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$119+ Cheap flights from Massachusetts to San Francisco (SFO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SFO
Jan 21 — Jan 281
Wed 1/21
Wed 1/28
1 adult, Economy
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Cheap flight deals from Massachusetts to San Francisco

Cheapest flights from Massachusetts to San Francisco
Explore the most affordable flight options available from Massachusetts to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 22, 2025.

This Delta deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:40 amBOS - SFO
Nonstop6h 57mDelta
Tue 1/277:10 amSFO - BOS
Nonstop5h 41mDelta
Deal found 12/22$397
This Expedia deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:00 amBDL - SFO
1 stop8h 44mMultiple Airlines
Wed 12/3111:20 pmSFO - BDL
1 stop8h 50mMultiple Airlines
Deal found 12/21$405
This Expedia deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:00 amBOS - SFO
1 stop10h 13mMultiple Airlines
Tue 12/303:22 pmSFO - BOS
Nonstop5h 33mMultiple Airlines
Deal found 12/20$406
This Delta deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/215:25 pmBOS - SFO
Nonstop6h 51mDelta
Mon 1/121:00 pmSFO - BOS
Nonstop5h 37mDelta
Deal found 12/21$417
This JetBlue deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/218:59 pmBOS - SFO
Nonstop6h 53mJetBlue
Mon 1/121:50 pmSFO - BOS
Nonstop5h 39mJetBlue
Deal found 12/20$418
This Alaska Airlines deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/217:23 pmBOS - SFO
Nonstop6h 47mAlaska Airlines
Mon 1/2612:00 pmSFO - BOS
1 stop8h 54mAlaska Airlines
Deal found 12/21$427
This Priceline deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:00 amBOS - SFO
1 stop10h 13mMultiple Airlines
Mon 1/58:40 pmSFO - BOS
Nonstop5h 31mMultiple Airlines
Deal found 12/21$430
This United Airlines deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/214:47 pmBOS - SFO
1 stop9h 18mUnited Airlines
Mon 1/2611:55 pmSFO - BOS
1 stop8h 17mUnited Airlines
Deal found 12/21$437
This United Airlines deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:44 pmBOS - SFO
1 stop8h 33mUnited Airlines
Mon 1/511:35 pmSFO - BOS
1 stop8h 17mUnited Airlines
Deal found 12/21$442
This JetBlue deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:00 amBDL - SFO
1 stop8h 44mJetBlue
Tue 1/612:40 pmSFO - BDL
1 stop8h 08mJetBlue
Deal found 12/21$455
This CheapOair deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/234:40 pmBOS - SFO
Nonstop6h 53mJetBlue
Sat 1/107:00 amSFO - BOS
1 stop14h 13mJetBlue
Deal found 12/19$457
This American Airlines deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/231:45 pmORH - SFO
2 stops25h 36mAmerican Airlines
Thu 1/17:00 amSFO - ORH
2 stops27h 17mAmerican Airlines
Deal found 12/20$468

Find flight deals from Massachusetts to San Francisco

Keep the following information in mind while searching for Massachusetts to San Francisco flight deals. Data was last updated December 22, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$223
(Kiwi.com)

One-way from

$119
(United Airlines)

Popular in

December

Cheapest in

March

Average price

$455

Good round-trip deal

$282 or less

Good one-way deal

$200 or less
Provider with most accurate pricing for Boston Logan Intl-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-San Francisco flights.
Search Deals
From Massachusetts to San Francisco
Search Deals
One-way flight from Massachusetts to San Francisco
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Massachusetts to San Francisco.
Search Deals
Price to beat on a one-way flight from Massachusetts to San Francisco.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Massachusetts to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 22, 2025.
Use the filters below to find and compare flights from Massachusetts to San Francisco that are best for you.

Fly from

Massachusetts

Fly to

San Francisco

Route

Depart

Return

Price

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Tue 2/3

4:20 pm-10:47 pm

1 stop9h 27m

San Francisco

Mon 2/9

6:56 pm-3:20 pm

1 stop17h 24m

$236

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Thu 1/29

7:50 am-11:50 am

Nonstop7h 00m

San Francisco

Mon 2/2

1:00 pm-9:37 pm

Nonstop5h 37m

$237

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Wed 1/14

6:50 am-2:20 pm

2 stops10h 30m

San Francisco

Tue 1/20

9:50 am-10:30 pm

1 stop9h 40m

$242

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Wed 1/21

7:11 am-11:10 am

Nonstop6h 59m

San Francisco

Sat 1/24

12:40 pm-12:13 am

1 stop8h 33m

$245

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Sun 1/25

10:15 am-5:09 pm

1 stop9h 54m

San Francisco

Wed 1/28

8:29 pm-5:00 am

Nonstop5h 31m

$245

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Mon 1/26

5:20 pm-9:11 am

1 stop18h 51m

San Francisco

Sat 1/31

11:36 am-3:20 pm

1 stop24h 44m

$256

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Mon 1/12

7:09 pm-10:59 pm

Nonstop6h 50m

San Francisco

Wed 1/14

7:00 am-6:45 pm

1 stop8h 45m

$265

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Sat 1/24

4:10 pm-10:49 pm

1 stop9h 39m

San Francisco

Mon 2/2

12:20 pm-8:58 pm

Nonstop5h 38m

$265

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Fri 1/16

10:41 am-5:09 pm

1 stop9h 28m

San Francisco

Sun 1/18

3:25 pm-11:58 pm

Nonstop5h 33m

$265

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Sat 4/4

5:30 am-9:11 am

Nonstop6h 41m

San Francisco

Wed 4/8

12:23 pm-9:21 pm

Nonstop5h 58m

$273

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Showing 1-10 of 60 results
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Best time to book a flight from Massachusetts to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Massachusetts with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Massachusetts to San Francisco

What is the cheapest month to book a flight from Massachusetts to San Francisco?

Currently, March is the cheapest month in which you can book a flight from Massachusetts to San Francisco (average of $103). Flying from Massachusetts to San Francisco in May is currently the most expensive (average of $179). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MA to SFO?

Find hourly flight availability from Massachusetts to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 22, 2025.

It’s typically best to fly out from Massachusetts to San Francisco in the evening. Doing so could potentially save you 60% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from Massachusetts to San Francisco?

Use this chart to determine the cheapest time to fly round-trip from Massachusetts to San Francisco. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Massachusetts to San Francisco flight should consider departing on Saturday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Massachusetts to San Francisco

Explore weekly flight availability from Massachusetts to San Francisco. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 22, 2025.

The most flights from USMA to SFO are scheduled on a Sunday (44 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (17 on average).

Related info for your journey

Find useful and relevant information for your journey from Massachusetts to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Francisco from Massachusetts?

    San Francisco (SFO), located 11.8 mi from the city center, is the airport you fly into when you book flights from Massachusetts to San Francisco.

  • How popular is this Massachusetts to San Francisco flight route?

    This flight path from Massachusetts to San Francisco was viewed by 82 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Massachusetts to San Francisco?

    Departing from Massachusetts to San Francisco will take you 7h. Massachusetts and San Francisco are separated by a distance of 2696 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Massachusetts to San Francisco one-way?

    The cheapest airlines for a one-way flight from Massachusetts to San Francisco are Frontier ($72), Alaska Airlines ($113), and JetBlue ($113).

  • What are the most popular routes from Massachusetts to San Francisco?

    When deciding which route to take from Massachusetts to San Francisco consider Boston Logan Intl - San Francisco, Hartford Bradley Intl - San Francisco or Albany Intl - San Francisco as they are the most popular.

  • What are the most reliable airlines from Massachusetts to San Francisco?

    Before booking your flight to San Francisco from Massachusetts, check out the most reliable airlines to get you to your destination on time: China Eastern (100%), Air China (89%), Korean Air( 88%).

  • What are the cheapest flights from Massachusetts to San Francisco?

    Looking for the cheapest flight from Massachusetts to San Francisco? While on average our users pay $999, our data indicates the cheapest price to be $120. The most popular route (Boston Logan Intl - San Francisco), is priced around $190.

  • Can I find deals for flights from Massachusetts to San Francisco that include hotel bookings?

    Yes. In addition to deals on Massachusetts to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Massachusetts to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Massachusetts to San Francisco.

  • Can I find deals for business class flights from Massachusetts to San Francisco?

    Yes. Cheapflights offers flight deals from Massachusetts to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Massachusetts to San Francisco?

    Currently, March is the cheapest month in which you can book a flight from Massachusetts to San Francisco (average of $103). Flying from Massachusetts to San Francisco in May is currently the most expensive (average of $179). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Roseville
South San Francisco
Santa Cruz
Livermore
Turlock
Manteca
Watsonville
Redwood City
Sunnyvale
Santa Clara
San Bruno
Daly City
San Carlos
Vallejo
Hollister
San Ramon
Foster City
Union City
Davis
Emeryville

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Top 9 airlines flying from Massachusetts to San Francisco

Discover the top 9 airlines that operate flights from Massachusetts to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$92Average$222FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$129Average$324FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$153Average$384FlexibilityNo cancel feeOn-time63%
DeltaCheapest$194Average$368FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$198Average$357FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$202Average$355FlexibilityNo cancel feeOn-time83%
United AirlinesCheapest$228Average$408FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$236Average$364FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$256Average$373FlexibilityNo cancel feeOn-time71%

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