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Cheap flights from San Francisco to Boston from $155

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 18/3. 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

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Find the cheapest flights from San Francisco to Boston

Cheap return flights

These are some of the best return flight deals from San Francisco to Boston that have been recently found on momondo from popular airlines, departing in the coming months.
22:30 - 00:47SFO-BOS
23h 17m1 stop
06:00 - 21:30BOS-SFO
18h 30m1 stop
$270Frontier
Find Deal
Tue, 1 Apr - Tue, 8 Apr
13:15 - 21:54SFO-BOS
5h 39mdirect
07:50 - 11:50BOS-SFO
7h 00mdirect
$309Delta
Find Deal
Wed, 5 Mar - Wed, 12 Mar
07:44 - 16:27SFO-BOS
5h 43mdirect
19:59 - 23:57BOS-SFO
6h 58mdirect
$318Alaska Airlines
Find Deal
Thu, 3 Apr - Mon, 7 Apr
07:15 - 15:50SFO-BOS
5h 35mdirect
08:00 - 11:55BOS-SFO
6h 55mdirect
$320United Airlines
Find Deal
Mon, 17 Mar - Wed, 19 Mar
08:30 - 17:03SFO-BOS
5h 33mdirect
06:00 - 09:55BOS-SFO
6h 55mdirect
$324JetBlue
Find Deal
Tue, 4 Mar - Fri, 28 Mar
16:12 - 15:23SFO-BOS
20h 11m1 stop
18:24 - 09:12BOS-SFO
17h 48m1 stop
$338Alaska Airlines
Find Deal
Tue, 4 Mar - Mon, 17 Mar
08:47 - 19:45SFO-BOS
7h 58m1 stop
05:45 - 09:40BOS-SFO
6h 55mdirect
$342United Airlines
Find Deal
Thu, 6 Mar - Mon, 17 Mar
11:05 - 19:43SFO-BOS
5h 38mdirect
18:35 - 01:10BOS-SFO
9h 35m1 stop
$356JetBlue
Find Deal
Tue, 4 Mar - Fri, 14 Mar
06:05 - 19:45SFO-BOS
10h 40m2 stops
05:45 - 15:20BOS-SFO
12h 35m1 stop
$475Southwest
Find Deal
Wed, 5 Mar - Wed, 12 Mar
05:40 - 19:45SFO-BOS
11h 05m2 stops
15:20 - 23:20BOS-SFO
11h 00m1 stop
$489Southwest
Find Deal
Wed, 2 Apr - Wed, 9 Apr

Delta flights from San Francisco to Boston

Our best Delta deals on San Francisco to Boston flight tickets
Delta
5 Mar
SFO13:15San Francisco
5h 39m
BOS21:54Boston Logan Intl
12 Mar
BOS07:50Boston Logan Intl
7h 00m
SFO11:50San Francisco
Delta
4 Mar
SFO07:30San Francisco
5h 40m
BOS16:10Boston Logan Intl
29 Mar
BOS17:20Boston Logan Intl
6h 49m
SFO21:09San Francisco
Delta
26 Mar
SFO13:00San Francisco
5h 33m
BOS21:33Boston Logan Intl
2 Apr
BOS07:50Boston Logan Intl
7h 00m
SFO11:50San Francisco

Alaska Airlines flights from San Francisco to Boston

Our best Alaska Airlines deals on San Francisco to Boston flight tickets
Alaska Airlines
3 Apr
SFO07:44San Francisco
5h 43m
BOS16:27Boston Logan Intl
7 Apr
BOS19:59Boston Logan Intl
6h 58m
SFO23:57San Francisco
Alaska Airlines
4 Mar
SFO11:35San Francisco
9h 24m
1 stop
BOS23:59Boston Logan Intl
19 Mar
BOS19:59Boston Logan Intl
6h 58m
SFO23:57San Francisco
Alaska Airlines
4 Mar
SFO16:12San Francisco
20h 11m
1 stop
BOS15:23Boston Logan Intl
17 Mar
BOS18:24Boston Logan Intl
17h 48m
1 stop
SFO09:12San 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 typical price of a round-trip flight between San Francisco and Boston?

What is the cheapest month to fly to Boston?

In general, January 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 $489. The month of March is another great option to travel to Boston, with average flight prices from San Francisco averaging around $498.

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

On average, the least expensive day to fly to Boston from San Francisco is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $0. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $698. These prices are subject to change though, so be sure to set up a Price Alert for flights to Boston.

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 $0. 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 evening is when there is more demand to fly to Boston, so prices are often more expensive at around $769 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 5 weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $590 when searching 5 weeks 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 $536 on momondo.

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

There are 3 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.

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

As of February 2025, prices for San Francisco to Boston flights are approximately 18% 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 return 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

$155

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 $155. The best return flight deal from San Francisco to Boston found on momondo in the last 72 hours is $270.
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?

    Boston Logan Intl is 4329.4 km away from San Francisco. Typically, this will take 5h 30m by plane in normal conditions.

  • 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 were last updated today.

  • 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?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. 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 licence, 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
JetBluePriceFrom $292Free cancellationRating
7.4
3,068 reviews
Search JetBlue flights
  • JetBlue Flights From San Francisco to Boston

    JetBlue flies from San Francisco to Boston around 19 times per week, with 3,068 momondo users rating the airline 7.4/10. The cheapest JetBlue deal from San Francisco to Boston in the last 72 hours was $186 (round-trip), much lower than the average airfare cost of $301 for JetBlue flights on this route.


Travelling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Somerville
Cambridge
Westford
Waltham
Chelsea
Seekonk
Brookline

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?

Yes. All flights to Boston from San Francisco on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Boston from San Francisco.

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

Price alerts on flights to Boston from San Francisco are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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Airports servicing Massachusetts