 11m1 stop
5:20 am - 1:35 pmBOS-SFO
11h 15m1 stop
$288American Airlines
Find Deal
Fri, Jan 17 - Mon, Jan 20
1:00 pm - 9:43 pmSFO-BOS
5h 43mnonstop
$89United Airlines
Find Deal
Tue, Jan 7
7:30 am - 4:10 pmSFO-BOS
5h 40mnonstop
$99Delta
Find Deal
Tue, Jan 7
7:30 am - 4:10 pmSFO-BOS
5h 40mnonstop
$114Delta
Find Deal
Tue, Jan 28
6:00 am - 4:55 pmSFO-BOS
7h 55m1 stop
$121Alaska Airlines
Find Deal
Wed, Jan 8
12:55 pm - 12:18 amSFO-BOS
8h 23m1 stop
$123JetBlue
Find Deal
Fri, Jan 24
11:35 am - 11:59 pmSFO-BOS
9h 24m1 stop
$124Alaska Airlines
Find Deal
Tue, Feb 18
3:05 pm - 11:37 pmSFO-BOS
5h 32mnonstop
$133JetBlue
Find Deal
Thu, Mar 13
7:06 pm - 5:58 amSFO-BOS
7h 52m1 stop
$139United Airlines
Find Deal
Sat, Jun 14
4:18 pm - 5:29 amSFO-BOS
10h 11m1 stop
$144American Airlines
Find Deal
Fri, Jan 17
11:12 pm - 9:55 amSFO-BOS
7h 43m1 stop
$145American Airlines
Find Deal
Wed, May 7
8:20 am - 4:53 pmSFO-BOS
5h 33mnonstop
6:00 am - 9:55 amBOS-SFO
6h 55mnonstop
$379JetBlue
Find Deal
Thu, Dec 19 - Wed, Jan 8
7:00 am - 3:44 pmSFO-BOS
5h 44mnonstop
5:24 pm - 12:37 pmBOS-SFO
22h 13m1 stop
$386Alaska Airlines
Find Deal
Thu, Dec 19 - Tue, Jan 14
11:46 am - 10:52 pmSFO-BOS
8h 06m1 stop
4:19 pm - 10:16 pmBOS-SFO
8h 57m1 stop
$398American Airlines
Find Deal
Sun, Dec 22 - Sat, Jan 11
5:40 am - 4:25 pmSFO-BOS
7h 45m1 stop
5:50 pm - 9:56 pmBOS-SFO
7h 06mnonstop
$399Delta
Find Deal
Fri, Dec 20 - Thu, Jan 9
10:59 pm - 9:06 amSFO-BOS
7h 07m1 stop
7:50 am - 11:59 amBOS-SFO
7h 09mnonstop
$409Delta
Find Deal
Mon, Dec 23 - Thu, Jan 9
7:30 am - 4:12 pmSFO-BOS
5h 42mnonstop
11:00 am - 2:51 pmBOS-SFO
6h 51mnonstop
$489United Airlines
Find Deal
Sun, Dec 22 - Tue, Jan 7
7:30 am - 4:12 pmSFO-BOS
5h 42mnonstop
1:30 pm - 11:10 pmBOS-SFO
12h 40m1 stop
$499United Airlines
Find Deal
Sun, Dec 22 - Wed, Jan 22
12:17 am - 11:03 amSFO-BOS
7h 46m1 stop
6:25 am - 12:30 pmBOS-SFO
9h 05m1 stop
$521American Airlines
Find Deal
Sat, Dec 21 - Tue, Jan 21
11:59 pm - 10:51 amSFO-BOS
7h 52m1 stop
6:45 am - 10:51 pmBOS-SFO
19h 06m1 stop
$613Sun Country Air
Find Deal
Thu, Dec 19 - Sat, Dec 28
11:59 pm - 10:51 amSFO-BOS
7h 52m1 stop
11:46 am - 10:51 pmBOS-SFO
14h 05m1 stop
$615Sun Country Air
Find Deal
Thu, Dec 19 - Tue, Dec 31
11:10 pm - 7:53 amSFO-BOS
5h 43mnonstop
11:00 am - 2:51 pmBOS-SFO
6h 51mnonstop
$177United Airlines
Find Deal
Sun, Jan 12 - Thu, Jan 16
1:15 pm - 9:54 pmSFO-BOS
5h 39mnonstop
5:50 pm - 9:56 pmBOS-SFO
7h 06mnonstop
$197Delta
Find Deal
Fri, Jan 24 - Wed, Jan 29
7:30 am - 4:10 pmSFO-BOS
5h 40mnonstop
5:50 pm - 9:56 pmBOS-SFO
7h 06mnonstop
$213Delta
Find Deal
Sat, Jan 11 - Sat, Jan 18
11:05 pm - 7:38 amSFO-BOS
5h 33mnonstop
10:00 am - 1:49 pmBOS-SFO
6h 49mnonstop
$221JetBlue
Find Deal
Mon, Jan 13 - Tue, Jan 14
11:15 am - 7:53 pmSFO-BOS
5h 38mnonstop
6:00 am - 9:55 amBOS-SFO
6h 55mnonstop
$229JetBlue
Find Deal
Wed, Feb 26 - Thu, Mar 6
11:20 pm - 7:57 amSFO-BOS
5h 37mnonstop
5:45 am - 9:40 amBOS-SFO
6h 55mnonstop
$259United Airlines
Find Deal
Sat, Feb 15 - Sat, Feb 22
7:44 am - 4:27 pmSFO-BOS
5h 43mnonstop
7:59 pm - 11:57 pmBOS-SFO
6h 58mnonstop
$270Alaska Airlines
Find Deal
Thu, Apr 3 - Thu, Apr 10
7:44 am - 4:27 pmSFO-BOS
5h 43mnonstop
7:59 pm - 11:57 pmBOS-SFO
6h 58mnonstop
$300Alaska Airlines
Find Deal
Thu, Apr 3 - Mon, Apr 14
7:44 am - 4:27 pmSFO-BOS
5h 43mnonstop
7:59 pm - 11:57 pmBOS-SFO
6h 58mnonstop
$406American Airlines
Find Deal
Sun, Apr 6 - Thu, Apr 10
7:44 am - 4:27 pmSFO-BOS
5h 43mnonstop
7:59 pm - 11:57 pmBOS-SFO
6h 58mnonstop
$451American Airlines
Find Deal
Sat, Apr 5 - Thu, Apr 10

Delta flights from San Francisco to Boston

Our best Delta deals on San Francisco to Boston flight tickets
Delta
Jan 24
SFO1:15 pmSan Francisco
5h 39m
BOS9:54 pmBoston Logan Intl
Jan 29
BOS5:50 pmBoston Logan Intl
7h 06m
SFO9:56 pmSan Francisco
Delta
Jan 11
SFO7:30 amSan Francisco
5h 40m
BOS4:10 pmBoston Logan Intl
Jan 18
BOS5:50 pmBoston Logan Intl
7h 06m
SFO9:56 pmSan Francisco
Delta
Feb 8
SFO7:30 amSan Francisco
5h 40m
BOS4:10 pmBoston Logan Intl
Feb 21
BOS7:50 amBoston Logan Intl
7h 09m
SFO11:59 amSan Francisco

JetBlue flights from San Francisco to Boston

Our best JetBlue deals on San Francisco to Boston flight tickets
JetBlue
Jan 13
SFO11:05 pmSan Francisco
5h 33m
BOS7:38 amBoston Logan Intl
Jan 14
BOS10:00 amBoston Logan Intl
6h 49m
SFO1:49 pmSan Francisco
JetBlue
Jan 9
SFO2:00 pmSan Francisco
5h 32m
BOS10:32 pmBoston Logan Intl
Jan 15
BOS5:55 pmBoston Logan Intl
6h 48m
SFO9:43 pmSan Francisco
JetBlue
Feb 26
SFO11:15 amSan Francisco
5h 38m
BOS7:53 pmBoston Logan Intl
Mar 6
BOS6:00 amBoston Logan Intl
6h 55m
SFO9:55 amSan Francisco

See travel insights to Boston from

How to get the cheapest flight ticket from San Francisco to Boston

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Boston?

In general, February is the cheapest month to fly from San Francisco to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $272. If you aren’t able to travel during the month of February, then book flights to Boston from San Francisco during January instead. Flights to Boston in January, while not as cheap as those in February, still average around $307.

What is the cheapest day to depart on your flight to Boston?

The cheapest day to depart from San Francisco to Boston is on a Tuesday when prices can be found for as low as $347. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Sunday is $422.

What is the cheapest time of day to depart on your flight to Boston?

According to our data, the cheapest time of day to fly to Boston is in the afternoon. momondo users have found flights departing from San Francisco to Boston in the afternoon for as low as $340. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Boston, so prices are often more expensive at around $387 per ticket.

What is the cheapest San Francisco to Boston Logan Intl flight route?

Fly from San Francisco to Boston Logan Intl for the best San Francisco - Boston Logan Intl flight prices

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

You are more likely to see cheaper flights to Boston from San Francisco when booking 50 days ahead of your departure date. In general, you can expect to find flights to Boston for around $372 when searching 50 days out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from San Francisco for as low as $293 on momondo.

What cabin class options are available on San Francisco to Boston Logan Intl flights?

There are 4 cabin classes available to choose from on San Francisco to Boston Logan Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on San Francisco to Boston flights?

You could potentially save up to 35% on your flight if you consider stops on a San Francisco to Boston flight.

How have San Francisco to Boston flight prices changed over time?

As of December 2024, prices for San Francisco to Boston flights are approximately 2% more expensive when compared to flights at the same time last year.

When to book flights from San Francisco to Boston

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to Boston according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Francisco to Boston (SFO to BOS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Boston

Best Price Found

$89

Fastest flight time

5h 30m

Direct flights

Every day

Airports in Boston

1 airport
The best one-way flight to Boston from San Francisco in the past 72 hours is $89. The best round-trip flight deal from San Francisco to Boston found on momondo in the last 72 hours is $177.
The fastest flight from San Francisco to Boston takes 5h 30m
Direct flights go from San Francisco to Boston every day.
There is 1 airport near Boston: Boston Logan Intl (BOS)

  • How far is San Francisco to Boston Logan Intl by plane?

    San Francisco and Boston Logan Intl are 2690.2 mi apart from one another. Flights usually cover this in 5h 30m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from San Francisco Airport to Boston Logan Intl Airport?

    Prices for flights from San Francisco Airport to Boston Logan Intl Airport are updated daily.

  • How many operators does momondo search for flights from San Francisco Airport to Boston Logan Intl Airport?

  • How old do you have to be to fly from San Francisco Airport to Boston Logan Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Boston Logan Intl Airport.

  • What documentation or ID do you need to fly to Boston Logan Intl Airport?

    The travel and health documents required for your trip to Boston Logan Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Boston Logan Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from San Francisco to Boston?

  • What is the most popular airline from San Francisco to Boston?


Best airlines flying from San Francisco to Boston

Compare and see reviews for airlines that fly from San Francisco to Boston with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $120Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
FrontierPriceFrom $128Free CancellationRating
6.1
3,479 reviews
Search Frontier flights
DeltaPriceFrom $149Free CancellationRating
8.0
8,604 reviews
Search Delta flights
Alaska AirlinesPriceFrom $152Free CancellationRating
8.0
9,552 reviews
Search Alaska Airlines flights
Sun Country AirPriceFrom $162Free CancellationRating
6.9
399 reviews
Search Sun Country Air flights
JetBluePriceFrom $168Free CancellationRating
7.4
3,279 reviews
Search JetBlue flights
United AirlinesPriceFrom $226Free CancellationRating
7.4
9,059 reviews
Search United Airlines flights
SouthwestPriceFrom $406Free CancellationRating
8.1
4,848 reviews
Search Southwest flights
  • Delta Flights From San Francisco to Boston

    Delta operates around 3 flights from San Francisco to Boston every week. The average price of these flights found in the last 72 hours has been $387, but momondo users have found Delta deals from San Francisco to Boston from as low as $149 round-trip. Delta has been scored 8.0/10 in 8,604 reviews.

  • Alaska Airlines Flights From San Francisco to Boston

    Across 9,552 Alaska Airlines reviews on momondo, the average score is 8.0/10. Alaska Airlines flies from San Francisco to Boston about 1 time each week, with ticket deals ranging from $152 to $405. Price data is based on momondo searches in the last 72 hours.


Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Boston?

It is quick and easy to find San Francisco to Boston flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Boston that suits you.

Can I find flights from San Francisco to Boston with flexible booking policies on momondo?

momondo does allow users to show only those flights to Boston from San Francisco which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from San Francisco to Boston?

momondo helps you find the best flight between San Francisco and Boston by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from San Francisco to Boston right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Boston, momondo offers a useful price alert feature which will track prices for flights to Boston from San Francisco and alert you when they change.


An easier way to manage your Boston trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
Mon 12/23
Mon 12/30
Email me momondo's favorite deals

Find better results for your trip to the United States