Cheap flights from San Francisco to St. Louis (SFO - STL)

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The best prices from San Francisco to Lambert-St Louis are usually found in October or September, booked 27 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

How to find the cheapest flight from
San Francisco (SFO) to St. Louis (STL)

All the information you need to plan the best SFO to STL flight in 2022: compare San Francisco to St. Louis flight prices with the expected peak season, weather and rainfall in St. Louis.
SFO - STL
Price
$280 - $510
STL
Temperature
32 - 80.6 °F
STL
Rainfall
2.2 - 4.7 inches

Popular in

June

High demand for flights, 28% potential price rise

Cheapest in

October

Best time to find cheap flights, 24% potential price drop

Round-trip from

$280

From San Francisco to Lambert-St Louis

One-way from

$79

One-way flight from San Francisco to Lambert-St Louis

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
When is the cheapest time to fly from San Francisco to St. Louis (SFO - STL)?

It’s optimal to fly from San Francisco to St. Louis in the evening. By choosing this option you can save up to 33% on the cost of your flight, compared to a flight in the afternoon.

What is the cheapest day to fly round-trip from San Francisco to St. Louis?

Departing on a Monday is a good option for securing a great price. You can expect to save up to 23% when planning your travel around this day of the week.

What is the cheapest month to fly from San Francisco to St. Louis?

Flights from San Francisco to St. Louis lean towards being more expensive in June. Prices are generally better when you fly from San Francisco to St. Louis in October, with the cheapest ticket starting at $150.

How far in advance should I book a flight from San Francisco to St. Louis?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 26 days in advance, which can save you up to 31% on flights from San Francisco to St. Louis compared to booking the week you need them. Waiting 26 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $388. For sooner than that we have options available in the next 3 days from $475.

Cheap flights from San Francisco to St. Louis in June, July 2022

The best prices found for SFO to STL flights for June, July
26 Jul - 9 Aug
$203pp
SFO
San Francisco
Frontier
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
 
1 STOP
SFO
San Francisco
26 Jul - 27 Jul
$207pp
SFO
San Francisco
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
SFO
San Francisco
19 Jul - 27 Jul
$212pp
SFO
San Francisco
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
SFO
San Francisco

San Francisco to St. Louis 2022 flight deals

Cheap flights to St. Louis from San Francisco found for this year
23 Aug - 30 Aug
$171pp
SFO
San Francisco
Frontier
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
 
1 STOP
SFO
San Francisco
12 Sep - 19 Sep
$174pp
SFO
San Francisco
Frontier
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
 
1 STOP
SFO
San Francisco
25 Aug - 30 Aug
$177pp
SFO
San Francisco
Frontier
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
 
1 STOP
SFO
San Francisco

Non-stop flights to St. Louis from San Francisco

Save time with San Francisco to St. Louis direct flight deals
21 Sep - 24 Sep
$474pp
SFO
San Francisco
United Airlines
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
Non-Stop
SFO
San Francisco
6 Sep - 12 Sep
$762pp
SFO
San Francisco
United Airlines
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
Non-Stop
SFO
San Francisco
6 Sep - 12 Sep
$772pp
SFO
San Francisco
United Airlines
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
Non-Stop
SFO
San Francisco

Last minute flights from San Francisco to St. Louis

Late deals on round-trip flights to St. Louis from San Francisco, departing today and this week
5 Jul - 27 Jul
$238pp
SFO
San Francisco
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
SFO
San Francisco
6 Jul - 19 Jul
$240pp
SFO
San Francisco
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
SFO
San Francisco
6 Jul - 27 Jul
$243pp
SFO
San Francisco
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
SFO
San Francisco

One-way flights to Lambert-St Louis from San Francisco

The cheapest one-way flights from San Francisco to St. Louis
6:51 pm - 8:04 am
Frontier
1 Stop
11h 13m
SFO - STL
Frontier
$79
Kiwi.com
6:51 pm - 4:00 pm
Multiple Airlines
1 Stop
19h 09m
SFO - STL
Multiple Airlines
$100
Kiwi.com
6:51 pm - 4:00 pm
Multiple Airlines
1 Stop
19h 09m
SFO - STL
Multiple Airlines
$104
Kiwi.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">San Francisco</span> to <span class="emphasized">St. Louis</span> flights.

Flight FAQs

From San Francisco to St. Louis

Which airlines flying from San Francisco to Lambert-St Louis have flexible cancellations due to COVID-19?

Some of the carriers operating flights from San Francisco to Lambert-St Louis that may be offering flexible cancellation policies are Frontier, Delta, and American Airlines. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from San Francisco to St. Louis for under $200 on Cheapflights?

Yes, there are multiple flights from San Francisco to St. Louis for under $200. The cheapest flight booked recently is on Frontier for just $171, but on average you can expect to pay $199.

Are there nonstop flights from San Francisco to St. Louis for under $500 on Cheapflights?

Cheapflights has at least 3 direct flights from San Francisco to St. Louis under $500. A good price for a nonstop flight from San Francisco to St. Louis is less than $669.

Are there last-minute flights available from San Francisco to St. Louis for under $300?

There are currently 20+ open flights from San Francisco to St. Louis within the next 7 days for less than $300.

How popular is this San Francisco to St. Louis flight route?

Flights from San Francisco to Lambert-St Louis have been viewed 18 times in the past calendar month.

What is the cheapest airline to fly from San Francisco to St. Louis round-trip?

Currently priced at $171, Frontier will fly you from San Francisco to St. Louis and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Users have found that Frontier is 53% cheaper than the other options available to this destination.

What are the cheapest flights from San Francisco to St. Louis?

On average you can expect to pay $1,108 for a flight from San Francisco to St. Louis. The cheapest flight overall is $131 while the most popular route, (San Francisco - Lambert-St Louis) is currently priced at $192.

What are the most popular airlines that fly from San Francisco to St. Louis?

The most popular airlines flying from San Francisco to St. Louis are Major Airline, American Airlines and Alaska Airlines. Something to consider prior to booking your flight.

COVID Restrictions

View COVID Travel Restrictions for St. Louis, MO

Do I need a COVID test to fly to St. Louis from San Francisco?

Information is based on travel restrictions for travel to Lambert-St Louis within the United States

Most visitors from San Francisco need to provide a negative COVID-19 test result and/or quarantine to enter Lambert-St Louis.

COVID-19 testing requirements
Visitors from San Francisco are not required to present a negative COVID-19 PCR test or antigen result upon entering Lambert-St Louis.

Quarantine requirements
Visitors from San Francisco are not required to quarantine after entering Lambert-St Louis.

Do I need a test to fly back to San Francisco from St. Louis?

Returning to San Francisco from Lambert-St Louis

COVID-19 testing requirements
Visitors from Lambert-St Louis are not required to present a negative COVID-19 PCR test or antigen result upon entering San Francisco.

Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering San Francisco.

Hide COVID Travel Restrictions for St. Louis, MO

Alternative routes for San Francisco to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for St. Louis

Things to know before you go - useful duration and weather info for your trip from San Francisco to St. Louis.
Average temperature for June in St. Louis
86.0 °F
Avg rainfall for June in St. Louis
4.1 ″

Airports servicing San Francisco

Airports servicing St. Louis

Top 7 airlines flying from San Francisco to Lambert-St Louis

The chart below displays the airlines Cheapflights users traveling from San Francisco to St. Louis choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Juneyao Airlines
$11 $23 No cancel fee 66%

We couldn't confirm the COVID-19 safety measures taken by Juneyao Airlines. Please check directly on their website for additional information.

Spirit Airlines
$108 $239 No cancel fee 65%
Frontier
$122 $312 No cancel fee 62%
American Airlines
$166 $445 No cancel fee 71%
Delta
$183 $497 No cancel fee N/A
Alaska Airlines
$184 $544 No cancel fee 75%
United Airlines
$205 $471 No cancel fee 69%
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