What is the most punctual flight time for Boston to San Francisco flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Boston to San Francisco flights?

According to our data, United Airlines have had the fewest delays on this route over the last 12 months, with about 14% of their flights experiencing any sort of delay.

How many flights depart from Boston to San Francisco on average per day?

24 flights are operational daily from Boston to San Francisco as of February 2026. The most popular departure time for this route is 07:00, with 43% of flights per day taking off at midday.

How often are flights from Boston to San Francisco delayed?

Historically, on average around 16% of flights between Boston and San Francisco have experienced a delay on any given week. The average delay length over the past 12 months has been 171 minutes.

What is the cheapest airline that flies from Boston Logan Intl to San Francisco?

Delta, United Airlines, and JetBlue are the most popular carriers operating from Boston Logan Intl to San Francisco

How many flights depart from Boston to San Francisco on average per week?

173 flights are operational weekly from Boston to San Francisco as of February 2026. The most popular departure day for this route is Sun, with 18% of flights per week taking off on this day.

When did momondo last update prices for flights from Boston Logan Intl Airport to San Francisco Airport?

Prices for flights from Boston Logan Intl Airport to San Francisco Airport refresh daily.

How many operators does momondo search for flights from Boston Logan Intl Airport to San Francisco Airport?

There are 2 operators available for flights from Boston Logan Intl Airport to San Francisco Airport as of February 2026.

How old do you have to be to fly from Boston Logan Intl Airport to San Francisco Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to San Francisco Airport.

What documentation or ID do you need to fly to San Francisco Airport?

The necessary travel and health documents for your San Francisco Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

₹ 10,444 Cheap Flights from Boston to San Francisco in 2026

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Find the cheapest flights from Boston to San Francisco

Round-trip

One-way

Last minute

Direct

Cheap return flights

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07:00 - 14:02

BOS

SFO

10h 02m

1 stop

11:34 - 23:59

SFO

BOS

9h 25m

1 stop

₹ 19,880Alaska Airlines

Tue, 24 Feb - Wed, 4 Mar

16:47 - 23:18

BOS

SFO

9h 31m

1 stop

16:10 - 00:49

SFO

BOS

5h 39mdirect

₹ 20,338United Airlines

Wed, 25 Feb - Thu, 26 Feb

07:40 - 11:38

BOS

SFO

6h 58mdirect

07:25 - 15:57

SFO

BOS

5h 32mdirect

₹ 20,796Delta

Tue, 17 Mar - Wed, 18 Mar

07:30 - 17:56

BOS

SFO

13h 26m

1 stop

07:10 - 15:49

SFO

BOS

5h 39mdirect

₹ 21,071Delta

Tue, 24 Feb - Mon, 2 Mar

17:35 - 21:35

BOS

SFO

7h 00mdirect

11:00 - 05:32

SFO

BOS

15h 32m

1 stop

₹ 21,163Delta

Wed, 4 Mar - Tue, 17 Mar

20:33 - 00:25

BOS

SFO

6h 52mdirect

20:44 - 05:15

SFO

BOS

5h 31mdirect

₹ 21,254JetBlue

Mon, 23 Feb - Wed, 4 Mar

06:00 - 09:58

BOS

SFO

6h 58mdirect

23:59 - 10:49

SFO

BOS

7h 50m

1 stop

₹ 21,346United Airlines

Mon, 2 Mar - Thu, 5 Mar

07:45 - 11:47

BOS

SFO

7h 02mdirect

12:14 - 23:26

SFO

BOS

8h 12m

1 stop

₹ 21,438Delta

Thu, 26 Feb - Wed, 4 Mar

07:45 - 11:47

BOS

SFO

7h 02mdirect

08:00 - 20:34

SFO

BOS

9h 34m

1 stop

₹ 21,529Delta

Thu, 26 Feb - Wed, 4 Mar

20:45 - 00:27

BOS

SFO

6h 42mdirect

13:00 - 21:41

SFO

BOS

5h 41mdirect

₹ 21,712Delta

Wed, 15 Apr - Wed, 29 Apr

United Airlines flights from Boston to San Francisco

Our best United Airlines deals on Boston to San Francisco flight tickets

United Airlines

25 Feb

BOS16:47Boston Logan Intl

9h 31m

1 stop

SFO23:18San Francisco

26 Feb

SFO16:10San Francisco

5h 39m

BOS00:49Boston Logan Intl

₹ 20,338

United Airlines

2 Mar

BOS19:19Boston Logan Intl

9h 09m

1 stop

SFO01:28San Francisco

9 Mar

SFO23:35San Francisco

5h 38m

BOS08:13Boston Logan Intl

₹ 21,346

United Airlines

21 Feb

BOS19:19Boston Logan Intl

9h 09m

1 stop

SFO01:28San Francisco

2 Mar

SFO16:10San Francisco

5h 39m

BOS00:49Boston Logan Intl

₹ 23,636

Delta flights from Boston to San Francisco

Our best Delta deals on Boston to San Francisco flight tickets

Delta

17 Mar

BOS07:40Boston Logan Intl

6h 58m

SFO11:38San Francisco

18 Mar

SFO07:25San Francisco

5h 32m

BOS15:57Boston Logan Intl

₹ 20,796

Delta

24 Feb

BOS07:30Boston Logan Intl

13h 26m

1 stop

SFO17:56San Francisco

5 Mar

SFO07:10San Francisco

5h 39m

BOS15:49Boston Logan Intl

₹ 21,071

Delta

4 Mar

BOS17:35Boston Logan Intl

7h 00m

SFO21:35San Francisco

17 Mar

SFO11:00San Francisco

15h 32m

1 stop

BOS05:32Boston Logan Intl

₹ 21,163

Fly from

Fly to

Route

Depart

Return

Price

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Tue 24/2

07:00-14:02

1 stop10h 02m

San Francisco

Wed 4/3

11:34-23:59

1 stop9h 25m

₹ 19,880

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Wed 25/2

16:47-23:18

1 stop9h 31m

San Francisco

Thu 26/2

16:10-00:49

Nonstop5h 39m

₹ 20,338

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Tue 17/3

07:40-11:38

Nonstop6h 58m

San Francisco

Wed 18/3

07:25-15:57

Nonstop5h 32m

₹ 20,796

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Tue 24/2

07:30-17:56

1 stop13h 26m

San Francisco

Mon 2/3

07:10-15:49

Nonstop5h 39m

₹ 21,071

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Wed 4/3

17:35-21:35

Nonstop7h 00m

San Francisco

Tue 17/3

11:00-05:32

1 stop15h 32m

₹ 21,163

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Mon 23/2

20:33-00:25

Nonstop6h 52m

San Francisco

Wed 4/3

20:44-05:15

Nonstop5h 31m

₹ 21,254

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Mon 2/3

06:00-09:58

Nonstop6h 58m

San Francisco

Thu 5/3

23:59-10:49

1 stop7h 50m

₹ 21,346

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Thu 26/2

07:45-11:47

Nonstop7h 02m

San Francisco

Wed 4/3

12:14-23:26

1 stop8h 12m

₹ 21,438

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Thu 26/2

07:45-11:47

Nonstop7h 02m

San Francisco

Wed 4/3

08:00-20:34

1 stop9h 34m

₹ 21,529

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Wed 15/4

20:45-00:27

Nonstop6h 42m

San Francisco

Wed 29/4

13:00-21:41

Nonstop5h 41m

₹ 21,712

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Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Boston to San Francisco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

Other information

What is the cheapest month to fly to San Francisco?

In general, March is the cheapest month to fly from Boston to San Francisco. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around ₹ 30,416. If you aren’t able to travel to San Francisco during the month of March, then flying in September is also cheap. Prices for this month can be found on momondo for an average of ₹ 30,874.

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart from Boston to San Francisco is on a Monday. Travellers who choose to depart for San Francisco on a Monday will often find tickets for as low as ₹ 24,974. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around ₹ 52,675.

What is the cheapest time of day to depart on your flight to San Francisco?

The cheapest time of day to fly to San Francisco is in the evening when flights can be purchased for as low as ₹ 23,726. Flights in the afternoon are often more expensive, with an average ticket price of ₹ 63,393.

What is the cheapest Boston Logan Intl to San Francisco flight route?

Fly from Boston Logan Intl to San Francisco for the best Boston Logan Intl - San Francisco flight prices

How far in advance should I book a flight to San Francisco?

You are more likely to see cheaper flights to San Francisco from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around ₹ 33,714 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Boston for as low as ₹ 28,767 on momondo.

What cabin class options are available on Boston Logan Intl to San Francisco flights?

There are 4 cabin classes available to choose from on Boston Logan Intl to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Boston to San Francisco flights?

You could potentially save up to 26% on your flight if you consider stops on a Boston to San Francisco flight.

How have Boston to San Francisco flight prices changed over time?

As of February 2026, prices for Boston to San Francisco flights are approximately 12% more expensive when compared to flights at the same time last year.

When to book flights from Boston to San Francisco

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to San Francisco according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Boston to San Francisco (BOS to SFO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to San Francisco

Best price found	₹ 40,967
Fastest flight time	7h 00m
Direct flights	Every day
Airports in San Francisco	1 airport

The best flight deal from Boston to San Francisco found on momondo in the last 72 hours is ₹ 40,967

The fastest flight from Boston to San Francisco takes 7h 00m

Direct flights go from Boston to San Francisco every day.

There is 1 airport in San Francisco. From Boston there are direct flights to San Francisco (SFO).

Search flight deals

How far is Boston Logan Intl to San Francisco by plane?
There are 4329.4 km between Boston Logan Intl and San Francisco. Typically, this will take 7h 00m by plane in normal conditions.
When did momondo last update prices for flights from Boston Logan Intl Airport to San Francisco Airport?
Prices for flights from Boston Logan Intl Airport to San Francisco Airport refresh daily.
How many operators does momondo search for flights from Boston Logan Intl Airport to San Francisco Airport?
There are 2 operators available for flights from Boston Logan Intl Airport to San Francisco Airport as of February 2026.
How old do you have to be to fly from Boston Logan Intl Airport to San Francisco Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The necessary travel and health documents for your San Francisco Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Boston to San Francisco?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Boston to San Francisco is Airbus A318/A319/A320/A321 (26.41% of total bookings). The next most popular plane models are Airbus A321neo (25.99%), Boeing 757-200 (21.32%), and Boeing 737 MAX 9 (16.51%).
What is the most popular airline from Boston to San Francisco?
Based on momondo bookings for flights between Boston and San Francisco, the leading airline is JetBlue, making up 66% of the total bookings. Other popular airlines include Delta with 34%.

Best airlines flying from Boston to San Francisco

Compare and see reviews for airlines that fly from Boston to San Francisco with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom ₹ 11,863	Free Cancellation	Rating 7.9 8,132 reviews		Search Delta flights
JetBlue	PriceFrom ₹ 20,760	Free Cancellation	Rating 7.2 2,892 reviews		Search JetBlue flights

Delta Flights From Boston to San Francisco
Delta flies from Boston to San Francisco around 11 times per week, with 8,132 momondo users rating the airline 7.9/10. The cheapest Delta deal from Boston to San Francisco in the last 72 hours was ₹ 11,863 (round-trip), much lower than the average airfare cost of ₹ 24,140 for Delta flights on this route.
JetBlue Flights From Boston to San Francisco
JetBlue is also a popular choice for this route. JetBlue flight deals for Boston to San Francisco start from as low as ₹ 20,760 round-trip, depending on your selected dates, with average JetBlue deals seen on momondo around ₹ 31,879. JetBlue operates 23 flights to San Francisco from Boston in an average week. Users have rated it 7.2/10 across 2,892 reviews.

Menlo Park

Davis

South San Francisco

Fremont

Santa Clara

Palo Alto

San Mateo

Gilroy

Rancho Cordova

Belmont

Bodega Bay

Roseville

Cupertino

Mountain View

Woodland

Lathrop

Daly City

Calistoga

Sunnyvale

Rohnert Park

Why use momondo?

Why should I use momondo to find a flight deal from Boston to San Francisco?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Francisco from Boston.

Can I find flights from Boston to San Francisco with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Francisco from Boston with this policy.

How can momondo help me find flights from Boston to San Francisco?

momondo helps you find the best flight between Boston and San Francisco by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Boston to San Francisco right now. Can momondo alert me if prices change?

Price alerts on flights to San Francisco from Boston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your San Francisco trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

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Cheap flights from Boston to San Francisco from ₹ 10,444

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to San Francisco departing on 24/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names, great deals

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United Airlines flights from Boston to San Francisco

Our best United Airlines deals on Boston to San Francisco flight tickets

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Our best Delta deals on Boston to San Francisco flight tickets

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Use the filters below to find and compare flights from Boston to San Francisco that are best for you.

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How to get the cheapest flight ticket from Boston to San Francisco

What is the cheapest month to fly to San Francisco?

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart from Boston to San Francisco is on a Monday. Travellers who choose to depart for San Francisco on a Monday will often find tickets for as low as ₹ 24,974. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around ₹ 52,675.

What is the cheapest time of day to depart on your flight to San Francisco?

The cheapest time of day to fly to San Francisco is in the evening when flights can be purchased for as low as ₹ 23,726. Flights in the afternoon are often more expensive, with an average ticket price of ₹ 63,393.

What is the cheapest Boston Logan Intl to San Francisco flight route?

Fly from Boston Logan Intl to San Francisco for the best Boston Logan Intl - San Francisco flight prices

How far in advance should I book a flight to San Francisco?

What cabin class options are available on Boston Logan Intl to San Francisco flights?

There are 4 cabin classes available to choose from on Boston Logan Intl to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Boston to San Francisco flights?

You could potentially save up to 26% on your flight if you consider stops on a Boston to San Francisco flight.

How have Boston to San Francisco flight prices changed over time?

As of February 2026, prices for Boston to San Francisco flights are approximately 12% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Boston Logan Intl to San Francisco?

Delta, United Airlines, and JetBlue are the most popular carriers operating from Boston Logan Intl to San Francisco

How often are flights from Boston to San Francisco delayed?

Historically, on average around 16% of flights between Boston and San Francisco have experienced a delay on any given week. The average delay length over the past 12 months has been 171 minutes.

What is the most punctual flight time for Boston to San Francisco flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Boston to San Francisco flights?

According to our data, United Airlines have had the fewest delays on this route over the last 12 months, with about 14% of their flights experiencing any sort of delay.

How many flights depart from Boston to San Francisco on average per day?

24 flights are operational daily from Boston to San Francisco as of February 2026. The most popular departure time for this route is 07:00, with 43% of flights per day taking off at midday.

How many flights depart from Boston to San Francisco on average per week?

173 flights are operational weekly from Boston to San Francisco as of February 2026. The most popular departure day for this route is Sun, with 18% of flights per week taking off on this day.

When to book flights from Boston to San Francisco

Cheap Boston to San Francisco (BOS to SFO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to San Francisco

Best price found

Fastest flight time

Direct flights

Airports in San Francisco

How far is Boston Logan Intl to San Francisco by plane?

When did momondo last update prices for flights from Boston Logan Intl Airport to San Francisco Airport?

How many operators does momondo search for flights from Boston Logan Intl Airport to San Francisco Airport?

How old do you have to be to fly from Boston Logan Intl Airport to San Francisco Airport?

What documentation or ID do you need to fly to San Francisco Airport?

What is the most popular plane model from Boston to San Francisco?

What is the most popular airline from Boston to San Francisco?

Best airlines flying from Boston to San Francisco

Compare and see reviews for airlines that fly from Boston to San Francisco with momondo

Delta Flights From Boston to San Francisco

JetBlue Flights From Boston to San Francisco

Travelling to a place near San Francisco?

Why use momondo?

Why should I use momondo to find a flight deal from Boston to San Francisco?

Can I find flights from Boston to San Francisco with flexible booking policies on momondo?

How can momondo help me find flights from Boston to San Francisco?

I’m not ready to book a flight from Boston to San Francisco right now. Can momondo alert me if prices change?

An easier way to manage your San Francisco trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States