St. Louis

$51+ Cheap flights from San Francisco to St. Louis (SFO - STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — STL
fev 25 — mar 41
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The best prices from San Francisco to Lambert-St Louis are usually found in January or April, booked 81 days in advance, depart on a Wednesday or Thursday and return on a Thursday

Cheap flight deals from San Francisco to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated fevereiro 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$262
(Trip.com)

One-way from

$51
(Trip.com)

Popular in

June

Cheapest in

January

Average price

$410

Good round-trip deal

$373 or less

Good one-way deal

$179 or less
Provider with most accurate pricing for San Francisco-Lambert-St Louis flight deals.
Provider most trusted by Cheapflights users for San Francisco-Lambert-St Louis flights.
From San Francisco to Lambert-St Louis
One-way flight from San Francisco to Lambert-St Louis
Highest demand for flights based on searches. 3% potential increase in price ($14 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in February 2025
Price to beat on a round-trip flight from San Francisco to Lambert-St Louis.
Price to beat on a one-way flight from San Francisco to Lambert-St Louis.

Find flight deals from San Francisco to St. Louis

Cheapest flights from San Francisco to St. Louis
Explore the most affordable flight options available from San Francisco to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on fevereiro 20, 2025.

This Trip.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 4/176:00 amSFO - STL
1 stop25h 06mFrontier
qui 4/249:55 pmSTL - SFO
1 stop11h 50mFrontier
Deal found 2/19$262
This Orbitz deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 4/107:47 pmSFO - STL
1 stop11h 19mMultiple Airlines
seg 4/146:44 amSTL - SFO
2 stops14h 42mMultiple Airlines
Deal found 2/18$283
This United Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 4/1610:45 amSFO - STL
Nonstop4h 07mUnited Airlines
qui 4/245:54 pmSTL - SFO
Nonstop4h 28mUnited Airlines
Deal found 2/19$298
This Delta deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 4/29:21 amSFO - STL
2 stops9h 45mDelta
ter 4/87:40 amSTL - SFO
2 stops10h 10mDelta
Deal found 2/19$311
This Alaska Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 4/22:39 pmSFO - STL
1 stop7h 20mAlaska Airlines
ter 4/83:11 pmSTL - SFO
1 stop8h 58mAlaska Airlines
Deal found 2/19$316
This American Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 4/1612:47 amSFO - STL
1 stop7h 46mAmerican Airlines
sáb 4/265:45 amSTL - SFO
1 stop7h 23mAmerican Airlines
Deal found 2/19$320
This Southwest deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 4/177:55 pmSFO - STL
1 stop11h 40mSouthwest
sáb 4/262:40 pmSTL - SFO
Nonstop4h 20mSouthwest
Deal found 2/19$326

Find flights from San Francisco to St. Louis within your budget

Customize your flight search to find flights from San Francisco to St. Louis 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, Cheapflights users made 2,558,603 searches. Data last updated fevereiro 20, 2025.

Fly from

San Francisco

Fly to

St. Louis

Route

Depart

Return

Price

San FranciscoSt. Louis

SFO - STL

SFOSTL

San Francisco

qui 4/17

6:00 am-9:06 am

1 stop25h 06m

Lambert-St Louis

qui 4/24

9:55 pm-7:45 am

1 stop11h 50m

$262

San FranciscoSt. Louis

SFO - STL

SFOSTL

San Francisco

qui 4/10

7:47 pm-9:06 am

1 stop11h 19m

Lambert-St Louis

seg 4/14

6:44 am-7:26 pm

2 stops14h 42m

$283

San FranciscoSt. Louis

SFO - STL

SFOSTL

San Francisco

qua 4/16

10:45 am-4:52 pm

Nonstop4h 07m

Lambert-St Louis

qui 4/24

5:54 pm-8:22 pm

Nonstop4h 28m

$298

San FranciscoSt. Louis

SFO - STL

SFOSTL

San Francisco

qua 4/2

3:15 pm-11:03 pm

1 stop5h 48m

Lambert-St Louis

ter 4/8

7:40 am-3:50 pm

2 stops10h 10m

$301

San FranciscoSt. Louis

SFO - STL

SFOSTL

San Francisco

qua 4/2

2:39 pm-11:59 pm

1 stop7h 20m

Lambert-St Louis

ter 4/8

3:11 pm-10:09 pm

1 stop8h 58m

$316

San FranciscoSt. Louis

SFO - STL

SFOSTL

San Francisco

qua 4/16

12:47 am-10:33 am

1 stop7h 46m

Lambert-St Louis

sáb 4/26

5:45 am-11:08 am

1 stop7h 23m

$320

San FranciscoSt. Louis

SFO - STL

SFOSTL

San Francisco

qui 4/17

7:55 pm-9:35 am

1 stop11h 40m

Lambert-St Louis

sáb 4/26

2:40 pm-5:00 pm

Nonstop4h 20m

$326

San FranciscoSt. Louis

SFO - STL

SFOSTL

San Francisco

ter 3/25

7:26 pm-9:16 am

1 stop11h 50m

$51

San FranciscoSt. Louis

SFO - STL

SFOSTL

San Francisco

seg 5/5

4:48 pm-10:45 pm

Nonstop3h 57m

$149

San FranciscoSt. Louis

SFO - STL

SFOSTL

San Francisco

ter 3/25

7:35 am-11:59 pm

2 stops14h 24m

$157

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 15 results
1
2

Compare providers for flights from San Francisco to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to St. Louis in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Francisco-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Francisco to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from San Francisco with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from San Francisco to St. Louis

Get recent, data-driven insights about flights from San Francisco to St. Louis including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to St. Louis. Price data was last updated on February 14, 2025.

To ensure you get the cheapest price possible for a flight from San Francisco to St. Louis, you should look to book at least 81 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from San Francisco to St. Louis?

Currently, August is the cheapest month in which you can book a flight from San Francisco to St. Louis (average of $311). Flying from San Francisco to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SFO to STL?

Find hourly flight availability from San Francisco to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated fevereiro 20, 2025.

It’s optimal to fly from San Francisco to St. Louis at noon. By choosing this option you can save up to 9% on the cost of your flight, compared to a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from San Francisco to St. Louis. Price data was last updated on February 16, 2025.

Travelers seeking maximum savings on their San Francisco to St. Louis flight should consider departing on Monday evenings when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from San Francisco to St. Louis

Explore weekly flight availability from San Francisco to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated fevereiro 20, 2025.

The most flights from SFO to STL are scheduled on a Monday (4 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated fevereiro 20, 2025.
To help decide which airline to fly from San Francisco to St. Louis, see what other customers have to say about Southwest, Alaska Airlines and Delta. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Food

7.1

Crew

8.7

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Food

7.1

Crew

8.7

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Food

7.1

Crew

8.7

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

8.0
Very good

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Food

7.1

Crew

8.7

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Food

7.1

Crew

8.7

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Food

7.1

Crew

8.7

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airports do I use to fly from San Francisco to St. Louis?

    You will need to book a flight from San Francisco to Lambert-St Louis if you want to fly from San Francisco to St. Louis. At least 5 different airlines have flights from San Francisco (SFO) to Lambert-St Louis (STL) on a regular basis. There are 3 flights to St. Louis from the San Francisco airport per day. If you manage to book one that is nonstop, then you can expect the flight time from SFO to STL to be around 3h 45m.

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

  • What are the cheapest airlines flying from San Francisco to St. Louis round-trip?

    Currently priced at $262, 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. Search Cheapflights for deals from United Airlines and Delta - these airlines can fly you to your destination from $298 and $301, respectively. Users have found that Frontier is 32% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from San Francisco to St. Louis one-way?

    One-way options have recently been found by users for as low as $51 on Frontier. Other airlines that offer cheap prices include United Airlines from $149 and Alaska Airlines from $157 one-way.

  • What are the most reliable airlines from San Francisco to St. Louis?

    Before booking your flight to St. Louis from San Francisco, check out the most reliable airlines to get you to your destination on time: United Airlines (84%), Air New Zealand (77%), Asiana Airlines( 75%).

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

    On average you can expect to pay $652 for a flight from San Francisco to St. Louis. The cheapest flight overall is $154 while the most popular route, (San Francisco - Lambert-St Louis) is currently priced at $226.

  • Where are the most common layover locations when flying from San Francisco to St. Louis?

  • What are some popular things to do or see while on a layover in Salt Lake City?

    If you're on a layover in Salt Lake City and looking for things to do, consider visiting Temple Square, Abravanel Hall, or Salt Lake Temple. Those on a layover in Salt Lake City interested in visiting Temple Square, Abravanel Hall, or Salt Lake Temple can do so by traveling 4.7 mi, 4.7 mi, and 4.8 mi, respectively from Salt Lake City. Those on a layover in Salt Lake City in need of a rental car can book one at Salt Lake City for about $53.

  • Where are the least popular layover locations for San Francisco to St. Louis flights?

  • Can I find deals for flights from San Francisco to St. Louis that include hotel bookings?

    Yes. In addition to deals on San Francisco to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to St. Louis.

  • Can I find deals for business class flights from San Francisco to St. Louis?

    Yes. Cheapflights offers flight deals from San Francisco to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Francisco to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from San Francisco to St. Louis (average of $311). Flying from San Francisco to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Fenton
Fairview Heights
Maryland Heights
Collinsville
Wentzville
Eureka
St. Peters
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Farmington
Chesterfield

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Alternative routes for San Francisco to St. Louis

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

Top 5 airlines flying from San Francisco to St. Louis

Discover the top 5 airlines that operate flights from San Francisco to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated fevereiro 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$116Average$219FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$256Average$384FlexibilityNo cancel feeOn-time71%
DeltaCheapest$256Average$433FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$273Average$438FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$291Average$421FlexibilityNo cancel feeOn-time63%
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