Can I fly direct from St. Louis to San Francisco?

Direct flights from St. Louis to San Francisco are available, but they represent a smaller portion of the total routes. Historically, approximately 6.8% of flights on this route have been direct. For connecting flights, the median number of stopovers across the trailing 90 days was 2.

How long is the flight from St. Louis to San Francisco?

A direct flight from St. Louis to San Francisco typically takes about 4 hours and 20 minutes, covering a distance of 2787 kilometers. For flights with one stop, the median duration extends to approximately 7 hours and 44 minutes. This includes the time spent during the layover.

How often do cheap flights from St. Louis to San Francisco come up?

Historically, cheap flights from St. Louis to San Francisco come up frequently. This route is consistently identified as one with regular opportunities for economical travel. Travelers can often find favorable prices for this destination.

Flights From St. Louis

To San Francisco

Cheap Flights from St. Louis to San Francisco

Browse current best options from St. Louis. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

St. Louis

RatePunk searches hundreds of travel sites at once for deals on flights to San Francisco

Prices updated 1 day ago

461 airlines compared

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Fares are subject to change and may not be available for all dates. (Data last updated Sep 14, 2026.)

Today’s best flight deals from St. Louis to San Francisco

Explore current cheapest deals departing from St. Louis to San Francisco

2026-09-29 – 2026-09-30
STL - San Francisco
73% AI deal score
$393
$289
Round trip
2026-09-26 – 2026-09-30
STL - San Francisco
70% AI deal score
$432
$368
Round trip
2026-09-24 – 2026-09-28
STL - San Francisco
70% AI deal score
$439
$374
Round trip
2026-09-25 – 2026-09-27
STL - San Francisco
68% AI deal score
$437
$416
Round trip
2026-09-25 – 2026-09-28
STL - San Francisco
48% AI deal score
$438
$452
Round trip
2026-09-25 – 2026-09-29
STL - San Francisco
45% AI deal score
$435
$461
Round trip
2026-09-22 – 2026-09-25
STL - San Francisco
48% AI deal score
$484
$682
Round trip
2026-09-21 – 2026-09-25
STL - San Francisco
46% AI deal score
$527
$835
Round trip
2026-09-15 – 2026-09-29
STL - San Francisco
45% AI deal score
$450
$921
Round trip
2026-09-21 – 2026-09-23
STL - San Francisco
45% AI deal score
$457
$1,029
Round trip

St. Louis to San Francisco: Overview

Insights for flights from St. Louis to San Francisco

A typical journey from St. Louis to San Francisco takes about 9h 41m, including connections. Given that most itineraries connect at least once, this median duration reflects the time spent on connecting flights. For those itineraries that do connect, the typical number of stopovers is 2.

For travelers seeking cheap flights from St. Louis to San Francisco, fares typically range from $315–$555, with a median of $397. Right now, current fares are above the typical level. Only 1% of recent fares were classified as a good price, indicating that finding lower prices may require flexibility or advance planning.

When is the cheapest time to fly from St. Louis to San Francisco? You'll find the most favorable prices in March, with a median fare of $190. Other economical months include February, where the median fare is $252, and October, with a median of $262. New deals for this route appear almost daily, offering frequent opportunities to find better prices.

The distance between St. Louis and San Francisco is approximately 2787 kilometers, classifying this as a medium-haul flight. This distance typically involves a longer travel time, often with one or more connections, as reflected in the overall journey duration.

How much is a round trip from St. Louis to San Francisco

Regular price: $221 - $430

Prices for flights from St. Louis to San Francisco are currently below the regular range.

The regular price range for flights from St. Louis to San Francisco is typically between $221 and $430. The current lowest deal is $209 with Frontier Airlines for travel from Oct 24-Oct 31.

now $209

Low $221

High $430

The cheapest time to fly from St. Louis to San Francisco

The cheapest month to fly from St. Louis to San Francisco is March, with a median price of $190. The most expensive month is July, with a median price of $718. Prices are generally lower from January to December.

March

Cheapest

Flights from $190

July

Most Expensive

Flights from $718

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from St. Louis to San Francisco

United Airlines

Last-minute flights going from St. Louis to San Francisco

Thu, Sep 17

⌛ Last-Minute

STL - San Francisco

St. Louis (STL) - San Francisco (SFO)

Frontier Airlines

$607

$513

One-way

Sat, Sep 19

⌛ Last-Minute

STL - San Francisco

St. Louis (STL) - San Francisco (SFO)

Frontier Airlines

$611

$455

One-way

Mon, Sep 21

⌛ Last-Minute

STL - San Francisco

St. Louis (STL) - San Francisco (SFO)

Frontier Airlines

$537

$428

One-way

Wed, Sep 23

⌛ Last-Minute

STL - San Francisco

St. Louis (STL) - San Francisco (SFO)

Frontier Airlines

$462

$429

One-way

Thu, Sep 24

⌛ Last-Minute

STL - San Francisco

St. Louis (STL) - San Francisco (SFO)

Frontier Airlines

$439

$374

One-way

Fri, Sep 25

⌛ Last-Minute

STL - San Francisco

St. Louis (STL) - San Francisco (SFO)

Frontier Airlines

$437

$416

One-way

Biggest price drops on these dates for flights from St. Louis to San Francisco

14 nights

Nov 18 - Dec 2

$258 → $254

17 nights

Nov 18 - Dec 5

$250 → $248

19 nights

Nov 18 - Dec 7

$249 → $254

3 nights

Dec 2 - Dec 5

$289 → $300

Popular Airports to fly from St. Louis to San Francisco

St. Louis - San Francisco route insights

💸 Price insights

Recent fares are above the typical level.

Recent fares for St. Louis to San Francisco are above the typical level at $397.

📅 Best time to fly

Fly in March for the lowest prices.

Historically, March offers the lowest median price at $190 for this route.

⏱️ Flight duration

Connecting flights typically take 9h 41m.

The median flight duration for St. Louis to San Francisco is 9h 41m.

✈️ Airlines & availability

Connecting flights are dominant on this route.

Connecting flights make up 93.2% of recent fares, with a median of 2 stopovers.

🏆 Airline highlight

United Airlines offers direct flights.

United Airlines has offered direct flights on the St. Louis to San Francisco route.

🎯 Booking tip

Deals appear frequently for this route.

Deals for flights from St. Louis to San Francisco appear frequently.

St. Louis main airports to depart from

St. Louis Lambert International (STL)

Cheapest

St. Louis Lambert International Airport is a good option for flights from St. Louis to San Francisco.

📍 ~20 km from St. Louis (reachable by car or train)

💸 Flights from ~$226

San Francisco main airports to arrive at

San Francisco International (SFO)

Cheapest

San Francisco International is a primary arrival airport for flights from St. Louis.

📍 ~18 km from San Francisco (reachable by car)

💸 Flights from ~$203

Airports nearby San Francisco used as alternative

Oakland International (OAK)

Cheapest

Oakland International is a primary alternative, offering extensive domestic options and direct BART rail access.

📍 ~18 km from San Francisco (reachable by public transit)

💸 Flights from ~$252

Business & First Class Flight Deals to San Francisco

Discover luxury on the budget with premium cabin class on flights from St. Louis to San Francisco.

Elite

Best Elite deals to San Francisco

Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.

From STL

Elite

Oct 24

San Francisco, United States

84% AI deal score

$1,869

$1,279

Save $590

Alaska Airlines, Inc.

Business Class

From STL

Elite

Oct 24

San Francisco, United States

84% AI deal score

$1,823

$1,279

Save $544

Alaska Airlines, Inc.

Business Class

From STL

Elite

Dec 10

San Francisco, United States

84% AI deal score

$1,624

$1,117

Save $507

United Airlines

Business Class

From STL

Elite

Oct 24

San Francisco, United States

83% AI deal score

$1,787

$1,279

Save $508

Alaska Airlines, Inc.

Business Class

From STL

Elite

Oct 02

San Francisco, United States

83% AI deal score

$1,557

$1,166

Save $391

United Airlines

Business Class

From STL

Elite

Nov 23

San Francisco, United States

82% AI deal score

$1,585

$1,178

Save $407

United Airlines

Business Class

From STL

Elite

Nov 06

San Francisco, United States

78% AI deal score

$1,684

$1,278

Save $406

Alaska Airlines, Inc.

Business Class

From STL

Elite

Dec 05

San Francisco, United States

78% AI deal score

$1,771

$1,278

Save $493

Alaska Airlines, Inc.

Business Class

From STL

Elite

Oct 24

San Francisco, United States

78% AI deal score

$1,672

$1,279

Save $393

Alaska Airlines, Inc.

Business Class

From STL

Elite

Oct 24

San Francisco, United States

78% AI deal score

$1,669

$1,279

Save $390

Alaska Airlines, Inc.

Business Class

From STL

Elite

Oct 24

San Francisco, United States

78% AI deal score

$1,668

$1,279

Save $389

Alaska Airlines, Inc.

Business Class

From STL

Elite

Nov 06

San Francisco, United States

77% AI deal score

$1,589

$1,278

Save $311

Alaska Airlines, Inc.

Business Class

Frequently Asked Questions About Flights to San Francisco

Historically, the best prices for flights from St. Louis to San Francisco have been found within 0-6 days of departure. During this period, the average price was $253. Booking 7-13 days out saw an average price of $348, while prices for bookings made 28-59 days in advance were typically around $502. Across the trailing 90 days, last-minute bookings often provided the most economical options for this route.

Based on historical data from the trailing 90 days, a good price for a flight from St. Louis to San Francisco is considered to be $315 or less. The median price for this route was $397. Fares around $555 or higher typically represent the more expensive options for this journey.

Historically, March has been the cheapest month to fly from St. Louis to San Francisco, with a median price of $190. February also offered competitive prices, with a median of $252. October followed with a median price of $262. The annual median price for this route, based on data from the trailing 270 days, was $397.

Related routes

More routes from St. Louis

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Flights to San Francisco from other cities

Flights from Calgary to San Francisco Flights from Edmonton to San Francisco Flights from Montreal to San Francisco Flights from Sydney to San Francisco Flights from Tampa to San Francisco Flights from Tokyo to San Francisco Flights from Toronto to San Francisco Flights from Tucson to San Francisco Flights from Vancouver to San Francisco Flights from Vienna to San Francisco Flights from Warsaw to San Francisco Flights from Washington, D.C. to San Francisco

St. Louis to San Francisco: Overview

Insights for flights from St. Louis to San Francisco

How much is a round trip from St. Louis to San Francisco

Regular price: $221 - $430

Prices for flights from St. Louis to San Francisco are currently below the regular range.

The regular price range for flights from St. Louis to San Francisco is typically between $221 and $430. The current lowest deal is $209 with Frontier Airlines for travel from Oct 24-Oct 31.

now $209

Low $221

High $430

The cheapest time to fly from St. Louis to San Francisco

March

Cheapest

Flights from $190

July

Most Expensive

Flights from $718

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from St. Louis to San Francisco

United Airlines

Last-minute flights going from St. Louis to San Francisco

Thu, Sep 17

⌛ Last-Minute

STL - San Francisco

St. Louis (STL) - San Francisco (SFO)

Frontier Airlines

$607

$513

One-way

Sat, Sep 19

⌛ Last-Minute

STL - San Francisco

St. Louis (STL) - San Francisco (SFO)

Frontier Airlines

$611

$455

One-way

Mon, Sep 21

⌛ Last-Minute

STL - San Francisco

St. Louis (STL) - San Francisco (SFO)

Frontier Airlines

$537

$428

One-way

Wed, Sep 23

⌛ Last-Minute

STL - San Francisco

St. Louis (STL) - San Francisco (SFO)

Frontier Airlines

$462

$429

One-way

Thu, Sep 24

⌛ Last-Minute

STL - San Francisco

St. Louis (STL) - San Francisco (SFO)

Frontier Airlines

$439

$374

One-way

Fri, Sep 25

⌛ Last-Minute

STL - San Francisco

St. Louis (STL) - San Francisco (SFO)

Frontier Airlines

$437

$416

One-way

Biggest price drops on these dates for flights from St. Louis to San Francisco

14 nights

Nov 18 - Dec 2

$258 → $254

17 nights

Nov 18 - Dec 5

$250 → $248

19 nights

Nov 18 - Dec 7

$249 → $254

3 nights

Dec 2 - Dec 5

$289 → $300

Popular Airports to fly from St. Louis to San Francisco

St. Louis - San Francisco route insights

💸 Price insights

Recent fares are above the typical level.

Recent fares for St. Louis to San Francisco are above the typical level at $397.

📅 Best time to fly

Fly in March for the lowest prices.

Historically, March offers the lowest median price at $190 for this route.

⏱️ Flight duration

Connecting flights typically take 9h 41m.

The median flight duration for St. Louis to San Francisco is 9h 41m.

✈️ Airlines & availability

Connecting flights are dominant on this route.

Connecting flights make up 93.2% of recent fares, with a median of 2 stopovers.

🏆 Airline highlight

United Airlines offers direct flights.

United Airlines has offered direct flights on the St. Louis to San Francisco route.

🎯 Booking tip

Deals appear frequently for this route.

Deals for flights from St. Louis to San Francisco appear frequently.

St. Louis main airports to depart from

St. Louis Lambert International (STL)

Cheapest

St. Louis Lambert International Airport is a good option for flights from St. Louis to San Francisco.

📍 ~20 km from St. Louis (reachable by car or train)

💸 Flights from ~$226

San Francisco main airports to arrive at

San Francisco International (SFO)

Cheapest

San Francisco International is a primary arrival airport for flights from St. Louis.

📍 ~18 km from San Francisco (reachable by car)

💸 Flights from ~$203

Airports nearby San Francisco used as alternative

Oakland International (OAK)

Cheapest

Oakland International is a primary alternative, offering extensive domestic options and direct BART rail access.

San Francisco, United States

77% AI deal score

$1,589

$1,278

Save $311

Alaska Airlines, Inc.

Business Class

Frequently Asked Questions About Flights to San Francisco

Cheap Flights from St. Louis to San Francisco

Today’s best flight deals from St. Louis to San Francisco

St. Louis to San Francisco: Overview

Insights for flights from St. Louis to San Francisco

How much is a round trip from St. Louis to San Francisco

The cheapest time to fly from St. Louis to San Francisco

Direct flights from St. Louis to San Francisco

Last-minute flights going from St. Louis to San Francisco

Biggest price drops on these dates for flights from St. Louis to San Francisco

Popular Airports to fly from St. Louis to San Francisco

St. Louis - San Francisco route insights

Recent fares are above the typical level.

Fly in March for the lowest prices.

Connecting flights typically take 9h 41m.

Connecting flights are dominant on this route.

United Airlines offers direct flights.

Deals appear frequently for this route.

St. Louis main airports to depart from

San Francisco main airports to arrive at

Airports nearby San Francisco used as alternative

Business & First Class Flight Deals to San Francisco

Best Elite deals to San Francisco

Oct 24

Oct 24

Dec 10

Oct 24

Oct 02

Nov 23

Nov 06

Dec 05

Oct 24

Oct 24

Oct 24

Nov 06

Frequently Asked Questions About Flights to San Francisco

How early should I book St. Louis to San Francisco flights to get the cheapest price?

What's a cheap fare from St. Louis to San Francisco?

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

Can I fly direct from St. Louis to San Francisco?

How long is the flight from St. Louis to San Francisco?

How often do cheap flights from St. Louis to San Francisco come up?

Related routes

More routes from St. Louis

Flights to San Francisco from other cities

St. Louis to San Francisco: Overview

Insights for flights from St. Louis to San Francisco

How much is a round trip from St. Louis to San Francisco

The cheapest time to fly from St. Louis to San Francisco

Direct flights from St. Louis to San Francisco

Last-minute flights going from St. Louis to San Francisco

Biggest price drops on these dates for flights from St. Louis to San Francisco

Popular Airports to fly from St. Louis to San Francisco

St. Louis - San Francisco route insights

Recent fares are above the typical level.

Fly in March for the lowest prices.

Connecting flights typically take 9h 41m.

Connecting flights are dominant on this route.

United Airlines offers direct flights.

Deals appear frequently for this route.

St. Louis main airports to depart from

San Francisco main airports to arrive at

Airports nearby San Francisco used as alternative

Business & First Class Flight Deals to San Francisco

Best Elite deals to San Francisco

Oct 24

Oct 24

Dec 10

Oct 24

Oct 02

Nov 23

Nov 06

Dec 05

Oct 24

Oct 24

Oct 24

Nov 06

Frequently Asked Questions About Flights to San Francisco

How early should I book St. Louis to San Francisco flights to get the cheapest price?

What's a cheap fare from St. Louis to San Francisco?

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