HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Francisco Bay Area

$60+ 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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SFO
Jan 29 — Feb 51
Thu 1/29
Thu 2/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to San Francisco Bay Area with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 December 30, 2025.

This Expedia deal was found by Cheapflights users on 12/26. 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.
Mon 12/297:43 pmSTL - SFO
1 stop6h 41mFrontier
Fri 1/26:24 amSFO - STL
1 stop25h 38mFrontier
Deal found 12/26$447
This Kiwi.com deal was found by Cheapflights users on 12/28. 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 12/317:43 pmSTL - SFO
1 stop14h 40mFrontier
Sun 1/49:56 pmSFO - STL
1 stop20h 11mFrontier
Deal found 12/28$730
This American Airlines deal was found by Cheapflights users on 12/27. 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 12/308:00 amSTL - SFO
1 stop9h 58mAmerican Airlines
Thu 1/111:20 amSFO - STL
1 stop10h 31mAmerican Airlines
Deal found 12/27$789
This United Airlines deal was found by Cheapflights users on 12/28. 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 12/316:30 amSTL - SFO
2 stops15h 00mUnited Airlines
Thu 1/16:00 amSFO - STL
2 stops14h 22mUnited Airlines
Deal found 12/28$821
This Kiwi.com deal was found by Cheapflights users on 12/27. 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 12/2810:57 amSTL - SFO
2 stops36h 52mFrontier
Sun 1/49:56 pmSFO - STL
1 stop20h 11mFrontier
Deal found 12/27$845
This WAYA deal was found by Cheapflights users on 12/27. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:43 pmSTL - SFO
1 stop6h 41mMultiple Airlines
Fri 1/210:46 amSFO - STL
1 stop7h 01mMultiple Airlines
Deal found 12/27$860
This American Airlines deal was found by Cheapflights users on 12/28. 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.
Mon 12/298:00 amSTL - SFO
1 stop9h 58mAmerican Airlines
Sat 1/103:50 pmSFO - STL
1 stop6h 09mAmerican Airlines
Deal found 12/28$866
This WAYA deal was found by Cheapflights users on 12/27. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:43 pmSTL - SFO
1 stop6h 41mMultiple Airlines
Fri 1/210:46 amSFO - STL
1 stop7h 01mMultiple Airlines
Deal found 12/27$867
This United Airlines deal was found by Cheapflights users on 12/27. 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 12/275:45 pmSTL - SFO
2 stops15h 43mUnited Airlines
Sun 1/44:25 pmSFO - STL
Nonstop4h 05mUnited Airlines
Deal found 12/27$868
This American Airlines deal was found by Cheapflights users on 12/27. 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.
Wed 12/315:16 amSTL - STS
2 stops9h 13mAmerican Airlines
Fri 1/212:59 pmSTS - STL
1 stop8h 52mAmerican Airlines
Deal found 12/27$994
This American Airlines deal was found by Cheapflights users on 12/28. 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 12/308:00 amSTL - SJC
1 stop6h 26mAmerican Airlines
Sat 1/32:01 pmSJC - STL
1 stop6h 55mAmerican Airlines
Deal found 12/28$1,006
This Alaska Airlines deal was found by Cheapflights users on 12/27. 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 12/315:26 pmSTL - STS
1 stop22h 06mAlaska Airlines
Fri 1/22:24 pmSTS - STL
1 stop7h 35mAlaska Airlines
Deal found 12/27$1,024

Find 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 December 30, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$151
(Kiwi.com)

One-way from

$60
(Trip.com)

Popular in

March

Cheapest in

April

Average price

$403
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
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 December 30, 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

Thu 1/22

10:01 pm-8:40 am

1 stop12h 39m

San Jose

Mon 1/26

10:37 am-8:50 pm

1 stop8h 13m

$233

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Tue 2/17

7:00 am-5:38 pm

2 stops12h 38m

San Jose

Sat 2/21

7:15 am-9:38 pm

2 stops12h 23m

$274

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Thu 1/22

6:40 am-3:58 pm

2 stops11h 18m

San Francisco

Wed 1/28

10:30 am-11:25 pm

2 stops10h 55m

$274

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Tue 1/27

3:31 pm-11:30 pm

2 stops9h 59m

San Francisco

Tue 2/3

6:00 am-9:38 pm

2 stops13h 38m

$274

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Thu 2/26

6:10 am-3:51 pm

2 stops11h 41m

San Francisco

Mon 3/2

10:20 am-11:23 pm

2 stops11h 03m

$274

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Tue 2/17

2:22 pm-10:41 pm

2 stops10h 19m

San Francisco

Sat 2/21

10:25 am-9:38 pm

2 stops9h 13m

$274

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Sat 1/24

6:40 am-5:49 pm

2 stops13h 09m

San Francisco

Sat 1/31

10:30 am-11:25 pm

2 stops10h 55m

$274

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Thu 1/22

6:35 am-5:40 pm

2 stops13h 05m

San Jose

Mon 1/26

11:40 am-11:25 pm

2 stops9h 45m

$313

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Fri 2/20

2:22 pm-10:41 pm

2 stops10h 19m

San Francisco

Wed 2/25

10:20 am-11:23 pm

2 stops11h 03m

$313

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Thu 1/22

6:00 am-12:56 pm

1 stop8h 56m

San Jose

Wed 1/28

11:40 am-11:25 pm

2 stops9h 45m

$316

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/28

Showing 1-10 of 54 results
1
2
3
...
6

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 $124). 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 December 30, 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 morning could potentially save you up to 48% 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 August 31, 2025.

Travelers seeking maximum savings on their St. Louis to San Francisco Bay Area flight should consider departing on Wednesday afternoons 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 December 30, 2025.

The most flights from STL to zzXIH are scheduled on a Monday (5 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (3 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 December 30, 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
4,251 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

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
4,251 reviews
Southwest
8.0
Very good
4,251 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

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
8,014 reviews
Southwest
8.0
Very good
4,251 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

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
9,121 reviews
Southwest
8.0
Very good
4,251 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

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
11,072 reviews
Southwest
8.0
Very good
4,251 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

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
5.7
Fair
3,065 reviews
Southwest
8.0
Very good
4,251 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

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, 16 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 11h 37m. Airlines will cover a distance of 1720 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 $72. However, be on the lookout for offers from American Airlines and Delta, 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 (77%), United Airlines (74%), Asiana Airlines( 72%).

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

    Looking at all options, your cheapest flight can be booked for $210. While the most popular route (Lambert-St Louis - San Francisco) can be booked for $220 on average, our data indicates $742 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 $124). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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.
St. Louis to Las Vegas flights
Kansas City to Las Vegas flights
Kansas City to Los Angeles flights
St. Louis to Los Angeles flights
St. Louis to San Francisco flights
St. Louis to San Diego flights
Kansas City to San Diego flights
Kansas City to Santa Ana flights
Kansas City to San Francisco flights
Kansas City to Ontario flights
Kansas City to Burbank flights
St. Louis to Ontario flights
Springfield to Los Angeles flights
St. Louis to Santa Ana flights
Kansas City to San Jose flights
St. Louis to Burbank flights
Springfield to Las Vegas flights
Kansas City to Palm Springs flights
Columbia to Las Vegas flights
St. Louis to Reno flights
Kansas City to Sacramento flights
Springfield to San Diego flights
St. Louis to Palm Springs flights
Springfield to Ontario flights
St. Louis to Sacramento flights
Columbia to San Diego flights
St. Louis to Long Beach flights
St. Louis to San Jose flights
Kansas City to Reno flights
Kansas City to Oakland flights
Kansas City to Fresno flights
Springfield to Burbank flights
Springfield to Santa Ana flights
Springfield to Sacramento flights
St. Louis to Santa Barbara flights
Springfield to San Francisco flights
Springfield to San Jose flights
St. Louis to Redding flights
Kansas City to Long Beach flights
St. Louis to Fresno flights
St. Louis to Oakland flights
St. Louis to San Luis Obispo flights
Kansas City to Monterey flights
Kansas City to Santa Barbara flights
Joplin to Las Vegas flights
Springfield to Palm Springs flights
Kansas City to Medford flights
Springfield to Reno flights
St. Louis to Monterey flights
Columbia to San Francisco flights

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 December 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$130Average$231FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$180Average$443FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$256Average$423FlexibilityNo cancel feeOn-time63%
DeltaCheapest$256Average$365FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$265Average$401FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.