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Cheap flights from St. Louis to San Francisco from $60

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to San Francisco departing on 8/14. 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

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Find the cheapest flights from St. Louis to San Francisco

Cheap round-trip flights

Frontier Logo
2:36 pm - 9:23 pmSTL-SFO
8h 47m1 stop
Frontier Logo
5:45 am - 1:42 pmSFO-STL
5h 57m1 stop
$146Frontier
Find Deal
Thu, Aug 14 - Mon, Aug 18
Frontier Logo
7:55 pm - 12:16 amSTL-SFO
6h 21m1 stop
Frontier Logo
5:45 am - 1:59 pmSFO-STL
6h 14m1 stop
$155Frontier
Find Deal
Thu, Sep 25 - Mon, Oct 6
Frontier Logo
3:02 pm - 9:03 pmSTL-SFO
8h 01m1 stop
Frontier Logo
8:00 am - 4:03 pmSFO-STL
6h 03m1 stop
$160Frontier
Find Deal
Sat, Aug 30 - Sat, Sep 6
Frontier Logo
7:55 pm - 12:16 amSTL-SFO
6h 21m1 stop
Frontier Logo
8:00 am - 4:03 pmSFO-STL
6h 03m1 stop
$168Frontier
Find Deal
Mon, Sep 15 - Sat, Sep 20
Frontier Logo
3:02 pm - 9:03 pmSTL-SFO
8h 01m1 stop
Frontier Logo
5:45 am - 6:02 pmSFO-STL
10h 17m1 stop
$174Frontier
Find Deal
Sat, Aug 23 - Sun, Aug 31
Frontier Logo
7:55 pm - 12:16 amSTL-SFO
6h 21m1 stop
Frontier Logo
5:45 am - 1:53 pmSFO-STL
6h 08m1 stop
$188Frontier
Find Deal
Fri, Sep 12 - Sun, Sep 14
Frontier Logo
7:29 pm - 12:19 amSTL-SFO
6h 50m1 stop
Frontier Logo
6:50 am - 9:11 amSFO-STL
24h 21m1 stop
$201Frontier
Find Deal
Mon, Aug 11 - Tue, Aug 19
Frontier Logo
7:55 pm - 10:30 pmSTL-SFO
28h 35m1 stop
Frontier Logo
6:00 am - 9:07 amSFO-STL
25h 07m1 stop
$202Frontier
Find Deal
Mon, Sep 22 - Tue, Oct 7
Alaska Airlines Logo
6:00 am - 1:44 pmSTL-SFO
9h 44m1 stop
Alaska Airlines Logo
5:12 pm - 5:34 pmSFO-STL
22h 22m2 stops
$298Alaska Airlines
Find Deal
Wed, Sep 17 - Wed, Sep 17
United Airlines Logo
5:41 pm - 7:57 pmSTL-SFO
4h 16mnonstop
United Airlines Logo
12:30 am - 9:28 amSFO-STL
6h 58m1 stop
$303United Airlines
Find Deal
Tue, Aug 5 - Tue, Aug 12

Alaska Airlines flights from St. Louis to San Francisco

Our best Alaska Airlines deals on St. Louis to San Francisco flight tickets
Alaska Airlines
Sep 17
STL6:00 amLambert-St Louis
9h 44m
1 stop
SFO1:44 pmSan Francisco
Sep 17
SFO5:12 pmSan Francisco
22h 22m
2 stops
STL5:34 pmLambert-St Louis
Alaska Airlines
Jul 8
STL3:24 pmLambert-St Louis
10h 33m
2 stops
SFO11:57 pmSan Francisco
Jul 22
SFO8:20 amSan Francisco
8h 15m
1 stop
STL6:35 pmLambert-St Louis
Alaska Airlines
Jul 8
STL3:24 pmLambert-St Louis
10h 33m
2 stops
SFO11:57 pmSan Francisco
Jul 22
SFO7:00 amSan Francisco
9h 35m
1 stop
STL6:35 pmLambert-St Louis

United Airlines flights from St. Louis to San Francisco

Our best United Airlines deals on St. Louis to San Francisco flight tickets
United Airlines
Aug 5
STL5:41 pmLambert-St Louis
4h 16m
SFO7:57 pmSan Francisco
Aug 12
SFO12:30 amSan Francisco
6h 58m
1 stop
STL9:28 amLambert-St Louis
United Airlines
Jul 15
STL6:00 amLambert-St Louis
4h 16m
SFO8:16 amSan Francisco
Jul 21
SFO12:30 amSan Francisco
6h 58m
1 stop
STL9:28 amLambert-St Louis
United Airlines
Jul 14
STL5:41 pmLambert-St Louis
4h 16m
SFO7:57 pmSan Francisco
Jul 15
SFO5:00 amSan Francisco
5h 46m
1 stop
STL12:46 pmLambert-St Louis

See travel insights to San Francisco from

How to get the cheapest flight ticket from St. Louis 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 August is also cheap. Prices for this month can be found on momondo for an average of $332.

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

The cheapest day to depart from St. Louis to San Francisco is on a Thursday when prices can be found for as low as $567. The most expensive day to fly to San Francisco is Monday, with ticket prices averaging around $1,039.

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

Our data shows that the cheapest St. Louis to San Francisco flights are usually those with departure times at noon. Our users have found flights to San Francisco at noon for as low as $457. Flights in the evening are often more expensive with an average ticket price of $1,186.

What is the cheapest Lambert-St Louis to San Francisco flight route?

Fly from Lambert-St Louis to San Francisco for the best Lambert-St Louis - 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 St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $372 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from St. Louis for as low as $306 on momondo.

What cabin class options are available on Lambert-St Louis to San Francisco flights?

There are 4 cabin classes available to choose from on Lambert-St Louis 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 St. Louis to San Francisco flights?

No. A direct flight is the cheapest option for a flight between St. Louis to San Francisco.

How have St. Louis to San Francisco flight prices changed over time?

As of July 2025, prices for St. Louis to San Francisco flights are approximately 18% cheaper when compared to flights at the same time last year.

When to book flights from St. Louis to San Francisco

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to San Francisco according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to San Francisco (STL to SFO) flight deals and tips

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

Best Price Found

$60

Fastest flight time

4h 15m

Direct flights

Every day

Airports in San Francisco

1 airport
The best one-way flight to San Francisco from St. Louis in the past 72 hours is $60. The best round-trip flight deal from St. Louis to San Francisco found on momondo in the last 72 hours is $146.
The fastest flight from St. Louis to San Francisco takes 4h 15m
Direct flights go from St. Louis to San Francisco every day.
There is 1 airport near San Francisco: San Francisco (SFO)

  • How far is Lambert-St Louis to San Francisco by plane?

    There are 1739.7 mi between Lambert-St Louis and San Francisco. In terms of flight time, this usually takes a little over 4h 16m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to San Francisco Airport?

    Prices for flights from Lambert-St Louis Airport to San Francisco Airport are updated daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to San Francisco Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to San Francisco Airport?

    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 Lambert-St Louis Airport to San Francisco Airport.

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

    The required travel and health documents for your San Francisco Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Francisco Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from St. Louis to San Francisco?

  • What is the most popular airline from St. Louis to San Francisco?


Best airlines flying from St. Louis to San Francisco

Compare and see reviews for airlines that fly from St. Louis to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $115Free CancellationRating
5.9
3,289 reviews
Search Frontier flights
DeltaPriceFrom $236Free CancellationRating
8.0
7,974 reviews
Search Delta flights
American AirlinesPriceFrom $236Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $242Free CancellationRating
7.4
8,858 reviews
Search United Airlines flights
SouthwestPriceFrom $309Free CancellationRating
8.0
4,275 reviews
Search Southwest flights
  • Southwest Flights From St. Louis to San Francisco

    Southwest is one of the most popular airlines flying from St. Louis to San Francisco, operating 6 flights/week on average for this route. A good Southwest flight deal for St. Louis to San Francisco starts from $309 round-trip, up to an average price of $432. Our users have rated Southwest at 8.0/10.

  • United Airlines Flights From St. Louis to San Francisco

    Another popular option for St. Louis to San Francisco flights is United Airlines (7.4/10, 8,858 ratings). United Airlines flies from St. Louis to San Francisco around 6 times per week, with deals starting from $242 round-trip and rising to an average price of around $407.


Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Modesto
Hayward
Calistoga
Sonoma
Roseville
Bodega Bay
Santa Clara
Daly City
Big Sur
Fremont
Walnut Creek
South San Francisco
Berkeley
Redwood City
Sunnyvale
Pacific Grove
Vallejo
Half Moon Bay

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis 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 St. Louis.

Can I find flights from St. Louis to San Francisco with flexible booking policies on momondo?

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

How can momondo help me find flights from St. Louis to San Francisco?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to San Francisco.

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

Yes. momondo can track prices for St. Louis to San Francisco flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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1 adult
Sun 7/6
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