San Francisco Bay Area

$110+ 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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SFO
Apr 9 — Apr 161
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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 April 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$238
(Frontier)

One-way from

$110
(Trip.com)

Popular in

June

Cheapest in

April

Average price

$310
Provider with most accurate pricing for Lambert-St Louis-San Francisco flight deals.
Provider most trusted by Cheapflights users for Lambert-St Louis-San Francisco flights.
From Lambert-St Louis to San Francisco Bay Area
One-way flight from Lambert-St Louis to San Francisco Bay Area
Highest demand for flights based on searches. 6% potential increase in price ($26 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Average for round-trip flights in April 2025

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 April 4, 2025.

This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/249:55 pmSTL - SFO
1 stop11h 50mFrontier
Mon 4/2810:41 amSFO - STL
1 stop8h 24mFrontier
Deal found 4/2$238
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.
Sun 5/49:55 pmSTL - SJC
1 stop22h 46mFrontier
Thu 5/812:04 pmSJC - STL
1 stop19h 05mFrontier
Deal found 4/3$240
This Southwest deal was found by Cheapflights users on 4/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/3012:50 pmSTL - SJC
1 stop6h 05mSouthwest
Mon 6/26:35 amSJC - STL
1 stop6h 00mSouthwest
Deal found 4/4$252
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/116:00 amSTL - SJC
1 stop7h 26mDelta
Wed 6/1810:25 pmSJC - STL
1 stop7h 39mDelta
Deal found 4/3$257
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/35:19 amSTL - SJC
2 stops8h 39mAmerican Airlines
Wed 6/412:48 pmSJC - STL
2 stops9h 03mAmerican Airlines
Deal found 4/3$267
This United Airlines deal was found by Cheapflights users on 4/4. 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.
Tue 7/13:20 pmSTL - SJC
1 stop9h 15mUnited Airlines
Sat 7/56:20 amSJC - STL
1 stop7h 27mUnited Airlines
Deal found 4/4$286
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/46:10 pmSTL - OAK
2 stops14h 39mSpirit Airlines
Thu 5/89:09 pmOAK - STL
2 stops34h 06mSpirit Airlines
Deal found 4/3$291
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/226:30 amSTL - SJC
1 stop7h 31mAlaska Airlines
Sat 4/2612:55 pmSJC - STL
1 stop9h 04mAlaska Airlines
Deal found 4/3$306
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/16:10 pmSTL - SJC
2 stops26h 47mSpirit Airlines
Thu 5/83:23 pmSJC - STL
3 stops39h 52mSpirit Airlines
Deal found 4/3$308
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.
Wed 5/77:19 pmSTL - OAK
1 stop6h 30mDelta
Sun 5/114:55 pmOAK - STL
1 stop6h 04mDelta
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.
Wed 4/231:40 pmSTL - SFO
Nonstop4h 20mSouthwest
Tue 4/2910:40 amSFO - STL
Nonstop3h 45mSouthwest
Deal found 4/2$319
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/75:54 pmSTL - SFO
Nonstop4h 28mUnited Airlines
Sat 5/105:00 amSFO - STL
1 stop5h 45mUnited Airlines
Deal found 4/2$329

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 April 4, 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 Francisco

STL - SFO

STLSFO

Lambert-St Louis

Thu 4/24

9:55 pm-7:45 am

1 stop11h 50m

San Francisco

Mon 4/28

10:41 am-9:05 pm

1 stop8h 24m

$238

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Sun 5/4

9:55 pm-6:41 pm

1 stop22h 46m

San Jose

Sun 5/11

12:20 pm-9:09 am

1 stop18h 49m

$240

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Fri 5/30

12:50 pm-4:55 pm

1 stop6h 05m

San Jose

Wed 6/4

7:30 am-2:55 pm

1 stop5h 25m

$252

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Wed 6/11

6:00 am-11:26 am

1 stop7h 26m

San Jose

Wed 6/18

10:25 pm-8:04 am

1 stop7h 39m

$257

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Tue 6/3

5:19 am-11:58 am

2 stops8h 39m

San Jose

Wed 6/4

12:48 pm-11:51 pm

2 stops9h 03m

$267

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Tue 7/1

3:20 pm-10:35 pm

1 stop9h 15m

San Jose

Sat 7/5

6:20 am-3:47 pm

1 stop7h 27m

$286

St. LouisOakland

STL - OAK

STLOAK

Lambert-St Louis

Sun 5/4

6:10 pm-6:49 am

2 stops14h 39m

Oakland

Thu 5/8

9:09 pm-9:15 am

2 stops34h 06m

$291

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Tue 4/22

6:30 am-12:01 pm

1 stop7h 31m

San Jose

Sat 4/26

12:55 pm-11:59 pm

1 stop9h 04m

$306

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Thu 5/1

6:10 pm-6:57 pm

2 stops26h 47m

San Jose

Thu 5/8

3:23 pm-9:15 am

3 stops39h 52m

$308

St. LouisOakland

STL - OAK

STLOAK

Lambert-St Louis

Wed 5/7

7:19 pm-11:49 pm

1 stop6h 30m

Oakland

Sun 5/11

4:55 pm-12:59 am

1 stop6h 04m

$315

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/3

Showing 1-10 of 47 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, January is the cheapest month in which you can book a flight from St. Louis to San Francisco Bay Area (average of $276). Flying from St. Louis to San Francisco Bay Area in June is currently the most expensive (average of $393). 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 April 4, 2025.

When flying from St. Louis to San Francisco Bay Area, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in San Francisco Bay Area by month

Plan your trip to San Francisco Bay Area by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco Bay Area ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco Bay Area when rainfall is around 0.0 in.

Temperature in San Francisco Bay Area by month

Plan your trip to San Francisco Bay Area by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco Bay Area, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 April 4, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from St. Louis to San Francisco Bay Area. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Boarding

8.2

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Overall

8.0

Boarding

8.2

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Overall

8.0

Boarding

8.2

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
8.0
Very good

Overall

8.0

Boarding

8.2

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Overall

8.0

Boarding

8.2

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Overall

8.0

Boarding

8.2

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

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?

  • 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 $110. However, be on the lookout for offers from Southwest 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?

  • 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: Asiana Airlines (83%), Southwest (74%), United Airlines( 55%).

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

    Looking at all options, your cheapest flight can be booked for $106. While the most popular route (Lambert-St Louis - San Francisco) can be booked for $240 on average our data indicates $1,267 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, January is the cheapest month in which you can book a flight from St. Louis to San Francisco Bay Area (average of $276). Flying from St. Louis to San Francisco Bay Area in June is currently the most expensive (average of $393). 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.

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

Discover the top 7 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 April 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$78Average$189FlexibilityNo cancel feeOn-time65%
FrontierCheapest$118Average$177FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$235Average$439FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$348FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$238Average$412FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$261Average$414FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$295Average$428FlexibilityNo cancel feeOn-time75%

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