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Cheap flights from Boston to San Francisco from ₹ 11,182

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 16/7. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SFO
19 Jun — 26 Jun1
1 adult

Cheapflights Tip: The best prices from Boston Logan Intl to San Francisco are usually found in September or January, booked 56 days in advance, depart on a Saturday or Monday 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 14 June 2025.

Round-trip from

₹ 21,246

One-way from

₹ 11,182

Popular in

December

Cheapest in

September

Average price

₹ 33,374

Good one-way deal

₹ 14,062 or less
United Airlines
  • United Airlines
  • 10/9-24/9
  • 1 total stop
  • 13h 59m total
  • Boston to San Francisco
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Delta
  • Delta
  • 16/7
  • Nonstop
  • 6h 47m total
  • Boston to San Francisco
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Highest demand for flights based on searches. 2% potential increase in price (₹ 74,546 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (₹ 37,876 potential savings vs. average return price).
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Average for round-trip flights in June 2025
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Price to beat on a 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 14 June 2025.

Wed 10/911:06BOS - SFO
1 stop8h 13mUnited Airlines
Wed 24/915:10SFO - BOS
Nonstop5h 46mUnited Airlines
Deal found 12/6₹ 21,246
Thu 16/1020:12BOS - SFO
Nonstop6h 32mAlaska Airlines
Wed 22/1007:11SFO - BOS
Nonstop5h 49mAlaska Airlines
Deal found 13/6₹ 21,332
Tue 16/911:25BOS - SFO
1 stop9h 55mSouthwest
Sat 20/908:20SFO - BOS
1 stop9h 35mSouthwest
Deal found 12/6₹ 21,934
Wed 30/720:47BOS - SFO
Nonstop6h 47mDelta
Tue 12/807:05SFO - BOS
Nonstop5h 49mDelta
Deal found 13/6₹ 22,106
Thu 10/721:19BOS - SFO
Nonstop6h 40mJetBlue
Mon 21/723:25SFO - BOS
Nonstop5h 38mJetBlue
Deal found 13/6₹ 22,278
Tue 5/808:40BOS - SFO
1 stop8h 24mHawaiian Airlines
Sat 9/821:28SFO - BOS
Nonstop5h 42mHawaiian Airlines
Deal found 13/6₹ 27,009
Fri 7/1111:42BOS - SFO
1 stop26h 07mSun Country Air
Sat 22/1123:59SFO - BOS
1 stop7h 42mSun Country Air
Deal found 13/6₹ 33,976

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 14 June 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

Wed 10/9

11:06-16:19

1 stop8h 13m

San Francisco

Wed 24/9

15:10-23:56

Nonstop5h 46m

₹ 21,246

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Thu 16/10

20:12-23:44

Nonstop6h 32m

San Francisco

Wed 22/10

07:11-16:00

Nonstop5h 49m

₹ 21,332

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Tue 16/9

11:25-18:20

1 stop9h 55m

San Francisco

Sat 20/9

08:20-20:55

1 stop9h 35m

₹ 21,934

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Wed 30/7

20:47-00:34

Nonstop6h 47m

San Francisco

Tue 12/8

07:05-15:54

Nonstop5h 49m

₹ 22,106

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Thu 10/7

21:19-00:59

Nonstop6h 40m

San Francisco

Mon 21/7

23:25-08:03

Nonstop5h 38m

₹ 22,278

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Tue 5/8

08:40-14:04

1 stop8h 24m

San Francisco

Sat 9/8

21:28-06:10

Nonstop5h 42m

₹ 27,009

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Fri 7/11

11:42-10:49

1 stop26h 07m

San Francisco

Sat 22/11

23:59-10:41

1 stop7h 42m

₹ 33,976

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Wed 16/7

20:47-00:34

Nonstop6h 47m

₹ 11,182

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Sat 13/9

09:15-16:25

2 stops10h 10m

₹ 11,440

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Thu 25/9

07:20-15:52

1 stop11h 32m

₹ 11,612

Flights are sorted by cheapest return flights first.

Deals found on 13/6

Showing 1-10 of 15 results
1
2

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 9 June 2025.

The best time to book flights from Boston to San Francisco is 56 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 ₹ 985). Flying from Boston to San Francisco in August is currently the most expensive (average of ₹ 1,340). 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 14 June 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 45% on your trip compared to booking a flight at midday.

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 14 June 2025.

The most flights from BOS to SFO are scheduled on a Thursday (62 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (33 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 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

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 14 June 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Boston to San Francisco. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very Good
10,000 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very Good
4,283 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very Good
7,956 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,499 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,793 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 53 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 46m 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 8 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    United Airlines, at ₹ 21,246, was found to be the cheapest airline from Boston to San Francisco.Alternate airlines to your destination round-trip include Alaska Airlines and Southwest. United Airlines is currently priced 30% 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 Delta, with whom users have recently found tickets for as low as ₹ 11,182. However, be on the lookout for offers from Southwest and Alaska Airlines, 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 (92%) or ANA (90%) 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 ₹ 16,212, our data indicates the cheapest price to be ₹ 11,122. The most popular route (Boston Logan Intl - San Francisco), is priced around ₹ 51,179.

  • 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 ₹ 985). Flying from Boston to San Francisco in August is currently the most expensive (average of ₹ 1,340). 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 Boston?

Book flights to Boston if you plan to visit one of these locations
San Bruno
Half Moon Bay
Mountain View
Daly City
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 14 June 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest₹ 10,190Average₹ 22,962FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest₹ 14,156Average₹ 30,877FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
JetBlueCheapest₹ 16,910Average₹ 29,348FlexibilityNo 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?

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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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Of course! You can now track prices for flights from Boston to San Francisco and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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