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$62+ Cheap flights from St. Louis (STL) to San Francisco Bay Area

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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SFO
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
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Find flight deals from St. Louis to San Francisco Bay Area

Cheapest flights from St. Louis to San Francisco Bay Area
Explore the most affordable flight options available from St. Louis to San Francisco Bay Area. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/111:16 pmSTL - SFO
1 stop10h 47mFrontier
Mon 12/1511:33 pmSFO - STL
2 stops32h 41mFrontier
Deal found 11/12$195
This CheapOair deal was found by Cheapflights users on 11/12. 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 12/111:16 pmSTL - SFO
1 stop8h 47mFrontier
Sat 1/172:24 pmSFO - STL
1 stop28h 50mFrontier
Deal found 11/12$196
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/812:07 pmSTL - SFO
2 stops14h 17mFrontier
Wed 12/106:00 amSFO - STL
1 stop28h 12mFrontier
Deal found 11/11$197
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/43:30 pmSTL - SFO
2 stops18h 23mFrontier
Tue 12/96:30 amSFO - STL
1 stop25h 44mFrontier
Deal found 11/12$198
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/23:30 pmSTL - SFO
2 stops27h 21mFrontier
Tue 12/96:30 amSFO - STL
1 stop25h 44mFrontier
Deal found 11/12$201
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:43 pmSTL - SFO
1 stop14h 10mFrontier
Sat 12/68:43 amSFO - STL
1 stop25h 29mFrontier
Deal found 11/12$202
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:43 pmSTL - SFO
1 stop14h 10mFrontier
Sun 12/76:30 amSFO - STL
2 stops25h 22mFrontier
Deal found 11/12$203
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/510:44 pmSTL - SFO
1 stop11h 04mFrontier
Wed 12/106:30 amSFO - STL
2 stops26h 37mFrontier
Deal found 11/12$206
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/510:44 pmSTL - SFO
1 stop11h 04mFrontier
Mon 12/88:48 amSFO - STL
2 stops35h 45mFrontier
Deal found 11/12$207
This Flightnetwork deal was found by Cheapflights users on 11/10. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/107:43 pmSTL - SFO
1 stop14h 10mFrontier
Sat 1/1711:20 pmSFO - STL
1 stop8h 26mFrontier
Deal found 11/10$209
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/227:43 pmSTL - SFO
2 stops18h 51mFrontier
Sun 12/286:24 amSFO - STL
1 stop25h 38mFrontier
Deal found 11/12$211
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/239:54 pmSTL - SJC
1 stop20h 01mFrontier
Sun 11/304:20 pmSJC - STL
1 stop26h 49mFrontier
Deal found 11/11$246

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

Keep the following information in mind while searching for St. Louis to San Francisco Bay Area flight deals. Data was last updated November 13, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$195
(Kiwi.com)

One-way from

$62
(Trip.com)

Popular in

July

Cheapest in

January

Average price

$368
Provider with most accurate pricing for Lambert-St Louis-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-San Francisco flights.
Search Deals
From Lambert-St Louis to San Francisco Bay Area
Search Deals
One-way flight from Lambert-St Louis to San Francisco Bay Area
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($33 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to San Francisco Bay Area 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 November 13, 2025.
Use the filters below to find and compare flights from St. Louis to San Francisco Bay Area that are best for you.

Fly from

St. Louis

Fly to

San Francisco Bay Area

Route

Depart

Return

Price

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Sun 11/23

9:54 pm-3:55 pm

1 stop20h 01m

San Jose

Sun 11/30

4:20 pm-10:02 am

2 stops15h 42m

$268

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Wed 1/7

6:35 am-5:40 pm

2 stops13h 05m

San Jose

Sat 1/17

7:15 am-9:35 pm

2 stops12h 20m

$274

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Thu 12/11

6:00 am-3:54 pm

2 stops11h 54m

San Jose

Sat 1/17

7:15 am-9:35 pm

2 stops12h 20m

$274

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Thu 1/29

6:10 am-1:43 pm

2 stops9h 33m

San Francisco

Sun 2/1

10:30 am-11:25 pm

2 stops10h 55m

$274

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Tue 12/9

6:00 am-3:57 pm

2 stops11h 57m

San Francisco

Tue 12/16

5:45 am-7:10 pm

2 stops11h 25m

$274

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Wed 12/10

6:00 am-3:57 pm

2 stops11h 57m

San Francisco

Sat 1/17

10:35 am-9:35 pm

2 stops9h 00m

$274

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Wed 12/24

5:19 pm-6:48 pm

1 stop27h 29m

San Jose

Thu 1/1

7:43 pm-10:02 am

2 stops36h 19m

$291

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Wed 1/7

6:00 am-12:56 pm

1 stop8h 56m

San Jose

Sat 1/10

11:40 am-11:25 pm

2 stops9h 45m

$296

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Mon 12/8

5:12 pm-10:55 pm

1 stop7h 43m

San Jose

Wed 12/10

11:40 am-1:01 am

2 stops11h 21m

$316

St. LouisOakland

STL - OAK

STLOAK

Lambert-St Louis

Wed 1/14

2:50 pm-9:46 am

2 stops20h 56m

Oakland

Mon 1/19

8:10 am-1:54 pm

1 stop27h 44m

$328

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/13

Showing 1-10 of 58 results
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Best time to book a flight from St. Louis to San Francisco Bay Area

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

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

Currently, August is the cheapest month in which you can book a flight from St. Louis to San Francisco Bay Area (average of $123). Flying from St. Louis to San Francisco Bay Area in May is currently the most expensive (average of $256). 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 STL to XIH?

Find hourly flight availability from St. Louis to San Francisco Bay Area. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 13, 2025.

One of the essential ways to save on airfare from St. Louis to San Francisco Bay Area is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 29% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from St. Louis to San Francisco Bay Area. Price data was last updated on November 18, 2024.

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

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

Explore weekly flight availability from St. Louis to San Francisco Bay Area. 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 November 13, 2025.

The most flights from STL to zzXIH are scheduled on a Monday (5 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing San Francisco Bay Area

Get insights into the airlines that provide service to San Francisco Bay Area. 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 San Francisco Bay Area. Reviews last updated November 13, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from St. Louis to San Francisco Bay Area have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
7.9
Good
8,007 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
9,017 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
11,051 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,109 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to San Francisco Bay Area. 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 from for flights from St. Louis to San Francisco Bay Area?

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

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

    Within the past month, 17 users have taken a look at flights from Lambert-St Louis to San Francisco Bay Area.

  • How long is the flight from St. Louis to San Francisco Bay Area?

    Departing from St. Louis to San Francisco Bay Area will take you 13h 05m. Airlines will cover a distance of 1710 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $65. However, be on the lookout for offers from Delta and Alaska Airlines, as they are both options that can get you from St. Louis to San Francisco Bay Area for a low price.

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

    Most travelers choose Lambert-St Louis - San Francisco, Lambert-St Louis - San Jose or Lambert-St Louis - Oakland when deciding on the best route from St. Louis to San Francisco Bay Area.

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

    Before booking your flight to San Francisco Bay Area from St. Louis, check out the most reliable airlines to get you to your destination on time: Air New Zealand (80%), Asiana Airlines (79%), United Airlines( 70%).

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

    Looking at all options, your cheapest flight can be booked for $156. While the most popular route (Lambert-St Louis - San Francisco) can be booked for $192 on average, our data indicates $533 when flying from St. Louis to San Francisco Bay Area.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from St. Louis to San Francisco Bay Area (average of $123). Flying from St. Louis to San Francisco Bay Area in May is currently the most expensive (average of $256). 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

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Alternative routes for St. Louis to San Francisco Bay Area

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from St. Louis to San Francisco Bay Area

Discover the top 5 airlines that operate flights from St. Louis to San Francisco Bay Area. 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 November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$122Average$220FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$182Average$437FlexibilityNo cancel feeOn-time71%
DeltaCheapest$256Average$359FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$256Average$420FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$258Average$390FlexibilityNo cancel feeOn-time69%

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