Cheap flights from Boston to San Francisco from ₹ 10,771

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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SFO
13 Oct — 20 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Boston Logan Intl to San Francisco are usually found in September or January, booked 83 days in advance, depart on a Monday or Friday and return on a Friday

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 13 September 2025.

Round-trip from

₹ 18,982

One-way from

₹ 10,771

Popular in

December

Cheapest in

September

Average price

₹ 27,723

Good round-trip deal

₹ 34,080 or less
Southwest
  • Southwest
  • 30/9-4/10
  • 2 total stops
  • 18h 40m total
  • Boston to San Francisco
Southwest
  • Southwest
  • 7/10
  • 2 total stops
  • 10h 10m total
  • Boston to San Francisco
Highest demand for flights based on searches. 2% potential increase in price (₹ 61,594 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (₹ 35,701 potential savings vs. average return price).
Average for round-trip flights in September 2025
Price to beat on a round-trip flight from Boston Logan Intl to San Francisco.

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 13 September 2025.

Tue 30/905:40BOS - SFO
1 stop10h 45mSouthwest
Sat 4/1006:00SFO - BOS
1 stop7h 55mSouthwest
Deal found 12/9₹ 18,982
Tue 30/909:25BOS - SFO
2 stops11h 55mSouthwest
Tue 7/1021:05SFO - BOS
1 stop8h 20mSouthwest
Deal found 11/9₹ 19,335
Fri 31/1015:55BOS - SFO
1 stop8h 30mSouthwest
Wed 5/1121:25SFO - BOS
1 stop7h 40mSouthwest
Deal found 11/9₹ 19,424
Wed 12/1114:10BOS - SFO
2 stops10h 05mSouthwest
Fri 14/1112:50SFO - BOS
1 stop7h 50mSouthwest
Deal found 12/9₹ 19,512
Wed 5/1107:20BOS - SFO
1 stop9h 35mSouthwest
Tue 11/1121:25SFO - BOS
1 stop7h 50mSouthwest
Deal found 11/9₹ 19,600
Sat 15/1105:20BOS - SFO
1 stop8h 40mSouthwest
Mon 17/1119:10SFO - BOS
2 stops10h 05mSouthwest
Deal found 11/9₹ 19,777
Sat 8/1105:20BOS - SFO
1 stop8h 40mSouthwest
Tue 18/1105:50SFO - BOS
2 stops10h 20mSouthwest
Deal found 12/9₹ 20,042
Thu 30/1006:35BOS - SFO
1 stop8h 55mSouthwest
Mon 3/1119:10SFO - BOS
2 stops10h 05mSouthwest
Deal found 12/9₹ 20,306
Sat 25/1005:20BOS - SFO
1 stop8h 30mSouthwest
Wed 29/1009:00SFO - BOS
1 stop10h 15mSouthwest
Deal found 12/9₹ 20,660
Fri 14/1106:10BOS - SFO
1 stop10h 55mSouthwest
Mon 17/1121:25SFO - BOS
1 stop7h 50mSouthwest
Deal found 11/9₹ 20,836

Cheapflights Fare Finder

 
Customise 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 454,620 searches. Data last updated 13 September 2025.
Use the filters below to find and compare flights from Boston to San Francisco that are best for you.

Fly from

Boston

Fly to

San Francisco

Route

Depart

Return

Price

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Thu 6/11

18:59-22:50

Nonstop6h 51m

San Francisco

Tue 11/11

07:00-15:41

Nonstop5h 41m

₹ 24,633

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Sun 7/12

20:05-23:58

Nonstop6h 53m

San Francisco

Tue 9/12

07:05-15:40

Nonstop5h 35m

₹ 24,633

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Sat 13/12

18:52-22:48

Nonstop6h 56m

San Francisco

Mon 15/12

07:00-15:37

Nonstop5h 37m

₹ 24,633

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Wed 17/12

06:45-10:33

Nonstop6h 48m

San Francisco

Wed 7/1

14:50-23:22

Nonstop5h 32m

₹ 24,633

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Tue 9/12

07:25-11:21

Nonstop6h 56m

San Francisco

Tue 9/12

21:43-06:25

Nonstop5h 42m

₹ 24,633

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Wed 21/1

10:30-14:19

Nonstop6h 49m

San Francisco

Sun 25/1

20:30-05:01

Nonstop5h 31m

₹ 24,633

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Thu 23/10

16:55-20:40

Nonstop6h 45m

San Francisco

Wed 29/10

07:00-15:42

Nonstop5h 42m

₹ 24,633

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Thu 23/10

06:55-12:00

1 stop8h 05m

San Francisco

Mon 27/10

21:05-08:25

1 stop8h 20m

₹ 24,721

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Tue 21/10

20:25-00:05

Nonstop6h 40m

San Francisco

Tue 4/11

11:40-00:20

1 stop9h 40m

₹ 24,809

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Tue 21/10

18:43-10:22

1 stop18h 39m

San Francisco

Tue 4/11

09:00-00:20

1 stop12h 20m

₹ 24,986

Flights are sorted by cheapest return flights first.

Deals found on 11/9

Showing 1-10 of 24 results
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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 return 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 Boston to San Francisco

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

Use this chart to determine the optimal time to book a return flight from Boston to San Francisco. Price data was last updated on 29 August 2025.

The best time to book flights from Boston to San Francisco is 83 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, October is the cheapest month in which you can book a flight from Boston to San Francisco (average of ₹ 982). Flying from Boston to San Francisco in July is currently the most expensive (average of ₹ 1,187). 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 13 September 2025.

A simple way to save on the total cost of your ticket is to fly from Boston to San Francisco in the afternoon. If you’re flexible enough to do this you can expect to save up to 54% on your trip compared to booking a flight at midday.

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 13 September 2025.
See what other customers who have flown with Delta, United Airlines, andJetBlue from Boston to San Francisco have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
8.0
Very Good

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 wish to fly to San Francisco from Boston, then you need to book flights from Boston Logan Intl to San Francisco. There are 45 flights from Logan Intl (BOS) to San Francisco (SFO) per day to choose from. Flights to San Francisco from Logan Intl are available from 3 different airlines, which means you should have some options if you want to compare airfare deals. 6h 28m is how long a nonstop flight from Boston to San Francisco typically takes.

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

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

    A quick flight from Boston to San Francisco can take about 6h 51m. Hawaiian Airlines provides one of the quickest options available for as low as ₹ 24,633. The distance from Boston to San Francisco is about 4339 km. Generally, flights for this route are direct.

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

    Delta, at ₹ 10,460, was found to be the cheapest airline from Boston to San Francisco.Alternate airlines to your destination round-trip include United Airlines and JetBlue. Delta is currently priced 66% below the average price you’ll pay for this route.

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

    The cheapest airline one-way is Southwest, with whom users have recently found tickets for as low as ₹ 11,213. However, be on the lookout for offers from Delta and JetBlue, as they are both options that can get you from Boston to San Francisco for a low price.

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

    Consider LATAM Airlines (92%), Etihad Airways (86%) or Virgin Australia (86%) when booking your flight. These represent the most reliable airlines when flying from Boston to San Francisco.

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

    Looking for the cheapest flight from Boston to San Francisco? While on average our users pay ₹ 35,931, our data indicates the cheapest price to be ₹ 20,231. The most popular route (Boston Logan Intl - San Francisco), is priced around ₹ 41,761.

  • 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 holiday 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, October is the cheapest month in which you can book a flight from Boston to San Francisco (average of ₹ 982). Flying from Boston to San Francisco in July is currently the most expensive (average of ₹ 1,187). 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

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
San Bruno
Half Moon Bay
Mountain View
Fairfield
Burlingame
Milpitas

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Boston to San Francisco

Discover the top 3 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 454,620 searches. Data last updated 13 September 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest₹ 10,460Average₹ 24,860FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest₹ 14,971Average₹ 31,693FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
JetBlueCheapest₹ 17,358Average₹ 30,124FlexibilityNo cancel feeOn-time62%
Search JetBlue flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Boston to San Francisco?

When you search for this flight from Boston to San Francisco, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Boston to San Francisco?

Millions of users choose and trust Cheapflights to book the best flight deals from Boston to San Francisco for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Boston to San Francisco with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Boston to San Francisco flexibly with Cheapflights today.

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