What is the cheapest airline that flies from United States to San Francisco?

United Airlines, Frontier, and Alaska Airlines are the most popular carriers operating from United States to San Francisco

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

421 flights are operational daily from United States to San Francisco as of November 2025. The most popular departure time for this route is 8:00AM, with 40% of flights per day taking off at noon.

What airlines fly to San Francisco?

United Airlines, Frontier and Alaska Airlines are the top three most popular airlines that fly to San Francisco from United States according to our data. United Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to San Francisco. Keep in mind that there are 11 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to San Francisco?

Flight times from United States to San Francisco vary, but if you’re flying out of Los Angeles and flying into San Francisco (one of the most popular routes), then the duration is 1h 24m on average. Another popular route from United States to San Francisco is flying from Miami to San Francisco, which will take roughly 6h 24m. Keep in mind that layovers or delays could extend your travel time.

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

2,951 flights are operational weekly from United States to San Francisco as of November 2025. The most popular departure day for this route is Thu, with 20% of flights per week taking off on this day.

When did momondo last update prices for flights from United States to San Francisco Airport?

Prices for flights from United States to San Francisco Airport are refreshed on a daily basis.

How many operators does momondo search for flights from United States to San Francisco Airport?

As of November 2025, there are 10 operators available to choose from for flights from United States to San Francisco Airport.

How old do you have to be to fly from United States 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 United States 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.

$39 Cheap Flights from the United States to San Francisco in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from the United States to San Francisco

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from the United States to San Francisco

Enter your travel dates to find the best prices.

6:00 am - 7:24 amONT-SFO

1h 24mnonstop

10:55 am - 12:18 pmSFO-ONT

1h 23mnonstop

$72United Airlines

Find Deal

Thu, Dec 4 - Thu, Dec 4

5:53 pm - 7:27 pmLAX-SFO

1h 34mnonstop

10:41 am - 12:11 pmSFO-LAX

1h 30mnonstop

$76Frontier

Find Deal

Thu, Jan 15 - Fri, Jan 16

6:00 am - 7:24 amONT-SFO

1h 24mnonstop

4:16 pm - 5:37 pmSFO-ONT

1h 21mnonstop

$77United Airlines

Find Deal

Wed, Dec 3 - Sat, Dec 6

6:21 pm - 7:53 pmLAX-SFO

1h 32mnonstop

10:10 pm - 11:41 pmSFO-LAX

1h 31mnonstop

$78Frontier

Find Deal

Mon, Dec 8 - Thu, Dec 11

6:00 am - 7:29 amLAX-SFO

1h 29mnonstop

3:17 pm - 4:44 pmSFO-LAX

1h 27mnonstop

$100Alaska Airlines

Find Deal

Wed, Dec 3 - Wed, Dec 3

6:00 am - 7:30 amLAX-SFO

1h 30mnonstop

8:25 am - 9:59 amSFO-LAX

1h 34mnonstop

$101Delta

Find Deal

Thu, Dec 4 - Mon, Dec 8

10:00 am - 11:29 amLAX-SFO

1h 29mnonstop

6:00 am - 7:30 amSFO-LAX

1h 30mnonstop

$102Delta

Find Deal

Thu, Dec 4 - Mon, Dec 8

5:03 pm - 6:30 pmLAX-SFO

1h 27mnonstop

3:26 pm - 4:55 pmSFO-LAX

1h 29mnonstop

$118American Airlines

Find Deal

Thu, Dec 4 - Mon, Dec 8

5:50 pm - 9:17 pmSEA-SFO

3h 27m1 stop

2:21 pm - 4:36 pmSFO-SEA

2h 15mnonstop

$123Alaska Airlines

Find Deal

Tue, Dec 2 - Wed, Dec 10

9:30 pm - 11:25 pmDFW-SFO

3h 55mnonstop

12:10 pm - 5:46 pmSFO-DFW

3h 36mnonstop

$193American Airlines

Find Deal

Fri, Dec 5 - Sat, Dec 6

Frontier flights from United States to San Francisco

Our best Frontier deals on United States to San Francisco flight tickets

Frontier

Jan 15

LAX5:53 pmLos Angeles

1h 34m

SFO7:27 pmSan Francisco

Jan 16

SFO10:41 amSan Francisco

1h 30m

LAX12:11 pmLos Angeles

$76

Find similar

Frontier

Dec 8

LAX6:21 pmLos Angeles

1h 32m

SFO7:53 pmSan Francisco

Dec 11

SFO10:10 pmSan Francisco

1h 31m

LAX11:41 pmLos Angeles

$78

Find similar

Frontier

Nov 21

ONT9:59 pmOntario

1h 30m

SFO11:29 pmSan Francisco

Dec 4

SFO9:03 pmSan Francisco

1h 26m

ONT10:29 pmOntario

$79

Find similar

Delta flights from United States to San Francisco

Our best Delta deals on United States to San Francisco flight tickets

Delta

Dec 4

LAX6:00 amLos Angeles

1h 30m

SFO7:30 amSan Francisco

Dec 8

SFO8:25 amSan Francisco

1h 34m

LAX9:59 amLos Angeles

$101

Find similar

Delta

Dec 4

LAX10:00 amLos Angeles

1h 29m

SFO11:29 amSan Francisco

Dec 8

SFO6:00 amSan Francisco

1h 30m

LAX7:30 amLos Angeles

$102

Find similar

Delta

Feb 25

LAX1:37 pmLos Angeles

1h 28m

SFO3:05 pmSan Francisco

Mar 11

SFO6:00 amSan Francisco

1h 30m

LAX7:30 amLos Angeles

$109

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Thu 12/4

6:00 am-7:24 am

Nonstop1h 24m

San Francisco

Thu 12/4

10:55 am-12:18 pm

Nonstop1h 23m

$72

Los AngelesSan Francisco

LAX - SFO

LAXSFO

Los Angeles

Thu 1/15

5:53 pm-7:27 pm

Nonstop1h 34m

San Francisco

Fri 1/16

10:41 am-12:11 pm

Nonstop1h 30m

$76

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Wed 12/3

6:00 am-7:24 am

Nonstop1h 24m

San Francisco

Sat 12/6

4:16 pm-5:37 pm

Nonstop1h 21m

$77

Los AngelesSan Francisco

LAX - SFO

LAXSFO

Los Angeles

Mon 12/8

6:21 pm-7:53 pm

Nonstop1h 32m

San Francisco

Thu 12/11

10:10 pm-11:41 pm

Nonstop1h 31m

$78

Los AngelesSan Francisco

LAX - SFO

LAXSFO

Los Angeles

Wed 12/3

6:00 am-7:29 am

Nonstop1h 29m

San Francisco

Wed 12/3

3:17 pm-4:44 pm

Nonstop1h 27m

$100

Los AngelesSan Francisco

LAX - SFO

LAXSFO

Los Angeles

Thu 12/4

6:00 am-7:30 am

Nonstop1h 30m

San Francisco

Mon 12/8

8:25 am-9:59 am

Nonstop1h 34m

$101

Los AngelesSan Francisco

LAX - SFO

LAXSFO

Los Angeles

Thu 12/4

10:00 am-11:29 am

Nonstop1h 29m

San Francisco

Mon 12/8

6:00 am-7:30 am

Nonstop1h 30m

$102

Los AngelesSan Francisco

LAX - SFO

LAXSFO

Los Angeles

Thu 12/4

5:03 pm-6:30 pm

Nonstop1h 27m

San Francisco

Mon 12/8

3:26 pm-4:55 pm

Nonstop1h 29m

$118

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 12/2

5:50 pm-9:17 pm

1 stop3h 27m

San Francisco

Wed 12/10

2:21 pm-4:36 pm

Nonstop2h 15m

$123

DallasSan Francisco

DFW - SFO

DFWSFO

Dallas/Fort Worth

Fri 12/5

9:30 pm-11:25 pm

Nonstop3h 55m

San Francisco

Sat 12/6

12:10 pm-5:46 pm

Nonstop3h 36m

$193

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 United States 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

Other information

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $357.

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

The cheapest day to depart from United States to San Francisco is on a Thursday when prices can be found for as low as $415. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around $587.

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

Our data shows that the cheapest United States to San Francisco flights are usually those with departure times in the evening. Our users have found flights to San Francisco in the evening for as low as $390. Flights in the afternoon are often more expensive with an average ticket price of $510.

What is the cheapest United States to San Francisco flight route?

Fly from Las Vegas Harry Reid Intl to San Francisco for the best United States - 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 United States when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $391 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from United States for as low as $349 on momondo.

What cabin class options are available on United States to San Francisco flights?

There are 4 cabin classes available to choose from on United States 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 United States to San Francisco flights?

No. A direct flight is the cheapest option for a flight between United States to San Francisco.

Cheap United States to San Francisco flight deals and tips

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

Best Price Found	$44
Fastest flight time	1h 20m
Direct flights	Every day
Airports in San Francisco	1 airport

The best one-way flight to San Francisco from United States in the past 72 hours is $44. The best round-trip flight deal from United States to San Francisco found on momondo in the last 72 hours is $108.

The fastest flight from United States to San Francisco takes 1h 20m

Direct flights go from United States to San Francisco every day.

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

Search flight deals

When did momondo last update prices for flights from United States to San Francisco Airport?
Prices for flights from United States to San Francisco Airport are refreshed on a daily basis.
How many operators does momondo search for flights from United States to San Francisco Airport?
As of November 2025, there are 10 operators available to choose from for flights from United States to San Francisco Airport.
How old do you have to be to fly from United States 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 United States 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 United States to San Francisco?
Based on momondo bookings for flights between United States and San Francisco, the leading plane model is Boeing 737 MAX 8, making up 10.80% of the total bookings. Other popular models include Boeing 737 MAX 9 with 9.88%, Boeing 737-800 with 9.76%, and Boeing 737-900 with 7.57%.

Best airlines flying from United States to San Francisco

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

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $27	Free Cancellation	Rating 6.3 8,114 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $38	Free Cancellation	Rating 5.8 3,116 reviews	Search Frontier flights
Hawaiian Airlines	PriceFrom $48	Free Cancellation	Rating 7.8 2,804 reviews	Search Hawaiian Airlines flights
Delta	PriceFrom $94	Free Cancellation	Rating 7.9 8,004 reviews	Search Delta flights
Southwest	PriceFrom $95	Free Cancellation	Rating 8.0 4,240 reviews	Search Southwest flights
Alaska Airlines	PriceFrom $97	Free Cancellation	Rating 8.0 11,243 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $97	Free Cancellation	Rating 7.4 9,003 reviews	Search United Airlines flights
JetBlue	PriceFrom $106	Free Cancellation	Rating 7.2 2,907 reviews	Search JetBlue flights
American Airlines	PriceFrom $109	Free Cancellation	Rating 7.2 11,041 reviews	Search American Airlines flights
Sun Country Air	PriceFrom $141	Free Cancellation	Rating 6.9 335 reviews	Search Sun Country Air flights

Santa Cruz

Carmel-by-the-Sea

Modesto

Sonoma

Bodega Bay

Roseville

Calistoga

Hayward

Big Sur

Santa Clara

Daly City

Fremont

Berkeley

Vallejo

Walnut Creek

Half Moon Bay

Salinas

Livermore

Turlock

South San Francisco

Why use momondo?

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

It is quick and easy to find United States 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 United States to San Francisco with flexible booking policies on momondo?

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

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

momondo helps you find the best flight between United States 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 United States to San Francisco right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of United States to San Francisco flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Sat 12/6

Sat 12/13

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Airports servicing California

Popular cities in the United States

Flights to New Yorkfrom $44

Flights to Los Angelesfrom $49

Flights to Miamifrom $49

Flights to Chicagofrom $54

Flights to Orlandofrom $49

Flights to Las Vegasfrom $42

Flights to Washington, D.C.from $49

Flights to Bostonfrom $49

Flights to Atlantafrom $40

Flights to Dallasfrom $59

Flights to Seattlefrom $58

Flights to Denverfrom $57

Cheap flights from the United States to San Francisco from $39

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from the United States to San Francisco

Recent round-trip flight deals from the United States to San Francisco

Recent one-way flight deals from the United States to San Francisco

Recent last minute flight deals from the United States to San Francisco

Recent direct flight deals from the United States to San Francisco

Frontier flights from United States to San Francisco

Our best Frontier deals on United States to San Francisco flight tickets

Delta flights from United States to San Francisco

Our best Delta deals on United States to San Francisco flight tickets

momondo Fare Finder

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

See travel insights to San Francisco from

How to get the cheapest flight ticket from United States 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?

If you aren’t able to travel to San Francisco during the month of February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $357.

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

The cheapest day to depart from United States to San Francisco is on a Thursday when prices can be found for as low as $415. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around $587.

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

Our data shows that the cheapest United States to San Francisco flights are usually those with departure times in the evening. Our users have found flights to San Francisco in the evening for as low as $390. Flights in the afternoon are often more expensive with an average ticket price of $510.

What is the cheapest United States to San Francisco flight route?

Fly from Las Vegas Harry Reid Intl to San Francisco for the best United States - San Francisco flight prices

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

What cabin class options are available on United States to San Francisco flights?

There are 4 cabin classes available to choose from on United States 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 United States to San Francisco flights?

No. A direct flight is the cheapest option for a flight between United States to San Francisco.

What is the cheapest airline that flies from United States to San Francisco?

United Airlines, Frontier, and Alaska Airlines are the most popular carriers operating from United States to San Francisco

What airlines fly to San Francisco?

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

421 flights are operational daily from United States to San Francisco as of November 2025. The most popular departure time for this route is 8:00AM, with 40% of flights per day taking off at noon.

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

2,951 flights are operational weekly from United States to San Francisco as of November 2025. The most popular departure day for this route is Thu, with 20% of flights per week taking off on this day.

How long does it take to fly to San Francisco?

Cheap United States to San Francisco flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in San Francisco

When did momondo last update prices for flights from United States to San Francisco Airport?

How many operators does momondo search for flights from United States to San Francisco Airport?

How old do you have to be to fly from United States 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 United States to San Francisco?

Best airlines flying from United States to San Francisco

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

Traveling to a place near San Francisco?

Why use momondo?

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

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

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

I’m not ready to book a flight from United States 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