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 overall flight options. In the trailing 90 days, approximately 6.8% of flights on this route were direct. For flights with connections, the median number of stopovers was 2.

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

The median flight time for a direct flight from St. Louis to San Francisco is typically 4 hours and 20 minutes. For flights with one stop, the median duration is considerably longer, averaging 7 hours and 44 minutes. The distance covered on this route is approximately 2787 kilometers.

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

Cheap flights from St. Louis to San Francisco are considered to come up frequently. This route is consistently observed to have favorable pricing opportunities. Travelers can typically find good deals with regularity.

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 2 days ago

405 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Jul 26, 2026.)

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

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

2026-10-28 – 2026-11-18
STL - San Francisco
73% AI deal score
$261
$211
Round trip
2026-10-28 – 2026-11-10
STL - San Francisco
73% AI deal score
$268
$217
Round trip
2026-08-10 – 2026-08-19
STL - San Francisco
72% AI deal score
$278
$229
Round trip
2026-10-28 – 2026-11-12
STL - San Francisco
71% AI deal score
$264
$230
Round trip
2026-09-10 – 2026-09-21
STL - San Francisco
72% AI deal score
$314
$245
Round trip
2026-10-05 – 2026-10-24
STL - San Francisco
66% AI deal score
$239
$245
Round trip
2026-09-05 – 2026-09-10
STL - San Francisco
78% AI deal score
$356
$257
Round trip
2026-09-10 – 2026-09-20
STL - San Francisco
72% AI deal score
$318
$257
Round trip
2026-08-10 – 2026-08-15
STL - San Francisco
71% AI deal score
$306
$258
Round trip
2026-09-14 – 2026-09-17
STL - San Francisco
78% AI deal score
$366
$258
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 for this route connect at least once, this duration reflects the overall travel time you can expect. The journey covers a substantial distance of 2787 km, classifying it as a medium-haul flight.

For travelers looking for 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, and only 1% of recent fares were classified as a good price. New deals appear almost daily, so setting up a price alert can help you track fluctuations.

When is the cheapest time to fly from St. Louis to San Francisco? The data indicates that March is the most affordable month, with a median fare of $190. Following closely are February, with a median fare of $252, and October, with a median fare of $262. These months offer significantly lower prices compared to the overall median.

Most itineraries for this route connect at least once, with only 6.8% of recent fares being non-stop. For connecting flights, the typical number of stopovers is 2. This means that if you fly from St. Louis to San Francisco, you will likely have one or more stops along the way, contributing to the overall journey time.

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

Regular price: $234 - $417

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 $234 and $417. The current lowest deal is $211 with Frontier Airlines for travel from Oct 13-Oct 19.

now $211

Low $234

High $417

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

Fri, Aug 7

⌛ Last-Minute

STL - San Francisco

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

Frontier Airlines

$361

$334

One-way

Mon, Aug 10

⌛ Last-Minute

STL - San Francisco

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

Frontier Airlines

$298

$262

One-way

Mon, Aug 10

⌛ Last-Minute

STL - San Francisco

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

Frontier Airlines

$334

$263

One-way

Wed, Aug 12

⌛ Last-Minute

STL - San Francisco

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

Frontier Airlines

$323

$288

One-way

Thu, Aug 13

⌛ Last-Minute

STL - San Francisco

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

Frontier Airlines

$295

$248

One-way

Thu, Aug 13

⌛ Last-Minute

STL - San Francisco

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

Frontier Airlines

$323

$254

One-way

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

3 nights

Sep 9 - Sep 12

$362 → $250

31%

7 nights

Sep 9 - Sep 16

$344 → $245

29%

7 nights

Sep 15 - Sep 22

$346 → $247

29%

2 nights

Sep 21 - Sep 23

$366 → $269

27%

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 from St. Louis to San Francisco are above the typical level, with a median price of $397.

📅 Best time to fly

March is historically the cheapest month to fly

Historically, March is the cheapest month to fly, with a median price of $190.

⏱️ Flight duration

Connecting flights typically take 9h 41m

Flights from St. Louis to San Francisco typically take 9h 41m, with 2 stopovers.

✈️ Airlines & availability

Connecting flights are dominant on this route

Connecting flights are dominant on this route, making up 93.2% of recent fares.

🏆 Airline highlight

United Airlines offers direct flights

United Airlines offers direct flights from St. Louis to San Francisco.

🎯 Booking tip

Deals are frequent on this route

Deals on flights from St. Louis to San Francisco are frequent, appearing every 30 days.

St. Louis main airports to depart from

St. Louis Lambert International (STL)

Cheapest

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

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

💸 Flights from ~$212

San Francisco main airports to arrive at

San Francisco International (SFO)

Cheapest

San Francisco International Airport is a major hub for flights to the San Francisco Bay Area.

📍 ~20 km from San Francisco (reachable by car, train, and bus)

💸 Flights from ~$212

Airports nearby San Francisco used as alternative

Oakland International (OAK)

Oakland International is a useful alternative, directly accessible via BART public transit from San Francisco.

📍 ~18 km from destination city (reachable by car)

💸 Flights from ~$376

Business & First Class Flight Deals to San Francisco

87% AI deal score

$1,912

$1,154

Save $758

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 around $253. Booking 7-13 days out saw an average price of $348, while prices for flights booked 28-59 days in advance were typically around $502. This suggests that waiting until closer to your travel date may result in more favorable fares.

Across the trailing quarter, a good price for a flight from St. Louis to San Francisco was considered to be $315 or less. The median price for this route was $397. Fares around $555 were in the higher range, representing the 75th percentile of prices observed over the trailing 90 days.

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 fares, with a median price of $252. The annual median price for this route was $397, indicating that these months typically provide significant savings compared to the yearly average.

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: $234 - $417

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 $234 and $417. The current lowest deal is $211 with Frontier Airlines for travel from Oct 13-Oct 19.

now $211

Low $234

High $417

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

Fri, Aug 7

⌛ Last-Minute

STL - San Francisco

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

Frontier Airlines

$361

$334

One-way

Mon, Aug 10

⌛ Last-Minute

STL - San Francisco

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

Frontier Airlines

$298

$262

One-way

Mon, Aug 10

⌛ Last-Minute

STL - San Francisco

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

Frontier Airlines

$334

$263

One-way

Wed, Aug 12

⌛ Last-Minute

STL - San Francisco

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

Frontier Airlines

$323

$288

One-way

Thu, Aug 13

⌛ Last-Minute

STL - San Francisco

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

Frontier Airlines

$295

$248

One-way

Thu, Aug 13

⌛ Last-Minute

STL - San Francisco

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

Frontier Airlines

$323

$254

One-way

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

3 nights

Sep 9 - Sep 12

$362 → $250

31%

7 nights

Sep 9 - Sep 16

$344 → $245

29%

7 nights

Sep 15 - Sep 22

$346 → $247

29%

2 nights

Sep 21 - Sep 23

$366 → $269

27%

Popular Airports to fly from St. Louis to San Francisco