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$111+ 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 6/29. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SFO
Jun 23 — Jun 301
Mon 6/23
Mon 6/30
1 adult, Economy
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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 June 18, 2025.

Round-trip from

$280
(Booking.com)

One-way from

$111
(FlightHub)

Popular in

June

Cheapest in

August

Average price

$427
From Lambert-St Louis to San Francisco Bay Area
Search Deals
One-way flight from Lambert-St Louis to San Francisco Bay Area
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Highest demand for flights based on searches. 9% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 18, 2025.

This Booking.com deal was found by Cheapflights users on 6/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/155:40 pmSTL - SFO
1 stop18h 45mFrontier
Tue 7/228:53 pmSFO - STL
1 stop24h 54mFrontier
Deal found 6/15$280
This Mytrip deal was found by Cheapflights users on 6/18. 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 9/48:44 amSTL - SJC
2 stops26h 40mSpirit Airlines
Sun 9/710:19 amSJC - STL
2 stops19h 30mSpirit Airlines
Deal found 6/18$293
This United Airlines deal was found by Cheapflights users on 6/15. 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 7/86:00 amSTL - SFO
Nonstop4h 16mUnited Airlines
Tue 7/1510:40 amSFO - STL
Nonstop4h 05mUnited Airlines
Deal found 6/15$299
This American Airlines deal was found by Cheapflights users on 6/18. 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.
Thu 8/145:15 amSTL - SFO
1 stop9h 45mAmerican Airlines
Tue 8/1910:16 amSFO - STL
1 stop10h 01mAmerican Airlines
Deal found 6/18$301
This Mytrip deal was found by Cheapflights users on 6/17. 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.
Mon 7/2110:47 amSTL - OAK
2 stops23h 41mSpirit Airlines
Wed 7/309:23 amOAK - STL
2 stops22h 29mSpirit Airlines
Deal found 6/17$305
This Alaska Airlines deal was found by Cheapflights users on 6/17. 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 8/67:32 pmSTL - SJC
1 stop15h 36mAlaska Airlines
Tue 8/196:11 pmSJC - STL
1 stop18h 28mAlaska Airlines
Deal found 6/17$318
This Delta deal was found by Cheapflights users on 6/16. 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 7/166:30 amSTL - SJC
1 stop8h 09mDelta
Wed 7/236:20 amSJC - STL
1 stop8h 22mDelta
Deal found 6/16$319
This Southwest deal was found by Cheapflights users on 6/15. 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.
Tue 7/159:20 amSTL - SFO
Nonstop4h 10mSouthwest
Tue 7/2210:15 amSFO - STL
Nonstop3h 40mSouthwest
Deal found 6/15$319
This American Airlines deal was found by Cheapflights users on 6/17. 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 8/65:15 amSTL - SJC
1 stop9h 04mAmerican Airlines
Tue 8/199:49 amSJC - STL
2 stops8h 33mAmerican Airlines
Deal found 6/17$324
This United Airlines deal was found by Cheapflights users on 6/17. 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.
Thu 9/45:30 pmSTL - SJC
1 stop7h 10mUnited Airlines
Mon 9/83:45 pmSJC - STL
1 stop6h 08mUnited Airlines
Deal found 6/17$327
This Hawaiian Airlines deal was found by Cheapflights users on 6/16. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/226:30 pmSTL - SFO
1 stop7h 29mHawaiian Airlines
Tue 10/72:44 pmSFO - STL
1 stop7h 15mHawaiian Airlines
Deal found 6/16$327
This Delta deal was found by Cheapflights users on 6/16. 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 8/147:11 pmSTL - SFO
1 stop6h 37mDelta
Mon 8/1812:40 amSFO - STL
1 stop7h 57mDelta
Deal found 6/16$328

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 June 18, 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

Tue 7/15

5:40 pm-10:25 am

1 stop18h 45m

San Francisco

Tue 7/22

8:53 pm-11:47 pm

1 stop24h 54m

$280

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Thu 9/4

8:44 am-9:24 am

2 stops26h 40m

San Jose

Sun 9/7

10:19 am-7:49 am

2 stops19h 30m

$293

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Tue 7/8

6:00 am-8:16 am

Nonstop4h 16m

San Francisco

Tue 7/15

10:40 am-4:45 pm

Nonstop4h 05m

$299

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Thu 8/14

5:15 am-1:00 pm

1 stop9h 45m

San Francisco

Tue 8/19

10:16 am-10:17 pm

1 stop10h 01m

$301

St. LouisOakland

STL - OAK

STLOAK

Lambert-St Louis

Mon 7/21

10:47 am-8:28 am

2 stops23h 41m

Oakland

Wed 7/30

9:23 am-9:52 am

2 stops22h 29m

$305

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Wed 8/6

7:32 pm-9:08 am

1 stop15h 36m

San Jose

Tue 8/19

6:11 pm-2:39 pm

1 stop18h 28m

$318

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Tue 7/15

9:20 am-11:30 am

Nonstop4h 10m

San Francisco

Tue 7/22

10:15 am-3:55 pm

Nonstop3h 40m

$319

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Wed 7/16

6:30 am-12:39 pm

1 stop8h 09m

San Jose

Wed 7/23

6:20 am-4:42 pm

1 stop8h 22m

$319

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Wed 8/6

5:15 am-12:19 pm

1 stop9h 04m

San Jose

Tue 8/19

9:49 am-8:22 pm

2 stops8h 33m

$324

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Thu 9/4

5:30 pm-10:40 pm

1 stop7h 10m

San Jose

Mon 9/8

3:45 pm-11:53 pm

1 stop6h 08m

$327

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/15

Showing 1-10 of 50 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 $362). 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 June 18, 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.

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 June 18, 2025.

The most flights from STL to zzXIH are scheduled on a Wednesday (7 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

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 June 18, 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Entertainment

7.1

Food

7.1

Boarding

8.1

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Entertainment

7.1

Food

7.1

Boarding

8.1

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
4,280 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Entertainment

7.1

Food

7.1

Boarding

8.1

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
7,964 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Entertainment

7.1

Food

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,507 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Entertainment

7.1

Food

7.1

Boarding

8.1

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
8,810 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Entertainment

7.1

Food

7.1

Boarding

8.1

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 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, 14 users have taken a look at flights from Lambert-St Louis to San Francisco Bay Area.

  • 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 $111. However, be on the lookout for offers from Sun Country Air and Spirit 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: United Airlines (81%), Air New Zealand (80%), Southwest( 76%).

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

    Looking at all options, your cheapest flight can be booked for $177. While the most popular route (Lambert-St Louis - San Francisco) can be booked for $299 on average our data indicates $1,274 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 $362). 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.

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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 June 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$116Average$172FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$236Average$437FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$347FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$242Average$411FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$256Average$420FlexibilityNo cancel feeOn-time63%

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