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$119+ Cheap flights from Boston to San Francisco (BOS - 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 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SFO
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
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The best prices from Boston Logan Intl to San Francisco are usually found in September or February, booked 29 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Cheap flight deals from Boston to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 21, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

June

Cheapest in

September

Round-trip from

$174
(Alaska Airlines)

One-way from

$119
(Delta)
Provider with most accurate pricing for Boston Logan Intl-San Francisco flight deals.
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High demand for flights, 19% potential price rise
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Best time to find cheap flights, 15% potential price drop
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From Boston Logan Intl to San Francisco
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One-way flight from Boston Logan Intl to San Francisco
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Find flight deals from Boston to San Francisco

Cheapest flights from Boston to San Francisco
Explore the most affordable flight options available from Boston to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This Alaska Airlines deal was found by Cheapflights users on 11/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/256:59 pmBOS - SFO
Nonstop7h 04mAlaska Airlines
Tue 12/317:00 amSFO - BOS
Nonstop5h 44mAlaska Airlines
Deal found 11/20$174
This Expedia deal was found by Cheapflights users on 11/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/912:38 pmBOS - SFO
1 stop10h 12mMultiple Airlines
Thu 12/127:45 amSFO - BOS
Nonstop5h 38mMultiple Airlines
Deal found 11/19$188
This JetBlue deal was found by Cheapflights users on 11/21. 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 12/127:00 amBOS - SFO
Nonstop6h 48mJetBlue
Thu 12/122:39 pmSFO - BOS
Nonstop5h 30mJetBlue
Deal found 11/21$231
This Delta deal was found by Cheapflights users on 11/21. 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.
Fri 12/134:50 pmBOS - SFO
Nonstop6h 52mDelta
Sun 1/127:20 amSFO - BOS
Nonstop5h 38mDelta
Deal found 11/21$233
This United Airlines deal was found by Cheapflights users on 11/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/138:30 amBOS - SFO
Nonstop6h 50mUnited Airlines
Sun 12/158:25 pmSFO - BOS
Nonstop5h 38mUnited Airlines
Deal found 11/20$237
This American Airlines deal was found by Cheapflights users on 11/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/305:54 amBOS - SFO
1 stop9h 22mAmerican Airlines
Tue 1/149:00 amSFO - BOS
1 stop8h 52mAmerican Airlines
Deal found 11/21$253
This Sun Country Air deal was found by Cheapflights users on 11/21. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1511:37 amBOS - SFO
1 stop26h 09mSun Country Air
Tue 12/176:15 pmSFO - BOS
1 stop13h 36mSun Country Air
Deal found 11/21$285
This Kissandfly.com deal was found by Cheapflights users on 11/20. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/612:38 pmBOS - SFO
1 stop10h 12mFrontier
Wed 12/117:00 pmSFO - BOS
1 stop9h 25mFrontier
Deal found 11/20$300
This Southwest deal was found by Cheapflights users on 11/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/172:00 pmBOS - SFO
2 stops10h 50mSouthwest
Fri 1/105:20 amSFO - BOS
1 stop8h 35mSouthwest
Deal found 11/21$355

Find flights from Boston to San Francisco within your budget

Customize your flight search to find flights from Boston 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 2,612,795 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Wed 12/25

6:59 pm-11:03 pm

Nonstop7h 04m

San Francisco

Tue 12/31

7:00 am-3:44 pm

Nonstop5h 44m

$174

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Mon 12/9

12:38 pm-7:50 pm

1 stop10h 12m

San Francisco

Thu 12/12

7:45 am-4:23 pm

Nonstop5h 38m

$188

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Fri 1/10

1:30 pm-5:21 pm

Nonstop6h 51m

San Francisco

Mon 1/13

8:25 am-5:11 pm

Nonstop5h 46m

$229

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Thu 12/12

7:00 am-10:48 am

Nonstop6h 48m

San Francisco

Thu 12/12

2:39 pm-11:09 pm

Nonstop5h 30m

$231

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Fri 12/13

4:50 pm-8:42 pm

Nonstop6h 52m

San Francisco

Sun 1/12

7:20 am-3:58 pm

Nonstop5h 38m

$233

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Fri 1/10

6:00 am-12:15 pm

1 stop9h 15m

San Francisco

Sun 1/12

7:06 pm-5:29 am

1 stop7h 23m

$250

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Sun 12/15

11:37 am-10:46 am

1 stop26h 09m

San Francisco

Tue 12/17

6:15 pm-10:51 am

1 stop13h 36m

$285

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Fri 12/6

12:38 pm-7:50 pm

1 stop10h 12m

San Francisco

Tue 12/10

12:55 am-12:20 pm

1 stop8h 25m

$333

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Sun 2/16

10:30 pm-11:50 am

2 stops16h 20m

San Francisco

Tue 2/25

5:20 am-5:20 pm

2 stops9h 00m

$371

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Fri 12/13

8:59 pm-12:53 am

Nonstop6h 54m

$119

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/21

Showing 1-10 of 18 results
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Compare providers for flights from Boston to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to San Francisco in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-San Francisco flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boston to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Boston 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.

Travel insights for flights from Boston to San Francisco

Get recent, data-driven insights about flights from Boston to San Francisco including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Boston to San Francisco. Price data was last updated on November 15, 2024.

To ensure you get the cheapest price possible for a flight from Boston to San Francisco, you should look to book at least 29 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from Boston to San Francisco (average of $276). Flying from Boston to San Francisco in June is currently the most expensive (average of $381). 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 BOS to SFO?

Find hourly flight availability from Boston 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 November 21, 2024.

It’s typically best to fly out from Boston to San Francisco in the evening. Doing so could potentially save you 20% on the flight price compared to flying in the afternoon, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Boston to San Francisco. Price data was last updated on November 18, 2024.

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

Weekly flight availability from Boston to San Francisco

Explore weekly flight availability from Boston 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 November 21, 2024.

The most flights from BOS to SFO are scheduled on a Thursday (46 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (20 on average).

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated November 21, 2024.
To help decide which airline to fly from Boston to San Francisco, see what other customers have to say about Alaska Airlines, Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,005 reviews

Entertainment

7.7

Crew

8.7

Food

7.2

Boarding

8.2

Overall

8.1

Comfort

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
5,005 reviews
Southwest
8.1
Very good
5,005 reviews

Entertainment

7.7

Crew

8.7

Food

7.2

Boarding

8.2

Overall

8.1

Comfort

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,464 reviews
Southwest
8.1
Very good
5,005 reviews

Entertainment

7.7

Crew

8.7

Food

7.2

Boarding

8.2

Overall

8.1

Comfort

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,755 reviews
Southwest
8.1
Very good
5,005 reviews

Entertainment

7.7

Crew

8.7

Food

7.2

Boarding

8.2

Overall

8.1

Comfort

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

JetBlue
7.5
Good
3,389 reviews
Southwest
8.1
Very good
5,005 reviews

Entertainment

7.7

Crew

8.7

Food

7.2

Boarding

8.2

Overall

8.1

Comfort

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
9,172 reviews
Southwest
8.1
Very good
5,005 reviews

Entertainment

7.7

Crew

8.7

Food

7.2

Boarding

8.2

Overall

8.1

Comfort

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Related info for your journey

Find useful and relevant information for your journey from Boston 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 airports do I use to fly from Boston to San Francisco?

    If you book a flight from Boston to San Francisco, you will be flying from Logan Intl to San Francisco. Flights to San Francisco (SFO) from Boston Logan Intl (BOS) take 6h 24m for a nonstop flight. There are 31 flights from Logan Intl to San Francisco per day from 10 airlines.

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

    Flights from Boston Logan Intl to San Francisco have been viewed 92 times in the past calendar month.

  • What are the cheapest airlines flying from Boston to San Francisco round-trip?

    According to our current data, Alaska Airlines ($174), Frontier ($193), and Delta ($229) offers the cheapest pricing from Boston to San Francisco. Alaska Airlines is currently priced 51% below the average price you’ll pay for this route.

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

    One-way options have recently been found by users for as low as $119 on Delta. Other airlines that offer cheap prices include JetBlue from $120 and Alaska Airlines from $124 one-way.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Boston to San Francisco on time: ANA (92%), Etihad Airways (91%), Air China (90%).

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

    On average you can expect to pay $863 for a flight from Boston to San Francisco. The cheapest flight overall is $113 while the most popular route, (Boston Logan Intl - San Francisco) is currently priced at $199.

  • Where are the most common layover locations when flying from Boston to San Francisco?

    Most of the time, Boston to San Francisco flights that have layovers will stop in Charlotte.

  • What are some popular things to do or see while on a layover in Charlotte?

    Charlotte travelers tend to visit Carowind, Mint Museum Uptown, and Ovens Auditorium more than anywhere else. Carowind, Mint Museum Uptown, and Ovens Auditorium can be accessed by traveling approximately 8.2 mi, 5.4 mi, and 8.5 mi, respectively from Charlotte Douglas. Those landing in Charlotte looking to spend some time exploring during their layover can rent a car for about $52 per day.

  • Where are the least popular layover locations for Boston to San Francisco flights?

    Boston to San Francisco flights have a layover in New York least often.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boston 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 Boston to San Francisco?

    Currently, January is the cheapest month in which you can book a flight from Boston to San Francisco (average of $276). Flying from Boston to San Francisco in June is currently the most expensive (average of $381). 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.

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Alternative routes for Boston to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Boston to San Francisco

Discover the top 9 airlines that operate flights from Boston 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 2,612,795 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$89Average$296FlexibilityNo cancel feeOn-time65%
FrontierCheapest$91Average$161FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$124Average$414FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$130Average$370FlexibilityNo cancel feeOn-time71%
DeltaCheapest$144Average$361FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$162Average$384FlexibilityNo cancel feeOn-time83%
JetBlueCheapest$163Average$362FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$221Average$432FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$342Average$556FlexibilityNo cancel feeOn-time63%
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