St. Louis

$124+ Cheap flights from San Francisco Bay Area to St. Louis (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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — STL
Apr 8 — Apr 151
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Cheap flight deals from San Francisco Bay Area to St. Louis

Keep the following information in mind while searching for San Francisco Bay Area to St. Louis flight deals. Data was last updated April 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$240
(CheapOair)

One-way from

$124
(Southwest)

Popular in

June

Cheapest in

January

Average price

$364
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 Bay Area to Lambert-St Louis
One-way flight from San Francisco Bay Area to Lambert-St Louis
Highest demand for flights based on searches. 6% potential increase in price ($28 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 April 2025

Find flight deals from San Francisco Bay Area to St. Louis

Cheapest flights from San Francisco Bay Area to St. Louis
Explore the most affordable flight options available from San Francisco Bay Area to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 3, 2025.

This CheapOair deal was found by Cheapflights users on 4/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/112:04 pmSJC - STL
1 stop19h 05mFrontier
Sat 5/38:15 pmSTL - SJC
1 stop17h 05mFrontier
Deal found 4/1$240
This Alaska Airlines deal was found by Cheapflights users on 4/1. 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.
Wed 10/2910:05 amSJC - STL
1 stop11h 51mAlaska Airlines
Tue 11/47:00 amSTL - SJC
1 stop9h 10mAlaska Airlines
Deal found 4/1$256
This United Airlines deal was found by Cheapflights users on 4/1. 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.
Fri 5/21:11 pmSJC - STL
1 stop6h 52mUnited Airlines
Wed 5/75:29 pmSTL - SJC
1 stop7h 25mUnited Airlines
Deal found 4/1$257
This American Airlines deal was found by Cheapflights users on 4/1. 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.
Sat 9/1312:55 pmSJC - STL
2 stops8h 54mAmerican Airlines
Wed 9/175:35 amSTL - SJC
1 stop6h 17mAmerican Airlines
Deal found 4/1$262
This Delta deal was found by Cheapflights users on 3/31. 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.
Tue 6/2412:36 pmSJC - STL
1 stop9h 06mDelta
Mon 6/306:00 amSTL - SJC
1 stop7h 26mDelta
Deal found 3/31$277
This CheapOair deal was found by Cheapflights users on 4/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/910:47 amSFO - STL
1 stop23h 29mFrontier
Sun 4/131:06 pmSTL - SFO
1 stop20h 39mFrontier
Deal found 4/3$290
This Delta deal was found by Cheapflights users on 4/2. 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.
Sat 5/2412:39 pmOAK - STL
1 stop6h 53mDelta
Wed 5/287:19 pmSTL - OAK
1 stop6h 30mDelta
Deal found 4/2$315
This Southwest deal was found by Cheapflights users on 4/2. 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.
Sat 4/267:20 amSFO - STL
Nonstop3h 45mSouthwest
Sat 5/32:40 pmSTL - SFO
Nonstop4h 20mSouthwest
Deal found 4/2$319
This United Airlines deal was found by Cheapflights users on 4/1. 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.
Wed 4/3010:45 amSFO - STL
Nonstop4h 07mUnited Airlines
Wed 5/71:41 pmSTL - SFO
1 stop6h 01mUnited Airlines
Deal found 4/1$325
This Expedia deal was found by Cheapflights users on 4/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/278:00 amSFO - STL
2 stops14h 04mMultiple Airlines
Fri 5/307:24 pmSTL - SFO
1 stop6h 45mMultiple Airlines
Deal found 4/2$326
This Mytrip deal was found by Cheapflights users on 4/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/236:29 pmOAK - STL
3 stops20h 46mMultiple Airlines
Sat 4/2612:15 pmSTL - OAK
3 stops44h 34mMultiple Airlines
Deal found 4/2$329
This Alaska Airlines deal was found by Cheapflights users on 4/1. 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.
Wed 4/309:10 amSFO - STL
1 stop12h 49mAlaska Airlines
Wed 5/76:30 amSTL - SFO
2 stops12h 11mAlaska Airlines
Deal found 4/1$341

Cheapflights Fare Finder

Customize your flight search to find flights from San Francisco Bay Area 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 April 3, 2025.
Use the filters below to find and compare flights from San Francisco Bay Area to St. Louis that are best for you.

Fly from

San Francisco Bay Area

Fly to

St. Louis

Route

Depart

Return

Price

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Thu 5/1

7:41 pm-9:05 pm

1 stop23h 24m

Lambert-St Louis

Sun 5/4

9:55 pm-6:41 pm

1 stop22h 46m

$240

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Fri 5/2

1:11 pm-10:03 pm

1 stop6h 52m

Lambert-St Louis

Wed 5/7

5:29 pm-10:54 pm

1 stop7h 25m

$257

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Tue 6/24

4:56 pm-12:36 am

1 stop5h 40m

Lambert-St Louis

Sun 6/29

6:30 am-12:36 pm

1 stop8h 06m

$277

San FranciscoSt. Louis

SFO - STL

SFOSTL

San Francisco

Tue 5/27

6:00 am-1:55 pm

1 stop5h 55m

Lambert-St Louis

Fri 5/30

7:24 pm-12:09 am

1 stop6h 45m

$294

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Thu 4/24

6:00 am-1:42 pm

1 stop5h 42m

Lambert-St Louis

Tue 4/29

3:44 pm-10:47 pm

2 stops9h 03m

$312

OaklandSt. Louis

OAK - STL

OAKSTL

Oakland

Sat 5/24

12:39 pm-9:32 pm

1 stop6h 53m

Lambert-St Louis

Wed 5/28

7:19 pm-11:49 pm

1 stop6h 30m

$315

San FranciscoSt. Louis

SFO - STL

SFOSTL

San Francisco

Sat 4/26

7:20 am-1:05 pm

Nonstop3h 45m

Lambert-St Louis

Sat 5/3

2:40 pm-5:00 pm

Nonstop4h 20m

$319

San FranciscoSt. Louis

SFO - STL

SFOSTL

San Francisco

Wed 4/30

10:45 am-4:52 pm

Nonstop4h 07m

Lambert-St Louis

Wed 5/7

1:41 pm-5:42 pm

1 stop6h 01m

$325

San FranciscoSt. Louis

SFO - STL

SFOSTL

San Francisco

Tue 5/27

8:00 am-12:04 am

2 stops14h 04m

Lambert-St Louis

Fri 5/30

7:24 pm-12:09 am

1 stop6h 45m

$326

OaklandSt. Louis

OAK - STL

OAKSTL

Oakland

Wed 4/23

6:29 pm-5:15 pm

3 stops20h 46m

Lambert-St Louis

Sat 4/26

12:15 pm-6:49 am

3 stops44h 34m

$329

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 42 results
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Best time to book a flight from San Francisco Bay Area to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from San Francisco Bay Area 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.

Cheapflights Insights

Everything you need to know about your flight from San Francisco Bay Area to St. Louis

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

Currently, August is the cheapest month in which you can book a flight from San Francisco Bay Area to St. Louis (average of $311). Flying from San Francisco Bay Area 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 XIH to STL?

Find hourly flight availability from San Francisco Bay Area 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 April 3, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Francisco Bay Area to St. Louis as you normally would.

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 April 3, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from San Francisco Bay Area to St. Louis to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.2

Entertainment

7.1

Food

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Boarding

8.2

Entertainment

7.1

Food

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Boarding

8.2

Entertainment

7.1

Food

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
8.0
Very good

Boarding

8.2

Entertainment

7.1

Food

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Boarding

8.2

Entertainment

7.1

Food

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Boarding

8.2

Entertainment

7.1

Food

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from San Francisco Bay Area 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 airport do you fly into for flights to St. Louis from San Francisco Bay Area?

    Lambert-St Louis (STL) is the airport you will fly into if you book a flight from San Francisco Bay Area to St. Louis. It is only a 12.7 mi journey from Lambert-St Louis (STL) to St. Louis’s city center.

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

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

    To fly one-way, consider booking your trip with Southwest, which is currently one of the cheapest options available, starting at $124. Frontier flights start at $125 while deals on Alaska Airlines start at $128 one-way.

  • What are the most popular routes from San Francisco Bay Area to St. Louis?

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

    The top 3 most reliable airlines when flying from San Francisco Bay Area to St. Louis are United Airlines (78%), Air New Zealand (78%) and Asiana Airlines (78%).

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

    Looking for the cheapest flight from San Francisco Bay Area to St. Louis? While on average our users pay $614, our data indicates the cheapest price to be $138. The most popular route (San Francisco - Lambert-St Louis), is priced around $240.

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

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

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

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

    Yes. Cheapflights offers flight deals from San Francisco Bay Area 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 Bay Area to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from San Francisco Bay Area to St. Louis (average of $311). Flying from San Francisco Bay Area 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 Bay Area?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Francisco Bay Area to St. Louis

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

Top 7 airlines flying from San Francisco Bay Area to St. Louis

Discover the top 7 airlines that operate flights from San Francisco Bay Area 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 April 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$109Average$209FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$120Average$212FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$235Average$441FlexibilityNo cancel feeOn-time71%
DeltaCheapest$237Average$382FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$242Average$402FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$302Average$444FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$432Average$659FlexibilityNo cancel feeOn-time75%

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