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$86+ 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SFO
Feb 28 — Mar 71
Fri 2/28
Fri 3/7
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 February 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$158
(Mytrip)

One-way from

$86
(CheapOair)

Popular in

June

Cheapest in

April

Average price

$363
Provider with most accurate pricing for Lambert-St Louis-San Francisco flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-San Francisco flights.
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From Lambert-St Louis to San Francisco Bay Area
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One-way flight from Lambert-St Louis to San Francisco Bay Area
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Highest demand for flights based on searches. 5% potential increase in price ($22 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 February 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 February 23, 2025.

This Mytrip deal was found by Cheapflights users on 2/22. 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 3/106:55 pmSTL - SJC
1 stop23h 39mFrontier
Wed 3/125:34 pmSJC - STL
1 stop22h 11mFrontier
Deal found 2/22$158
This CheapOair deal was found by Cheapflights users on 2/22. 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.
Sat 5/175:47 pmSTL - SFO
1 stop21h 11mFrontier
Fri 5/238:56 pmSFO - STL
1 stop10h 16mFrontier
Deal found 2/22$241
This Alaska Airlines deal was found by Cheapflights users on 2/23. 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 3/266:44 amSTL - SJC
1 stop9h 21mAlaska Airlines
Tue 4/13:00 pmSJC - STL
1 stop6h 59mAlaska Airlines
Deal found 2/23$256
This Delta deal was found by Cheapflights users on 2/22. 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 7/96:59 pmSTL - SJC
1 stop6h 49mDelta
Fri 8/2910:20 pmSJC - STL
1 stop10h 18mDelta
Deal found 2/22$257
This American Airlines deal was found by Cheapflights users on 2/22. 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 4/13:53 pmSTL - SJC
2 stops8h 56mAmerican Airlines
Tue 4/812:15 pmSJC - STL
1 stop8h 13mAmerican Airlines
Deal found 2/22$262
This Mytrip deal was found by Cheapflights users on 2/22. 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.
Tue 4/16:47 pmSTL - SJC
2 stops20h 47mMultiple Airlines
Tue 4/88:50 pmSJC - STL
3 stops45h 20mMultiple Airlines
Deal found 2/22$269
This Expedia deal was found by Cheapflights users on 2/21. 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.
Wed 3/127:03 pmSTL - SFO
1 stop7h 40mMultiple Airlines
Wed 3/199:20 amSFO - STL
1 stop12h 39mMultiple Airlines
Deal found 2/21$277
This United Airlines deal was found by Cheapflights users on 2/23. 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 4/15:54 pmSTL - SFO
Nonstop4h 28mUnited Airlines
Tue 4/810:45 amSFO - STL
Nonstop4h 07mUnited Airlines
Deal found 2/23$297
This American Airlines deal was found by Cheapflights users on 2/23. 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 4/15:55 amSTL - SFO
1 stop10h 51mAmerican Airlines
Mon 4/712:47 amSFO - STL
1 stop6h 14mAmerican Airlines
Deal found 2/23$310
This Alaska Airlines deal was found by Cheapflights users on 2/23. 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 4/16:44 amSTL - SFO
1 stop8h 49mAlaska Airlines
Tue 4/87:35 amSFO - STL
2 stops14h 24mAlaska Airlines
Deal found 2/23$315
This Delta deal was found by Cheapflights users on 2/22. 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 4/236:25 pmSTL - OAK
1 stop7h 18mDelta
Wed 4/306:00 amOAK - STL
1 stop5h 28mDelta
Deal found 2/22$317
This Delta deal was found by Cheapflights users on 2/23. 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.
Mon 4/147:15 pmSTL - SFO
1 stop6h 53mDelta
Wed 4/165:40 amSFO - STL
1 stop9h 07mDelta
Deal found 2/23$317

Find flights from St. Louis to San Francisco Bay Area within your budget

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 February 23, 2025.

Fly from

St. Louis

Fly to

San Francisco Bay Area

Route

Depart

Return

Price

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Mon 3/10

6:55 pm-4:34 pm

1 stop23h 39m

San Jose

Wed 3/12

5:34 pm-5:45 pm

1 stop22h 11m

$158

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Sat 5/17

5:47 pm-12:58 pm

1 stop21h 11m

San Francisco

Fri 5/23

8:56 pm-9:12 am

1 stop10h 16m

$241

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Wed 3/26

6:44 am-2:05 pm

1 stop9h 21m

San Jose

Tue 4/1

3:00 pm-11:59 pm

1 stop6h 59m

$256

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Wed 7/9

6:59 pm-11:48 pm

1 stop6h 49m

San Jose

Fri 8/29

10:20 pm-10:38 am

1 stop10h 18m

$257

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Tue 4/1

3:53 pm-10:49 pm

2 stops8h 56m

San Jose

Sat 4/12

6:10 am-4:36 pm

1 stop8h 26m

$262

St. LouisSan Jose

STL - SJC

STLSJC

Lambert-St Louis

Tue 4/1

6:47 pm-1:34 pm

2 stops20h 47m

San Jose

Tue 4/8

8:50 pm-8:10 pm

3 stops45h 20m

$269

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Wed 3/12

7:03 pm-12:43 am

1 stop7h 40m

San Francisco

Wed 3/19

9:20 am-11:59 pm

1 stop12h 39m

$277

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Tue 4/1

5:54 pm-8:22 pm

Nonstop4h 28m

San Francisco

Tue 4/8

10:45 am-4:52 pm

Nonstop4h 07m

$297

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Tue 4/1

5:55 am-2:46 pm

1 stop10h 51m

San Francisco

Mon 4/7

12:47 am-9:01 am

1 stop6h 14m

$310

St. LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Tue 4/1

6:44 am-1:33 pm

1 stop8h 49m

San Francisco

Tue 4/8

7:35 am-11:59 pm

2 stops14h 24m

$315

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/23

Showing 1-10 of 44 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.

Travel insights for flights from St. Louis to San Francisco Bay Area

Get recent, data-driven insights about flights from St. Louis to San Francisco Bay Area including ideal travel times, pricing trends, and more.

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 $403). 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 February 23, 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 February 23, 2025.

The most flights from STL to zzXIH are scheduled on a Thursday (5 on average). You will have fewer flight options on Sunday, 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 February 23, 2025.
Read reviews from past customers who have flown Southwest, Alaska Airlines 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.
Southwest
8.1
Very good
4,385 reviews

Comfort

8.1

Overall

8.1

Food

7.1

Entertainment

7.6

Crew

8.7

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Southwest
8.1
Very good
4,385 reviews
Southwest
8.1
Very good
4,385 reviews

Comfort

8.1

Overall

8.1

Food

7.1

Entertainment

7.6

Crew

8.7

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,385 reviews

Comfort

8.1

Overall

8.1

Food

7.1

Entertainment

7.6

Crew

8.7

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Delta
8.0
Very good
8,187 reviews
Southwest
8.1
Very good
4,385 reviews

Comfort

8.1

Overall

8.1

Food

7.1

Entertainment

7.6

Crew

8.7

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

United Airlines
7.4
Good
8,746 reviews
Southwest
8.1
Very good
4,385 reviews

Comfort

8.1

Overall

8.1

Food

7.1

Entertainment

7.6

Crew

8.7

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,385 reviews

Comfort

8.1

Overall

8.1

Food

7.1

Entertainment

7.6

Crew

8.7

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

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, 8 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 $86. However, be on the lookout for offers from Delta and Sun Country Air, 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: Asiana Airlines (84%), Air New Zealand (84%), United Airlines( 82%).

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

    Looking at all options, your cheapest flight can be booked for $113. While the most popular route (Lambert-St Louis - San Francisco) can be booked for $199 on average our data indicates $680 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 $403). 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 6 airlines flying from St. Louis to San Francisco Bay Area

Discover the top 6 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 February 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$78Average$189FlexibilityNo cancel feeOn-time65%
FrontierCheapest$118Average$180FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$228Average$403FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$235Average$448FlexibilityNo cancel feeOn-time71%
DeltaCheapest$235Average$353FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$261Average$427FlexibilityNo cancel feeOn-time63%
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