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Cheap flights from Boston to San Francisco from ₹ 11,896

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 25/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SFO
27 Nov — 4 Dec1
1 adult
1 adult, Economy, 0 bags

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

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 28 October 2025.

Round-trip from

₹ 18,241

One-way from

₹ 11,896

Popular in

December

Cheapest in

January

Average price

₹ 34,455
Alaska Airlines
  • Alaska Airlines
  • 11/12-12/12
  • 1 total stop
  • 16h 01m total
  • Boston to San Francisco
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Alaska Airlines
  • Alaska Airlines
  • 25/12
  • 1 total stop
  • 11h 16m total
  • Boston to San Francisco
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (₹ 62,676 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (₹ 37,076 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
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Find flight deals from Boston to San Francisco

Enter your travel dates to find the best prices.

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 28 October 2025.

Thu 11/1216:24BOS - SFO
1 stop10h 24mAlaska Airlines
Sun 14/1207:00SFO - BOS
Nonstop5h 37mAlaska Airlines
Deal found 27/10₹ 18,241
Thu 4/1218:52BOS - SFO
Nonstop6h 56mAlaska Airlines
Thu 29/107:00SFO - BOS
1 stop7h 44mAlaska Airlines
Deal found 28/10₹ 18,593
Wed 10/1216:24BOS - SFO
1 stop9h 24mAlaska Airlines
Fri 12/1207:00SFO - BOS
1 stop7h 52mAlaska Airlines
Deal found 27/10₹ 19,034
Fri 14/1107:25BOS - SFO
Nonstop6h 58mDelta
Tue 18/1107:00SFO - BOS
Nonstop5h 34mDelta
Deal found 28/10₹ 19,122
Mon 8/1218:52BOS - SFO
Nonstop6h 56mAlaska Airlines
Thu 8/109:00SFO - BOS
1 stop11h 59mAlaska Airlines
Deal found 28/10₹ 19,474
Tue 9/1205:40BOS - SFO
1 stop9h 05mJetBlue
Tue 9/1215:20SFO - BOS
Nonstop5h 31mJetBlue
Deal found 27/10₹ 19,563
Thu 11/1206:00BOS - SFO
Nonstop6h 45mUnited Airlines
Thu 25/1214:05SFO - BOS
Nonstop5h 43mUnited Airlines
Deal found 27/10₹ 19,739
Fri 14/1107:10BOS - SFO
Nonstop6h 50mJetBlue
Tue 18/1107:00SFO - BOS
1 stop9h 51mJetBlue
Deal found 28/10₹ 20,003
Thu 11/1206:00BOS - SFO
Nonstop6h 45mUnited Airlines
Mon 15/1208:25SFO - BOS
1 stop7h 23mUnited Airlines
Deal found 26/10₹ 20,356
Tue 9/1205:40BOS - SFO
1 stop9h 05mJetBlue
Thu 25/1213:15SFO - BOS
Nonstop5h 38mJetBlue
Deal found 27/10₹ 20,620
Fri 12/1206:00BOS - SFO
Nonstop6h 45mUnited Airlines
Mon 5/123:25SFO - BOS
Nonstop5h 45mUnited Airlines
Deal found 27/10₹ 20,708
Mon 8/1218:59BOS - SFO
1 stop19h 01mAlaska Airlines
Fri 12/1207:00SFO - BOS
1 stop7h 52mAlaska Airlines
Deal found 27/10₹ 20,796

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 28 October 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

Mon 8/12

17:00-22:30

1 stop8h 30m

San Francisco

Sat 13/12

21:25-09:45

1 stop9h 20m

₹ 19,122

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Thu 5/2

16:20-22:47

1 stop9h 27m

San Francisco

Tue 10/2

07:00-17:44

1 stop7h 44m

₹ 19,386

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Mon 2/2

10:05-17:13

1 stop10h 08m

San Francisco

Wed 11/2

07:00-17:50

1 stop7h 50m

₹ 19,474

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Thu 5/2

16:20-22:47

1 stop9h 27m

San Francisco

Fri 6/2

07:00-17:44

1 stop7h 44m

₹ 19,739

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Mon 2/2

16:20-22:47

1 stop9h 27m

San Francisco

Mon 9/2

07:00-17:44

1 stop7h 44m

₹ 19,739

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Wed 3/12

19:07-01:15

1 stop9h 08m

San Francisco

Sat 6/12

08:25-17:06

Nonstop5h 41m

₹ 20,003

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Fri 5/12

20:14-23:59

Nonstop6h 45m

San Francisco

Mon 8/12

21:00-10:53

1 stop10h 53m

₹ 20,003

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Mon 8/12

14:15-21:01

1 stop9h 46m

San Francisco

Fri 12/12

13:05-21:43

Nonstop5h 38m

₹ 20,003

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Wed 14/1

15:25-19:15

Nonstop6h 50m

San Francisco

Tue 20/1

07:00-17:50

1 stop7h 50m

₹ 20,003

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Wed 4/2

07:45-11:49

Nonstop7h 04m

San Francisco

Thu 12/2

07:00-15:45

Nonstop5h 45m

₹ 20,708

Flights are sorted by cheapest return flights first.

Deals found on 26/10

Showing 1-10 of 22 results
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2
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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 24 October 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, March is the cheapest month in which you can book a flight from Boston to San Francisco (average of ₹ 8,636). Flying from Boston to San Francisco in May is currently the most expensive (average of ₹ 15,685). 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 28 October 2025.

A simple way to save on the total cost of your ticket is to fly from Boston to San Francisco in the evening. If you’re flexible enough to do this you can expect to save up to 56% on your trip compared to booking a flight in the afternoon.

How much does it cost for a return flight from Boston to San Francisco?

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 28 October 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.
Delta
7.9
Good
7,995 reviews
Check prices

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

7.9

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
Delta
7.9
Good
7,995 reviews
Delta
7.9
Good
7,995 reviews
Check prices

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

7.9

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
United Airlines
7.4
Good
8,996 reviews
Delta
7.9
Good
7,995 reviews
Check prices

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

7.9

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
JetBlue
7.2
Good
2,907 reviews
Delta
7.9
Good
7,995 reviews
Check prices

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

7.9

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 30 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 40m is how long a nonstop flight from Boston to San Francisco typically takes.

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

    This flight path from Boston Logan Intl to San Francisco was viewed by 10 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 Boston to San Francisco?

    A quick flight from Boston to San Francisco can take about 8h 30m. Southwest provides one of the quickest options available for as low as ₹ 19,122. The distance from Boston to San Francisco is about 4339 km. Both multi-stop and direct flights can be found to your destination and back.

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

    Delta, at ₹ 10,440, 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 67% 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 United Airlines, with whom users have recently found tickets for as low as ₹ 12,072. 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 Qantas Airways (100%), Air China (97%) or ANA (91%) when booking your flight. These represent the most reliable airlines when flying from Boston to San Francisco.

  • 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, March is the cheapest month in which you can book a flight from Boston to San Francisco (average of ₹ 8,636). Flying from Boston to San Francisco in May is currently the most expensive (average of ₹ 15,685). 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
Mountain View
Fairfield
Burlingame
Milpitas

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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 28 October 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest₹ 10,440Average₹ 23,220FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest₹ 14,942Average₹ 31,632FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
JetBlueCheapest₹ 17,324Average₹ 29,221FlexibilityNo 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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