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St. Louis

$121+ 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 7/17. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — STL
May 10 — May 171
Sat 5/10
Sat 5/17
1 adult, Economy
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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 May 5, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$229
(FlightHub)

One-way from

$121
(Trip.com)

Popular in

June

Cheapest in

January

Average price

$397
Provider with most accurate pricing for San Francisco-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Lambert-St Louis flights.
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From San Francisco Bay Area to Lambert-St Louis
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One-way flight from San Francisco Bay Area to Lambert-St Louis
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Highest demand for flights based on searches. 6% potential increase in price ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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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 May 5, 2025.

This FlightHub deal was found by Cheapflights users on 5/4. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2912:13 pmSJC - STL
1 stop18h 56mFrontier
Wed 6/48:11 pmSTL - SJC
1 stop17h 07mFrontier
Deal found 5/4$229
This Delta deal was found by Cheapflights users on 5/5. 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.
Thu 6/261:40 pmSJC - STL
1 stop7h 47mDelta
Thu 7/36:00 amSTL - SJC
1 stop7h 07mDelta
Deal found 5/5$257
This American Airlines deal was found by Cheapflights users on 5/4. 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.
Tue 6/101:13 pmSJC - STL
1 stop7h 47mAmerican Airlines
Sat 6/143:08 pmSTL - SJC
2 stops9h 38mAmerican Airlines
Deal found 5/4$262
This United Airlines deal was found by Cheapflights users on 5/4. 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.
Sat 6/143:53 pmSJC - STL
1 stop6h 06mUnited Airlines
Wed 6/189:10 amSTL - SJC
1 stop6h 11mUnited Airlines
Deal found 5/4$281
This Mytrip deal was found by Cheapflights users on 5/5. 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 6/114:28 pmSJC - STL
3 stops24h 13mMultiple Airlines
Mon 6/1611:28 amSTL - SJC
2 stops24h 38mMultiple Airlines
Deal found 5/5$319
This Mytrip deal was found by Cheapflights users on 5/5. 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.
Thu 6/59:09 pmOAK - STL
2 stops34h 06mMultiple Airlines
Sun 6/812:15 pmSTL - OAK
3 stops33h 59mMultiple Airlines
Deal found 5/5$320
This Mytrip deal was found by Cheapflights users on 5/5. 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 6/116:00 amSJC - STL
2 stops33h 04mSpirit Airlines
Mon 6/1611:28 amSTL - SJC
2 stops24h 38mSpirit Airlines
Deal found 5/5$320
This United Airlines deal was found by Cheapflights users on 5/4. 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 5/2811:05 pmSFO - STL
Nonstop3h 58mUnited Airlines
Sun 6/17:10 pmSTL - SFO
Nonstop4h 16mUnited Airlines
Deal found 5/4$329
This Frontier deal was found by Cheapflights users on 5/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/265:45 amSFO - STL
1 stop5h 55mFrontier
Thu 6/52:27 pmSTL - SFO
1 stop8h 54mFrontier
Deal found 5/4$330
This Southwest deal was found by Cheapflights users on 5/5. 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.
Wed 6/116:50 amOAK - STL
1 stop6h 25mSouthwest
Sun 6/155:50 amSTL - OAK
1 stop6h 05mSouthwest
Deal found 5/5$332
This Alaska Airlines deal was found by Cheapflights users on 5/5. 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 6/1112:25 pmSJC - STL
1 stop9h 39mAlaska Airlines
Mon 6/167:32 pmSTL - SJC
1 stop15h 38mAlaska Airlines
Deal found 5/5$335
This Mytrip deal was found by Cheapflights users on 5/5. 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.
Thu 6/59:09 pmOAK - STL
2 stops34h 06mSpirit Airlines
Sun 6/810:10 amSTL - OAK
2 stops36h 04mSpirit Airlines
Deal found 5/5$336

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 May 5, 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 5/29

12:13 pm-9:09 am

1 stop18h 56m

Lambert-St Louis

Wed 6/4

8:11 pm-11:18 am

1 stop17h 07m

$229

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Thu 6/26

1:40 pm-11:27 pm

1 stop7h 47m

Lambert-St Louis

Tue 7/1

6:30 am-12:43 pm

1 stop8h 13m

$257

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Tue 6/10

1:13 pm-11:00 pm

1 stop7h 47m

Lambert-St Louis

Sat 6/14

3:08 pm-10:46 pm

2 stops9h 38m

$262

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Sat 6/14

3:53 pm-11:59 pm

1 stop6h 06m

Lambert-St Louis

Wed 6/18

9:10 am-1:21 pm

1 stop6h 11m

$281

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Wed 6/11

4:28 pm-6:41 pm

3 stops24h 13m

Lambert-St Louis

Mon 6/16

11:28 am-10:06 am

2 stops24h 38m

$319

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Wed 6/11

6:00 am-5:04 pm

2 stops33h 04m

Lambert-St Louis

Mon 6/16

11:28 am-10:06 am

2 stops24h 38m

$320

OaklandSt. Louis

OAK - STL

OAKSTL

Oakland

Thu 6/5

9:09 pm-9:15 am

2 stops34h 06m

Lambert-St Louis

Sun 6/8

12:15 pm-8:14 pm

3 stops33h 59m

$320

San FranciscoSt. Louis

SFO - STL

SFOSTL

San Francisco

Wed 5/28

11:05 pm-5:03 am

Nonstop3h 58m

Lambert-St Louis

Sun 6/1

7:10 pm-9:26 pm

Nonstop4h 16m

$329

San FranciscoSt. Louis

SFO - STL

SFOSTL

San Francisco

Mon 5/26

5:45 am-1:40 pm

1 stop5h 55m

Lambert-St Louis

Thu 6/5

2:27 pm-9:21 pm

1 stop8h 54m

$330

OaklandSt. Louis

OAK - STL

OAKSTL

Oakland

Wed 6/11

6:50 am-3:15 pm

1 stop6h 25m

Lambert-St Louis

Sun 6/15

5:50 am-9:55 am

1 stop6h 05m

$332

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/4

Showing 1-10 of 49 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 May 5, 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.

Weekly flight availability from San Francisco Bay Area to St. Louis

Explore weekly flight availability from San Francisco Bay Area 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 May 5, 2025.

The most flights from zzXIH to STL are scheduled on a Monday (7 on average). You will have fewer flight options on Tuesday, 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 May 5, 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.
Alaska Airlines
8.0
Very good
9,987 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,987 reviews
Alaska Airlines
8.0
Very good
9,987 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,292 reviews
Alaska Airlines
8.0
Very good
9,987 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,939 reviews
Alaska Airlines
8.0
Very good
9,987 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,422 reviews
Alaska Airlines
8.0
Very good
9,987 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,702 reviews
Alaska Airlines
8.0
Very good
9,987 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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?

    Flights from San Francisco Bay Area to Lambert-St Louis have been viewed 13 times in the past calendar month.

  • 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 Frontier, which is currently one of the cheapest options available, starting at $121. Spirit Airlines flights start at $124 while deals on Delta start at $129 one-way.

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

    Most travelers choose San Francisco - Lambert-St Louis, San Jose - Lambert-St Louis or Oakland - Lambert-St Louis when deciding on the best route 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 Air New Zealand (83%), Southwest (66%) and Asiana Airlines (50%).

  • 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 $490, our data indicates the cheapest price to be $139. The most popular route (San Francisco - Lambert-St Louis), is priced around $255.

  • 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
O'Fallon

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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.
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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 May 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$108Average$206FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$120Average$294FlexibilityNo cancel feeOn-time65%
DeltaCheapest$246Average$380FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$246Average$440FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$246Average$403FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$305Average$432FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$432Average$708FlexibilityNo cancel feeOn-time75%

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