Cheap flights from St. Louis to San Francisco (STL - SFO) from $62

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 4/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — SFO
Mar 23 — Mar 301

The best prices from Lambert-St Louis to San Francisco are usually found in October or September, booked 13 days in advance, depart on a Tuesday or Saturday and return on a Tuesday

Cheap flight deals from St. Louis to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 19, 2024.

Popular in

June

Cheapest in

October

Round-trip from

$268

One-way from

$171
High demand for flights, 18% potential price rise
Best time to find cheap flights, 13% potential price drop
From Lambert-St Louis to San Francisco
One-way flight from Lambert-St Louis to San Francisco

What is the cheapest day to fly round-trip from St. Louis to San Francisco?

Users have found that flying from St. Louis to San Francisco on a Saturday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from St. Louis to San Francisco?

To save up to 7% on this flight, we recommend booking at least 14 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from St. Louis to San Francisco from $242 1-2 weeks out and tickets from $366 for flights departing within the next 72 hours.

What is the cheapest month to fly from St. Louis to San Francisco?

October can be a great time to fly to San Francisco from St. Louis with a flight ticket averaging about $414. Cheapflights users have found deals in the month of October for as cheap as $139. The most expensive prices can be found in the month of June.

When is the cheapest time to fly from St. Louis to San Francisco (STL - SFO)?

It’s typically best to fly out from St. Louis to San Francisco in the evening. Doing so could potentially save you 51% on the flight price compared to flying at noon, which is usually more expensive.

Cheap Frontier flights from St. Louis to San Francisco

Explore cheap flight options specifically provided by Frontier for the route between St. Louis and San Francisco. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
Check out some of the cheapest Frontier flights we've come across from St. Louis to San Francisco. It's recommended that users confirm their flight details before booking.
Tue 4/1610:59 pmSTL - SFO
1 stop10h 44mFrontier
Tue 4/239:25 pmSFO - STL
1 stop10h 53mFrontier
Deal found 3/17$121
Tue 4/1610:59 pmSTL - SFO
1 stop12h 45mFrontier
Tue 4/234:19 pmSFO - STL
1 stop15h 59mFrontier
Deal found 3/17$122
Tue 4/1610:59 pmSTL - SFO
1 stop10h 44mFrontier
Mon 4/2212:58 amSFO - STL
1 stop12h 52mFrontier
Deal found 3/17$123
Tue 4/167:51 pmSTL - SFO
1 stop13h 52mFrontier
Mon 4/2212:58 amSFO - STL
1 stop12h 52mFrontier
Deal found 3/17$124
Mon 4/157:51 pmSTL - SFO
1 stop13h 52mFrontier
Fri 4/1912:58 amSFO - STL
1 stop6h 49mFrontier
Deal found 3/18$132
Thu 4/2510:59 pmSTL - SFO
1 stop12h 45mFrontier
Tue 4/3012:58 amSFO - STL
1 stop6h 49mFrontier
Deal found 3/17$134
Tue 4/304:50 pmSTL - SFO
1 stop9h 08mFrontier
Wed 5/19:41 pmSFO - STL
1 stop10h 37mFrontier
Deal found 3/16$140
Fri 4/129:34 pmSTL - SFO
2 stops15h 49mFrontier
Mon 4/1510:59 pmSFO - STL
1 stop9h 19mFrontier
Deal found 3/17$143
Wed 4/177:51 pmSTL - SFO
1 stop13h 52mFrontier
Thu 4/2510:40 pmSFO - STL
1 stop9h 38mFrontier
Deal found 3/17$147

Cheap American Airlines flights from St. Louis to San Francisco

Explore cheap flight options specifically provided by American Airlines for the route between St. Louis and San Francisco. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
Take a gander at the lowest prices we've found on American Airlines flights from St. Louis to San Francisco. Make sure to examine the flight information before completing your reservation.
Thu 4/255:20 amSTL - SFO
1 stop12h 26mAmerican Airlines
Wed 5/19:05 amSFO - STL
1 stop12h 52mAmerican Airlines
Deal found 3/17$363
Fri 8/162:38 pmSTL - SFO
1 stop7h 49mAmerican Airlines
Mon 8/196:00 amSFO - STL
1 stop9h 17mAmerican Airlines
Deal found 3/17$435
Sun 3/245:15 amSTL - SFO
2 stops11h 03mAmerican Airlines
Sun 3/316:50 pmSFO - STL
2 stops11h 37mAmerican Airlines
Deal found 3/18$825

Cheap St. Louis to San Francisco flights in March & April 2024

Find cheap flight options from St. Louis to San Francisco specifically for the months of March and April 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,145,932 searches. Prices were last updated on March 19, 2024.
Check out some of the best flight deals from St. Louis to San Francisco in 2024. For more flight deals, be sure to check back very soon.
Tue 4/1610:59 pmSTL - SFO
1 stop10h 44mFrontier
Tue 4/239:25 pmSFO - STL
1 stop10h 53mFrontier
Deal found 3/17$121
Tue 4/1610:59 pmSTL - SFO
1 stop12h 45mFrontier
Tue 4/234:19 pmSFO - STL
1 stop15h 59mFrontier
Deal found 3/17$122
Tue 4/1610:59 pmSTL - SFO
1 stop10h 44mFrontier
Mon 4/2212:58 amSFO - STL
1 stop12h 52mFrontier
Deal found 3/17$123
Tue 4/167:51 pmSTL - SFO
1 stop13h 52mFrontier
Mon 4/2212:58 amSFO - STL
1 stop12h 52mFrontier
Deal found 3/17$124
Mon 4/157:51 pmSTL - SFO
1 stop13h 52mFrontier
Fri 4/1912:58 amSFO - STL
1 stop6h 49mFrontier
Deal found 3/18$132
Thu 4/2510:59 pmSTL - SFO
1 stop12h 45mFrontier
Tue 4/3012:58 amSFO - STL
1 stop6h 49mFrontier
Deal found 3/17$134
Tue 4/1610:59 pmSTL - SFO
1 stop10h 44mFrontier
Fri 4/198:50 pmSFO - STL
1 stop10h 57mFrontier
Deal found 3/18$138
Tue 4/304:50 pmSTL - SFO
1 stop9h 08mFrontier
Wed 5/19:41 pmSFO - STL
1 stop10h 37mFrontier
Deal found 3/16$140
Fri 4/129:34 pmSTL - SFO
2 stops15h 49mFrontier
Mon 4/1510:59 pmSFO - STL
1 stop9h 19mFrontier
Deal found 3/17$143

St. Louis to San Francisco 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and San Francisco in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
Check out some of the best flight deals from St. Louis to San Francisco in 2024. For more flight deals, be sure to check back very soon.
Tue 4/1610:59 pmSTL - SFO
1 stop10h 44mFrontier
Tue 4/239:25 pmSFO - STL
1 stop10h 53mFrontier
Deal found 3/17$121
Tue 4/1610:59 pmSTL - SFO
1 stop12h 45mFrontier
Tue 4/234:19 pmSFO - STL
1 stop15h 59mFrontier
Deal found 3/17$122
Tue 4/1610:59 pmSTL - SFO
1 stop10h 44mFrontier
Mon 4/2212:58 amSFO - STL
1 stop12h 52mFrontier
Deal found 3/17$123
Tue 4/167:51 pmSTL - SFO
1 stop13h 52mFrontier
Mon 4/2212:58 amSFO - STL
1 stop12h 52mFrontier
Deal found 3/17$124
Mon 4/157:51 pmSTL - SFO
1 stop13h 52mFrontier
Fri 4/1912:58 amSFO - STL
1 stop6h 49mFrontier
Deal found 3/18$132
Thu 4/2510:59 pmSTL - SFO
1 stop12h 45mFrontier
Tue 4/3012:58 amSFO - STL
1 stop6h 49mFrontier
Deal found 3/17$134
Tue 4/1610:59 pmSTL - SFO
1 stop10h 44mFrontier
Fri 4/198:50 pmSFO - STL
1 stop10h 57mFrontier
Deal found 3/18$138
Tue 4/304:50 pmSTL - SFO
1 stop9h 08mFrontier
Wed 5/19:41 pmSFO - STL
1 stop10h 37mFrontier
Deal found 3/16$140
Fri 4/129:34 pmSTL - SFO
2 stops15h 49mFrontier
Mon 4/1510:59 pmSFO - STL
1 stop9h 19mFrontier
Deal found 3/17$143

St. Louis to San Francisco flights leaving soon

Find last-minute flight options from St. Louis to San Francisco for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
Consider one of these great deals we found on last-minute flights from St. Louis to San Francisco. Users should be sure to double check the price, date, and time of their last-minute flight.
Wed 3/277:37 pmSTL - SFO
1 stop13h 09mFrontier
Mon 4/18:52 pmSFO - STL
1 stop11h 31mFrontier
Deal found 3/17$177
Tue 3/2610:04 pmSTL - SFO
1 stop27h 43mFrontier
Mon 4/18:52 pmSFO - STL
1 stop11h 31mFrontier
Deal found 3/17$178
Mon 3/257:37 pmSTL - SFO
1 stop14h 08mFrontier
Tue 3/268:52 pmSFO - STL
1 stop11h 31mFrontier
Deal found 3/17$186
Mon 3/257:37 pmSTL - SFO
1 stop14h 08mFrontier
Mon 4/18:52 pmSFO - STL
1 stop11h 31mFrontier
Deal found 3/17$197
Thu 3/2811:15 pmSTL - SFO
1 stop26h 42mFrontier
Mon 4/18:52 pmSFO - STL
1 stop11h 31mFrontier
Deal found 3/17$198
Tue 3/267:37 pmSTL - SFO
1 stop14h 08mFrontier
Wed 3/279:50 amSFO - STL
2 stops34h 25mFrontier
Deal found 3/17$199
Mon 3/257:37 pmSTL - SFO
1 stop14h 08mFrontier
Tue 3/264:48 pmSFO - STL
2 stops15h 24mFrontier
Deal found 3/17$221
Wed 3/277:37 pmSTL - SFO
1 stop13h 09mFrontier
Fri 3/2912:57 amSFO - STL
1 stop7h 45mFrontier
Deal found 3/17$227
Tue 3/2610:04 pmSTL - SFO
2 stops19h 49mFrontier
Mon 4/18:52 pmSFO - STL
1 stop11h 31mFrontier
Deal found 3/17$233

One-way flights to San Francisco from St. Louis

Search for one-way flight options from St. Louis to San Francisco. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
Take a look at some of the best available options we've come across on one-way flights from St. Louis to San Francisco. Users can also find round-trip St. Louis to San Francisco flights by using the search form above.
Tue 4/1610:59 pmSTL - SFO
1 stop12h 45mFrontier
Deal found 3/18$62
Wed 4/109:39 pmSTL - SFO
1 stop11h 57mFrontier
Deal found 3/17$80
Tue 4/1610:59 pmSTL - SFO
2 stops21h 00mMultiple Airlines
Deal found 3/18$84
Wed 4/109:39 pmSTL - SFO
2 stops15h 44mFrontier
Deal found 3/17$85
Wed 3/277:37 pmSTL - SFO
1 stop13h 09mFrontier
Deal found 3/18$94
Thu 5/167:29 pmSTL - SFO
1 stop7h 59mFrontier
Deal found 3/18$98
Wed 3/277:37 pmSTL - SFO
2 stops16h 36mFrontier
Deal found 3/18$103
Mon 3/257:37 pmSTL - SFO
1 stop18h 39mFrontier
Deal found 3/17$104
Sat 4/1312:59 pmSTL - SFO
2 stops8h 28mFrontier
Deal found 3/18$107

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

Customize your flight search to find flights from St. Louis to San Francisco 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 3,145,932 searches. Data last updated March 19, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$121 - $367

Route

Depart

Return

Price

Lambert-St LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Tue 4/16

1 stop10h 44m

San Francisco

Tue 4/23

1 stop10h 53m

$121

Lambert-St LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Tue 4/16

1 stop12h 45m

San Francisco

Tue 4/23

1 stop15h 59m

$122

Lambert-St LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Tue 4/16

1 stop10h 44m

San Francisco

Mon 4/22

1 stop12h 52m

$123

Lambert-St LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Tue 4/16

1 stop13h 52m

San Francisco

Mon 4/22

1 stop12h 52m

$124

Lambert-St LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Mon 4/15

1 stop13h 52m

San Francisco

Fri 4/19

1 stop6h 49m

$132

Lambert-St LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Mon 4/15

1 stop16h 41m

San Francisco

Fri 4/19

1 stop6h 49m

$144

Lambert-St LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Sun 6/16

1 stop18h 22m

San Francisco

Mon 7/15

1 stop10h 25m

$330

Lambert-St LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Thu 4/25

1 stop12h 26m

San Francisco

Wed 5/1

1 stop12h 52m

$363

Lambert-St LouisSan Francisco

STL - SFO

STLSFO

Lambert-St Louis

Thu 4/25

2 stops11h 46m

San Francisco

Wed 5/1

2 stops10h 08m

$367

Flights are sorted by cheapest first

Deals found on 3/17

When is the best time to book a flight from St. Louis to San Francisco?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to San Francisco. Price data was last updated on January 28, 2024.
The best time to book flights from St. Louis to San Francisco is 13 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

When is the cheapest time to fly from St. Louis to San Francisco?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to San Francisco. Price data was last updated on March 10, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to San Francisco flight should consider departing on Monday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to San Francisco by month

Plan your trip from St. Louis to San Francisco by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to San Francisco is currently $91 while a round-trip flight costs $203. Price data was last updated on March 10, 2024.

Currently, October is the cheapest month in which you can book a flight from St. Louis to San Francisco (average of $268). Flying from St. Louis to San Francisco in June is currently the most expensive (average of $386). 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.

January

$274

February

$281

March

$331

April

$324

May

$317

June

$386

July

$370

August

$298

September

$271

October

$268

November

$287

December

$268

Temperature and rainfall in San Francisco by month

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

SFO

Temperature

51.8 - 62.6 °F

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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. Reviews last updated March 19, 2024.
Read reviews from past customers who have flown Frontier, American Airlines and Delta from St. Louis to San Francisco. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
9,147 reviews

Overall

8.1

Crew

8.6

Boarding

8.3

Entertainment

7.4

Comfort

7.9

Food

7.3

Reviews

1 / 10

This is trivial however, I was in row 11B there aren’t any windows in that row. I enjoy being able to look out the window.

8.1
Very good
9,147 reviews
8.1
Very good
9,147 reviews

Overall

8.1

Crew

8.6

Boarding

8.3

Entertainment

7.4

Comfort

7.9

Food

7.3

Reviews

1 / 10

This is trivial however, I was in row 11B there aren’t any windows in that row. I enjoy being able to look out the window.

8.1
Very good
11,551 reviews
8.1
Very good
9,147 reviews

Overall

8.1

Crew

8.6

Boarding

8.3

Entertainment

7.4

Comfort

7.9

Food

7.3

Reviews

1 / 10

This is trivial however, I was in row 11B there aren’t any windows in that row. I enjoy being able to look out the window.

7.4
Good
11,602 reviews
8.1
Very good
9,147 reviews

Overall

8.1

Crew

8.6

Boarding

8.3

Entertainment

7.4

Comfort

7.9

Food

7.3

Reviews

1 / 10

This is trivial however, I was in row 11B there aren’t any windows in that row. I enjoy being able to look out the window.

7.3
Good
15,312 reviews
8.1
Very good
9,147 reviews

Overall

8.1

Crew

8.6

Boarding

8.3

Entertainment

7.4

Comfort

7.9

Food

7.3

Reviews

1 / 10

This is trivial however, I was in row 11B there aren’t any windows in that row. I enjoy being able to look out the window.

7.3
Good
704 reviews
8.1
Very good
9,147 reviews

Overall

8.1

Crew

8.6

Boarding

8.3

Entertainment

7.4

Comfort

7.9

Food

7.3

Reviews

1 / 10

This is trivial however, I was in row 11B there aren’t any windows in that row. I enjoy being able to look out the window.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • Can I find flights from St. Louis to San Francisco for under $200 on Cheapflights?

    Yes, there are multiple flights from St. Louis to San Francisco for under $200. The cheapest flight booked recently is on Frontier for just $121, but on average you can expect to pay $146.

  • Are there last-minute flights available from St. Louis to San Francisco for under $200?

    There are currently 20+ open flights from St. Louis to San Francisco within the next 7 days for less than $200.

  • What is the cheapest airline to fly from St. Louis to San Francisco round-trip?

    According to our current data, Frontier ($121), offers the cheapest pricing from St. Louis to San Francisco. Frontier is currently priced 70% below the average price you’ll pay for this route.

  • What are the most popular airlines that fly from St. Louis to San Francisco?

  • What does STL to SFO mean?

    This is defined as Lambert-St Louis Airport (STL) and San Francisco Airport (SFO). Codes like San Francisco Airport are often used to just call airports uniquely.

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
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

Discover the top 7 airlines that operate flights from St. Louis to San Francisco. 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 3,145,932 searches. Data last updated March 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$137Average$231FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$238Average$321FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
Alaska AirlinesCheapest$272Average$460FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
DeltaCheapest$298Average$453FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$300Average$475FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$316Average$459FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Linear Air TaxiCheapest$65,627Average$65,627FlexibilityNo cancel feeOn-timeN/A
Search Linear Air Taxi flights

Search flights from St. Louis to San Francisco by cabin class

Find flights from St. Louis to San Francisco, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from St. Louis to San Francisco

Find hourly flight availability from St. Louis to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 19, 2024.
0%of flight departuresEarly morningMidnight to 6 am
0%of flight departuresMorning6 am to noon
100%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to San Francisco?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to San Francisco from St. Louis today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from St. Louis to San Francisco?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Francisco from St. Louis.

Can Cheapflights find flights from St. Louis to San Francisco with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from St. Louis to San Francisco, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from St. Louis to San Francisco become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Francisco from St. Louis today and book when prices fit your budget.

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