Latest deals
Insights
FAQs
Reviews
Price Alerts

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

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to the United States departing on 10/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from San Francisco to the United States

Cheap round-trip flights

Frontier Logo
10:11 pm - 11:38 pmSFO-ONT
1h 27mnonstop
Frontier Logo
10:40 pm - 12:15 amONT-SFO
1h 35mnonstop
$72Frontier
Find Deal
mån, sep 29 - fre, okt 3
Frontier Logo
10:23 am - 11:54 amSFO-LAX
1h 31mnonstop
Frontier Logo
1:52 pm - 3:29 pmLAX-SFO
1h 37mnonstop
$73Frontier
Find Deal
tors, okt 30 - mån, nov 3
United Airlines Logo
10:45 am - 12:13 pmSFO-ONT
1h 28mnonstop
United Airlines Logo
6:36 pm - 7:55 pmONT-SFO
1h 19mnonstop
$77United Airlines
Find Deal
mån, okt 13 - mån, okt 20
United Airlines Logo
9:30 pm - 10:51 pmSFO-ONT
1h 21mnonstop
United Airlines Logo
6:00 am - 7:24 amONT-SFO
1h 24mnonstop
$88United Airlines
Find Deal
sön, nov 16 - lör, nov 22
Alaska Airlines Logo
10:18 pm - 11:59 pmSFO-LAS
1h 41mnonstop
Alaska Airlines Logo
6:40 am - 8:20 amLAS-SFO
1h 40mnonstop
$114Alaska Airlines
Find Deal
sön, nov 23 - ons, nov 26
Alaska Airlines Logo
9:00 am - 10:43 amSFO-LAS
1h 43mnonstop
Alaska Airlines Logo
11:37 am - 1:25 pmLAS-SFO
1h 48mnonstop
$117Alaska Airlines
Find Deal
tis, dec 23 - lör, dec 27
Delta Logo
8:20 am - 9:55 amSFO-LAX
1h 35mnonstop
Delta Logo
8:30 pm - 9:57 pmLAX-SFO
1h 27mnonstop
$117Delta
Find Deal
tors, okt 30 - mån, nov 3
American Airlines Logo
10:20 am - 11:50 amSFO-LAX
1h 30mnonstop
American Airlines Logo
6:45 pm - 8:14 pmLAX-SFO
1h 29mnonstop
$118American Airlines
Find Deal
tors, okt 30 - mån, nov 3
Delta Logo
5:50 am - 7:19 amSFO-LAX
1h 29mnonstop
Delta Logo
4:25 pm - 5:45 pmLAX-SFO
1h 20mnonstop
$122Delta
Find Deal
sön, okt 12 - tis, okt 14
American Airlines Logo
9:00 am - 2:59 pmSFO-SEA
5h 59m1 stop
American Airlines Logo
11:04 am - 4:55 pmSEA-SFO
5h 51m1 stop
$159American Airlines
Find Deal
ons, okt 15 - ons, okt 22

Delta flights from San Francisco to United States

Our best Delta deals on San Francisco to United States flight tickets
Delta
Oct 30
SFO8:20 amSan Francisco
1h 35m
LAX9:55 amLos Angeles
Nov 3
LAX8:30 pmLos Angeles
1h 27m
SFO9:57 pmSan Francisco
$117
Find similar
Delta
Oct 12
SFO5:50 amSan Francisco
1h 29m
LAX7:19 amLos Angeles
Oct 14
LAX4:25 pmLos Angeles
1h 20m
SFO5:45 pmSan Francisco
$122
Find similar
Delta
Sep 30
SFO11:00 pmSan Francisco
6h 46m
1 stop
LGA8:46 amNew York LaGuardia
Oct 6
LGA5:00 pmNew York LaGuardia
10h 05m
1 stop
SFO12:05 amSan Francisco
$287
Find similar

Frontier flights from San Francisco to United States

Our best Frontier deals on San Francisco to United States flight tickets
Frontier
Sep 29
SFO10:11 pmSan Francisco
1h 27m
ONT11:38 pmOntario
Oct 3
ONT10:40 pmOntario
1h 35m
SFO12:15 amSan Francisco
$72
Find similar
Frontier
Oct 30
SFO10:23 amSan Francisco
1h 31m
LAX11:54 amLos Angeles
Nov 3
LAX1:52 pmLos Angeles
1h 37m
SFO3:29 pmSan Francisco
$73
Find similar
Frontier
Oct 11
SFO12:00 pmSan Francisco
1h 32m
LAX1:32 pmLos Angeles
Nov 15
LAX6:29 pmLos Angeles
1h 41m
SFO8:10 pmSan Francisco
$74
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco to United States 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, momondo users made 832,500 searches. Data last updated september 16, 2025.
Use the filters below to find and compare flights from San Francisco to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoOntario

SFO - ONT

SFOONT

San Francisco

mån 9/29

10:11 pm-11:38 pm

Nonstop1h 27m

Ontario

fre 10/3

10:40 pm-12:15 am

Nonstop1h 35m

$72

San FranciscoLos Angeles

SFO - LAX

SFOLAX

San Francisco

tors 10/30

10:23 am-11:54 am

Nonstop1h 31m

Los Angeles

mån 11/3

1:52 pm-3:29 pm

Nonstop1h 37m

$73

San FranciscoOntario

SFO - ONT

SFOONT

San Francisco

mån 10/13

10:45 am-12:13 pm

Nonstop1h 28m

Ontario

mån 10/20

6:36 pm-7:55 pm

Nonstop1h 19m

$77

San FranciscoOntario

SFO - ONT

SFOONT

San Francisco

sön 11/16

9:30 pm-10:51 pm

Nonstop1h 21m

Ontario

lör 11/22

6:00 am-7:24 am

Nonstop1h 24m

$88

San FranciscoLas Vegas

SFO - LAS

SFOLAS

San Francisco

sön 11/23

10:18 pm-11:59 pm

Nonstop1h 41m

Las Vegas Harry Reid Intl

ons 11/26

6:40 am-8:20 am

Nonstop1h 40m

$114

San FranciscoLas Vegas

SFO - LAS

SFOLAS

San Francisco

tis 12/23

9:00 am-10:43 am

Nonstop1h 43m

Las Vegas Harry Reid Intl

lör 12/27

11:37 am-1:25 pm

Nonstop1h 48m

$117

San FranciscoLos Angeles

SFO - LAX

SFOLAX

San Francisco

tors 10/30

8:20 am-9:55 am

Nonstop1h 35m

Los Angeles

mån 11/3

8:30 pm-9:57 pm

Nonstop1h 27m

$117

San FranciscoLos Angeles

SFO - LAX

SFOLAX

San Francisco

tors 10/30

10:20 am-11:50 am

Nonstop1h 30m

Los Angeles

mån 11/3

6:45 pm-8:14 pm

Nonstop1h 29m

$118

San FranciscoLos Angeles

SFO - LAX

SFOLAX

San Francisco

sön 10/12

5:50 am-7:19 am

Nonstop1h 29m

Los Angeles

tis 10/14

4:25 pm-5:45 pm

Nonstop1h 20m

$122

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

ons 10/15

9:00 am-2:59 pm

1 stop5h 59m

Seattle/Tacoma Intl

ons 10/22

11:04 am-4:55 pm

1 stop5h 51m

$159

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to the United States from

How to get the cheapest flight ticket from San Francisco to United States

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 United States?

In general, February is the cheapest month to fly from San Francisco to United States. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $322. If you aren’t able to travel during the month of February, then book flights to United States from San Francisco during March instead. Flights to United States in March, while not as cheap as those in February, still average around $342.

What is the cheapest day to depart on your flight to United States?

According to our data, Wednesday is the cheapest day to fly to United States from San Francisco. The lowest ticket price found for a Wednesday departure recently was $443. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $572. These prices are subject to change though, so be sure to set up a Price Alert for flights to United States.

What is the cheapest time of day to depart on your flight to United States?

The cheapest time of day to fly to United States is in the afternoon when flights can be purchased for as low as $396. Try not to purchase tickets in the morning because they tend to be around $520. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

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

How far in advance should I book a flight to United States?

You are more likely to see cheaper flights to United States from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to United States for around $391 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United States from San Francisco for as low as $348 on momondo.

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

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

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

Cheap San Francisco to United States flight deals and tips

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

Best Price Found

$58

Fastest flight time

1h 20m

Direct flights

Every day

Airports in United States

2 airports
The best one-way flight to United States from San Francisco in the past 72 hours is $58. The best round-trip flight deal from San Francisco to United States found on momondo in the last 72 hours is $96.
The fastest flight from San Francisco to United States takes 1h 20m
Direct flights go from San Francisco to United States every day.
There are 2 airports near United States: Los Angeles (LAX), Ontario (ONT)
Search flight deals

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Francisco Airport to United States.

  • What documentation or ID do you need to fly to United States?

    The travel and health documents required for your trip to United States can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United States. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from San Francisco to United States?

Best airlines flying from San Francisco to United States

Compare and see reviews for airlines that fly from San Francisco to United States with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $30Free CancellationRating
6.3
8,019 reviews
Search Spirit Airlines flights
FrontierPriceFrom $38Free CancellationRating
5.8
3,174 reviews
Search Frontier flights
Hawaiian AirlinesPriceFrom $68Free CancellationRating
7.8
2,724 reviews
Search Hawaiian Airlines flights
DeltaPriceFrom $68Free CancellationRating
7.9
7,957 reviews
Search Delta flights
Allegiant AirPriceFrom $82Free CancellationRating
7.2
699 reviews
Search Allegiant Air flights
SouthwestPriceFrom $97Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $98Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $106Free CancellationRating
7.4
8,924 reviews
Search United Airlines flights
American AirlinesPriceFrom $116Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
JetBluePriceFrom $130Free CancellationRating
7.2
2,914 reviews
Search JetBlue flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Francisco to United States. momondo saves you time and could save you money on your trip.

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

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

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

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

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

Of course. momondo tracks the price of San Francisco to United States 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 United States 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
tors 10/16
tors 10/23
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo
Flights to New Yorkfrom $49
Flights to Los Angelesfrom $49
Flights to Miamifrom $49
Flights to Chicagofrom $49
Flights to Orlandofrom $59
Flights to Las Vegasfrom $49
Flights to San Franciscofrom $58
Flights to Washington, D.C.from $54
Flights to Bostonfrom $62
Flights to Atlantafrom $49
Flights to Dallasfrom $68
Flights to Seattlefrom $69