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

As of November 2025, 6 flights take off from Boston and land in San Francisco each day. The most common flight departure time for this route is 8:00p.m., with 49% of daily flights taking off at noon.

How often are flights from Boston to San Francisco delayed?

Historically, on average around 15% 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 168 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.

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

As of November 2025, 47 flights take off from Boston and land in San Francisco each week. The most common flight departure day for this route is Sat, with 79% of weekly flights taking off on this day.

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

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

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, Air Canada has had the lowest number of delays on this route over the last 12 months, with no flights being classified as delayed.

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 are refreshed on a daily basis.

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 November 2025.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, 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 travel and health documents you'll need for your trip to San Francisco Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Francisco Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

C$ 165 Cheap Flights from Boston to San Francisco in 2025/26

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4:24 p.m. - 11:48 p.m.BOS-SFO

10h 24m1 stop

7:00 a.m. - 5:52 p.m.SFO-BOS

7h 52m1 stop

C$ 289Alaska Airlines

Find Deal

Thu, 11 Dec - Mon, 15 Dec

6:52 p.m. - 10:48 p.m.BOS-SFO

6h 56mdirect

7:00 a.m. - 3:37 p.m.SFO-BOS

5h 37mdirect

C$ 297Alaska Airlines

Find Deal

Mon, 15 Dec - Wed, 17 Dec

7:55 a.m. - 11:50 a.m.BOS-SFO

6h 55mdirect

4:00 p.m. - 12:42 a.m.SFO-BOS

5h 42mdirect

C$ 298United Airlines

Find Deal

Fri, 16 Jan - Mon, 19 Jan

8:05 p.m. - 11:59 p.m.BOS-SFO

6h 54mdirect

1:00 p.m. - 9:37 p.m.SFO-BOS

5h 37mdirect

C$ 304Delta

Find Deal

Sat, 13 Dec - Tue, 6 Jan

8:14 p.m. - 11:59 p.m.BOS-SFO

6h 45mdirect

3:22 p.m. - 11:55 p.m.SFO-BOS

5h 33mdirect

C$ 307JetBlue

Find Deal

Fri, 12 Dec - Thu, 25 Dec

6:00 a.m. - 11:57 a.m.BOS-SFO

8h 57m1 stop

1:00 p.m. - 9:42 p.m.SFO-BOS

5h 42mdirect

C$ 310United Airlines

Find Deal

Fri, 30 Jan - Tue, 10 Feb

9:25 p.m. - 1:09 a.m.BOS-SFO

6h 44mdirect

9:16 p.m. - 5:50 a.m.SFO-BOS

5h 34mdirect

C$ 311JetBlue

Find Deal

Wed, 26 Nov - Wed, 3 Dec

5:20 a.m. - 11:15 a.m.BOS-SFO

8h 55m1 stop

9:30 p.m. - 8:20 a.m.SFO-BOS

7h 50m1 stop

C$ 324Southwest

Find Deal

Sun, 11 Jan - Wed, 14 Jan

7:45 a.m. - 11:49 a.m.BOS-SFO

7h 04mdirect

7:10 a.m. - 3:51 p.m.SFO-BOS

5h 41mdirect

C$ 325Delta

Find Deal

Wed, 11 Feb - Wed, 18 Feb

5:00 p.m. - 10:30 p.m.BOS-SFO

8h 30m1 stop

5:50 a.m. - 4:05 p.m.SFO-BOS

7h 15m1 stop

C$ 366Southwest

Find Deal

Wed, 3 Dec - Wed, 17 Dec

Alaska Airlines flights from Boston to San Francisco

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

Alaska Airlines

11 Dec

BOS4:24 p.m.Boston Logan Intl

10h 24m

1 stop

SFO11:48 p.m.San Francisco

15 Dec

SFO7:00 a.m.San Francisco

7h 52m

1 stop

BOS5:52 p.m.Boston Logan Intl

C$ 289

Find similar

Alaska Airlines

15 Dec

BOS6:52 p.m.Boston Logan Intl

6h 56m

SFO10:48 p.m.San Francisco

6 Jan

SFO7:25 a.m.San Francisco

5h 47m

BOS4:12 p.m.Boston Logan Intl

C$ 297

Find similar

Alaska Airlines

20 Jan

BOS4:20 p.m.Boston Logan Intl

9h 27m

1 stop

SFO10:47 p.m.San Francisco

27 Jan

SFO7:00 a.m.San Francisco

7h 44m

1 stop

BOS5:44 p.m.Boston Logan Intl

C$ 303

Find similar

United Airlines flights from Boston to San Francisco

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

United Airlines

16 Jan

BOS7:55 a.m.Boston Logan Intl

6h 55m

SFO11:50 a.m.San Francisco

19 Jan

SFO4:00 p.m.San Francisco

5h 42m

BOS12:42 a.m.Boston Logan Intl

C$ 298

Find similar

United Airlines

30 Jan

BOS6:00 a.m.Boston Logan Intl

8h 57m

1 stop

SFO11:57 a.m.San Francisco

10 Feb

SFO1:00 p.m.San Francisco

5h 42m

BOS9:42 p.m.Boston Logan Intl

C$ 310

Find similar

United Airlines

27 Nov

BOS8:00 a.m.Boston Logan Intl

6h 54m

SFO11:54 a.m.San Francisco

1 Dec

SFO11:25 p.m.San Francisco

5h 41m

BOS8:06 a.m.Boston Logan Intl

C$ 321

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Thu 11/12

4:24 p.m.-11:48 p.m.

1 stop10h 24m

San Francisco

Mon 15/12

7:00 a.m.-5:52 p.m.

1 stop7h 52m

C$ 289

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Mon 15/12

6:52 p.m.-10:48 p.m.

Nonstop6h 56m

San Francisco

Wed 17/12

7:00 a.m.-3:37 p.m.

Nonstop5h 37m

C$ 297

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Fri 16/1

7:55 a.m.-11:50 a.m.

Nonstop6h 55m

San Francisco

Mon 19/1

4:00 p.m.-12:42 a.m.

Nonstop5h 42m

C$ 298

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Sat 13/12

8:05 p.m.-11:59 p.m.

Nonstop6h 54m

San Francisco

Tue 6/1

1:00 p.m.-9:37 p.m.

Nonstop5h 37m

C$ 304

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Fri 12/12

8:14 p.m.-11:59 p.m.

Nonstop6h 45m

San Francisco

Thu 25/12

3:22 p.m.-11:55 p.m.

Nonstop5h 33m

C$ 307

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Fri 30/1

6:00 a.m.-11:57 a.m.

1 stop8h 57m

San Francisco

Tue 10/2

1:00 p.m.-9:42 p.m.

Nonstop5h 42m

C$ 310

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Wed 26/11

9:25 p.m.-1:09 a.m.

Nonstop6h 44m

San Francisco

Wed 3/12

9:16 p.m.-5:50 a.m.

Nonstop5h 34m

C$ 311

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Sun 11/1

5:20 a.m.-11:15 a.m.

1 stop8h 55m

San Francisco

Wed 14/1

9:30 p.m.-8:20 a.m.

1 stop7h 50m

C$ 324

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Wed 11/2

7:45 a.m.-11:49 a.m.

Nonstop7h 04m

San Francisco

Wed 18/2

7:10 a.m.-3:51 p.m.

Nonstop5h 41m

C$ 325

BostonSan Francisco

BOS - SFO

BOSSFO

Boston Logan Intl

Wed 3/12

5:00 p.m.-10:30 p.m.

1 stop8h 30m

San Francisco

Wed 17/12

5:50 a.m.-4:05 p.m.

1 stop7h 15m

C$ 366

Flights are sorted by cheapest round-trip flights first.

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?

The cheapest month to fly to San Francisco from Boston is in January. Flight prices, which tend to average around C$ 464, are often lower during this time because this is during the off-season. The month of September is another great option to travel to San Francisco, with average flight prices from Boston averaging around C$ 465.

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 Wednesday. Travellers who choose to depart for San Francisco on a Wednesday will often find tickets for as low as C$ 500. On the other hand, Sunday is the most expensive day to depart from Boston because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 1,719.

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

Flying to San Francisco from Boston in the evening is the least expensive time of day to depart. momondo users have found prices as low as C$ 577 when looking at flights departing in the evening. In contrast, the most expensive time of day to depart to San Francisco is in the afternoon when prices are around C$ 760.

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 C$ 511 when searching weeks out. 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 C$ 458 on momondo.

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

There are 3 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 75% 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 November 2025, prices for Boston to San Francisco flights are approximately 1% 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 round-trip 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

Fastest flight time	6h 40m
Direct flights	Every day
Airports in San Francisco	1 airport

The fastest flight from Boston to San Francisco takes 6h 40m

Direct flights go from Boston to San Francisco every day.

There is 1 airport near San Francisco: San Francisco (SFO)

Search flight deals

How far is Boston Logan Intl to San Francisco by plane?
The distance between Boston Logan Intl and San Francisco is about 4329.4 km. A reasonable flight in good conditions will take 6h 44m.
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 are refreshed on a daily basis.
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 November 2025.
How old do you have to be to fly from Boston Logan Intl Airport to San Francisco Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, 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 travel and health documents you'll need for your trip to San Francisco Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Francisco Airport. It is always advisable to seek 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 A321neo (26.65% of total bookings). The next most popular plane models are Boeing 737 MAX 9 (26.64%), Airbus A318/A319/A320/A321 (18.03%), and Boeing 737 (10.65%).
What is the most popular airline from Boston to San Francisco?
momondo data reveals that the most frequently booked airline on the route from Boston to San Francisco is JetBlue, representing 54% of all bookings. The subsequent popular airline is Delta at 46%.

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 C$ 180	Free Cancellation	Rating 7.9 7,996 reviews		Search Delta flights
JetBlue	PriceFrom C$ 397	Free Cancellation	Rating 7.2 2,906 reviews		Search JetBlue flights

Delta Flights From Boston to San Francisco
The lowest priced Delta flight from Boston to San Francisco from the last 72 hours was C$ 180. Generally, Delta has 2 flights on this route every week with an average price of C$ 357. Delta is rated 7.9/10 by our users.
JetBlue Flights From Boston to San Francisco
Across 2,906 JetBlue reviews on momondo, the average score is 7.2/10. JetBlue flies from Boston to San Francisco about 2 times each week, with ticket deals ranging from C$ 397 to C$ 760. Price data is based on momondo searches in the last 72 hours.

San Mateo

Belmont

Los Altos

San Bruno

Santa Cruz

Newark

Fremont

Carmel-by-the-Sea

Turlock

South San Francisco

Palo Alto

Sunnyvale

Santa Clara

Cupertino

Mill Valley

Morgan Hill

Los Banos

Mountain View

Pacifica

Woodland

Why use momondo?

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

It is quick and easy to find Boston to San Francisco flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Francisco that suits you.

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

Yes. All flights to San Francisco from Boston on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to San Francisco from Boston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to San Francisco, momondo offers a useful price alert feature which will track prices for flights to San Francisco from Boston and alert you when they change.

An easier way to manage your San Francisco trip

We make it super easy to schedule, organize 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 C$ 181

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 29/1. 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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Alaska Airlines flights from Boston to San Francisco

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

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

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See travel insights to San Francisco from

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

What is the cheapest month to fly to San Francisco?

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

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

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 3 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 75% 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 November 2025, prices for Boston to San Francisco flights are approximately 1% 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, Alaska Airlines, and United Airlines 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 15% 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 168 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, Air Canada has had the lowest number of delays on this route over the last 12 months, with no flights being classified as delayed.

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

As of November 2025, 6 flights take off from Boston and land in San Francisco each day. The most common flight departure time for this route is 8:00p.m., with 49% of daily flights taking off at noon.

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

As of November 2025, 47 flights take off from Boston and land in San Francisco each week. The most common flight departure day for this route is Sat, with 79% of weekly flights 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

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, organize 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

Airports servicing California