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 24 days ago
486,190 searches this week
171 airlines compared
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Fares are subject to change and may not be available for all dates. (Data last updated May 29, 2026.)
Today’s best flight deals from St. Louis to San Francisco
Explore current cheapest deals departing from St. Louis to San Francisco
Round trip
Sort by: Cheapest
July 14 - July 21
STL - San Francisco
$280
$212
Round trip
August 18 - August 31
STL - San Francisco
$263
$220
Round trip
July 16 - July 21
STL - San Francisco
$285
$222
Round trip
July 21 - July 29
STL - San Francisco
$268
$225
Round trip
July 21 - August 11
STL - San Francisco
$252
$225
Round trip
July 21 - August 5
STL - San Francisco
$249
$225
Round trip
July 21 - July 22
STL - San Francisco
$282
$225
Round trip
July 21 - August 12
STL - San Francisco
$252
$226
Round trip
July 21 - August 19
STL - San Francisco
$253
$226
Round trip
July 15 - July 20
STL - San Francisco
$285
$227
Round trip
Unlock all 500+ flight deals to San Francisco and get alerts when great deals appear
Route Intelligence — 486,190 Searches this Week
Insights for flights from St. Louis to San Francisco
How much is a round trip from St. Louis to San Francisco
Regular price: $241 - $387
Prices for flights from St. Louis to San Francisco are currently below the regular range.
The regular price range for this route is $241 to $387. The current lowest deal is $212 with Frontier Airlines, for travel from Jul 14 to Jul 21.
now $212
Low $241
High $387
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
Flights from $190
July
Flights from $718
Direct flights from St. Louis to San Francisco
United Airlines
Last-minute flights going from St. Louis to San Francisco
Tue, Jun 23
STL - San Francisco
St. Louis (STL) - San Francisco (SFO)
Frontier Airlines
$530
$448
One-way
Thu, Jun 25
STL - San Francisco
St. Louis (STL) - San Francisco (SFO)
Frontier Airlines
$484
$449
One-way
Thu, Jun 25
STL - San Francisco
St. Louis (STL) - San Francisco (SFO)
Frontier Airlines
$487
$450
One-way
Fri, Jun 26
STL - San Francisco
St. Louis (STL) - San Francisco (SFO)
Frontier Airlines
$467
$399
One-way
Wed, Jul 1
STL - San Francisco
St. Louis (STL) - San Francisco (SFO)
Frontier Airlines
$279
$243
One-way
Wed, Jul 1
STL - San Francisco
St. Louis (STL) - San Francisco (SFO)
Frontier Airlines
$272
$297
One-way
Biggest price drops on these dates for flights from St. Louis to San Francisco
Sep 1 - Sep 2
$365 → $255
30%
Sep 10 - Sep 14
$371 → $289
22%
Jun 23 - Jun 26
$530 → $448
15%
Sep 15 - Sep 22
$367 → $290
21%
Popular Airports to fly from St. Louis to San Francisco
St. Louis - San Francisco route insights
💸 Price insights
Recent fares near the typical level
Recent fares from St. Louis to San Francisco are near the typical level of $315.
📅 Best time to fly
March is historically cheapest at $190
Historically, March is the cheapest month to fly, with a median price of $190.
⏱️ Flight duration
Typically 9h 41m duration
Flights from St. Louis to San Francisco typically take 9 hours and 41 minutes.
✈️ Airlines & availability
Connecting flights are dominant
Connecting flights are dominant, with 8.2% direct flights and 1 stopover when connecting.
🏆 Airline highlight
United Airlines offers direct flights
United Airlines is one of the airlines that offers direct flights on this route.
🎯 Booking tip
Deals are frequent for this route
Deals for flights from St. Louis to San Francisco are frequent, with 1.03 deals per day.
St. Louis main airports to depart from
St. Louis Lambert International (STL)
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)
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
San Jose International (SJC)
San Jose International is a major international airport serving the South Bay tech corridor with fewer weather delays.
📍 ~70 km from destination city (reachable by car)
💸 Flights from ~$233
Sacramento International (SMF)
Sacramento International is a large-scale airport with a robust domestic route network for northern and eastern metro areas.
📍 ~125 km from destination city (reachable by car)
💸 Flights from ~$233
Charles M. Schulz–Sonoma County (STS)
Charles M. Schulz–Sonoma County is convenient for travelers in the North Bay and Wine Country.
📍 ~80 km from destination city (reachable by car)
💸 Flights from ~$425
Monterey Regional (MRY)
Monterey Regional is an alternative for travelers in the southern coastal region with a less crowded environment.
📍 ~140 km from destination city (reachable by car)
💸 Flights from ~$202
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
Sep 29
San Francisco, United States
90% AI deal score
$2,245
$1,130
Save $1,115
From STL
Elite
Sep 01
San Francisco, United States
89% AI deal score
$2,127
$1,130
Save $997
From STL
Elite
Sep 15
San Francisco, United States
89% AI deal score
$2,143
$1,151
Save $992
From STL
Elite
Sep 08
San Francisco, United States
88% AI deal score
$1,949
$1,129
Save $820
From STL
Elite
Sep 30
San Francisco, United States
88% AI deal score
$2,061
$1,137
Save $924
From STL
Elite
Sep 29
San Francisco, United States
88% AI deal score
$2,050
$1,137
Save $913
From STL
Elite
Sep 15
San Francisco, United States
87% AI deal score
$1,932
$1,128
Save $804
From STL
Elite
Sep 01
San Francisco, United States
87% AI deal score
$1,902
$1,130
Save $772
From STL
Elite
Sep 15
San Francisco, United States
87% AI deal score
$1,919
$1,134
Save $785
From STL
Elite
Aug 22
San Francisco, United States
87% AI deal score
$1,847
$1,147
Save $700
From STL
Elite
Aug 24
San Francisco, United States
87% AI deal score
$1,900
$1,147
Save $753
From STL
Elite
Sep 01
San Francisco, United States
87% AI deal score
$1,912
$1,154
Save $758
From STL
Elite
Jul 15
San Francisco, United States
86% AI deal score
$1,469
$968
Save $501
From STL
Elite
Aug 11
San Francisco, United States
85% AI deal score
$1,660
$1,130
Save $530
From STL
Elite
Aug 11
San Francisco, United States
85% AI deal score
$1,690
$1,130
Save $560
From STL
Elite
Aug 11
San Francisco, United States
85% AI deal score
$1,660
$1,130
Save $530
From STL
Elite
Aug 11
San Francisco, United States
85% AI deal score
$1,718
$1,130
Save $588
From STL
Elite
Aug 22
San Francisco, United States
85% AI deal score
$1,714
$1,147
Save $567
From STL
Elite
Aug 22
San Francisco, United States
85% AI deal score
$1,719
$1,147
Save $572
From STL
Elite
Aug 20
San Francisco, United States
85% AI deal score
$1,710
$1,147
Save $563
From STL
Elite
Aug 24
San Francisco, United States
85% AI deal score
$1,715
$1,147
Save $568
From STL
Elite
Aug 24
San Francisco, United States
85% AI deal score
$1,716
$1,147
Save $569
From STL
Elite
Aug 20
San Francisco, United States
85% AI deal score
$1,708
$1,147
Save $561
From STL
Elite
Aug 20
San Francisco, United States
85% AI deal score
$1,756
$1,147
Save $609
From STL
Elite
Aug 13
San Francisco, United States
85% AI deal score
$1,668
$1,147
Save $521
From STL
Elite
Aug 13
San Francisco, United States
85% AI deal score
$1,666
$1,147
Save $519
From STL
Elite
Aug 13
San Francisco, United States
85% AI deal score
$1,714
$1,147
Save $567
From STL
Elite
Aug 13
San Francisco, United States
85% AI deal score
$1,740
$1,147
Save $593
From STL
Elite
Aug 11
San Francisco, United States
85% AI deal score
$1,724
$1,150
Save $574
From STL
Elite
Aug 11
San Francisco, United States
85% AI deal score
$1,676
$1,152
Save $524
From STL
Elite
Oct 01
San Francisco, United States
85% AI deal score
$1,778
$1,154
Save $624
From STL
Elite
Aug 22
San Francisco, United States
85% AI deal score
$1,728
$1,169
Save $559
From STL
Elite
Oct 02
San Francisco, United States
85% AI deal score
$1,654
$1,107
Save $547
From STL
Elite
Oct 20
San Francisco, United States
85% AI deal score
$1,338
$869
Save $469
From STL
Elite
Oct 30
San Francisco, United States
85% AI deal score
$1,408
$948
Save $460
From STL
Elite
Jul 28
San Francisco, United States
84% AI deal score
$1,648
$1,130
Save $518
From STL
Elite
Jul 28
San Francisco, United States
84% AI deal score
$1,648
$1,130
Save $518
From STL
Elite
Nov 04
San Francisco, United States
84% AI deal score
$1,643
$1,137
Save $506
From STL
Elite
Jul 22
San Francisco, United States
84% AI deal score
$1,648
$1,143
Save $505
From STL
Elite
Jul 28
San Francisco, United States
84% AI deal score
$1,648
$1,150
Save $498
From STL
Elite
Aug 22
San Francisco, United States
84% AI deal score
$1,662
$1,171
Save $491
From STL
Elite
Dec 09
San Francisco, United States
84% AI deal score
$1,664
$1,154
Save $510
From STL
Elite
Dec 02
San Francisco, United States
84% AI deal score
$1,664
$1,154
Save $510
From STL
Elite
Nov 12
San Francisco, United States
84% AI deal score
$1,554
$1,154
Save $400
From STL
Elite
Aug 08
San Francisco, United States
84% AI deal score
$1,803
$1,180
Save $623
From STL
Elite
Oct 01
San Francisco, United States
84% AI deal score
$1,410
$932
Save $478
From STL
Elite
Oct 06
San Francisco, United States
83% AI deal score
$1,377
$1,067
Save $310
From STL
Elite
Nov 18
San Francisco, United States
83% AI deal score
$1,385
$1,100
Save $285
From STL
Elite
Dec 09
San Francisco, United States
83% AI deal score
$1,622
$1,183
Save $439
From STL
Elite
Dec 02
San Francisco, United States
83% AI deal score
$1,622
$1,183
Save $439
From STL
Elite
Oct 01
San Francisco, United States
83% AI deal score
$1,608
$1,184
Save $424
From STL
Elite
Oct 24
San Francisco, United States
82% AI deal score
$1,380
$1,101
Save $279
From STL
Elite
Oct 03
San Francisco, United States
82% AI deal score
$1,373
$1,101
Save $272
From STL
Elite
Jul 07
San Francisco, United States
82% AI deal score
$1,606
$1,189
Save $417
From STL
Elite
Oct 01
San Francisco, United States
82% AI deal score
$1,359
$972
Save $387
From STL
Elite
Nov 11
San Francisco, United States
78% AI deal score
$1,387
$1,137
Save $250
From STL
Elite
Aug 07
San Francisco, United States
77% AI deal score
$1,687
$1,332
Save $355
From STL
Elite
Nov 04
San Francisco, United States
77% AI deal score
$1,346
$1,137
Save $209
From STL
Elite
Dec 02
San Francisco, United States
77% AI deal score
$1,394
$1,154
Save $240
From STL
Elite
Sep 10
San Francisco, United States
77% AI deal score
$1,461
$1,167
Save $294
From STL
Elite
Jul 11
San Francisco, United States
77% AI deal score
$1,524
$1,186
Save $338
From STL
Elite
Sep 06
San Francisco, United States
77% AI deal score
$1,548
$1,209
Save $339
From STL
Elite
Aug 10
San Francisco, United States
77% AI deal score
$1,200
$886
Save $314
From STL
Elite
Aug 23
San Francisco, United States
77% AI deal score
$1,249
$915
Save $334
From STL
Elite
Sep 06
San Francisco, United States
77% AI deal score
$1,310
$915
Save $395
From STL
Elite
Sep 17
San Francisco, United States
77% AI deal score
$1,318
$932
Save $386
From STL
Elite
Sep 11
San Francisco, United States
77% AI deal score
$1,322
$948
Save $374
From STL
Elite
Jun 23
San Francisco, United States
76% AI deal score
$2,210
$1,722
Save $488
From STL
Elite
Jul 21
San Francisco, United States
76% AI deal score
$1,271
$1,077
Save $194
From STL
Elite
Sep 12
San Francisco, United States
76% AI deal score
$1,292
$1,106
Save $186
From STL
Elite
Nov 17
San Francisco, United States
76% AI deal score
$1,314
$1,155
Save $159
From STL
Elite
Aug 10
San Francisco, United States
76% AI deal score
$1,429
$1,158
Save $271
From STL
Elite
Oct 14
San Francisco, United States
76% AI deal score
$1,367
$1,167
Save $200
From STL
Elite
Oct 20
San Francisco, United States
76% AI deal score
$1,378
$1,167
Save $211
From STL
Elite
Oct 01
San Francisco, United States
76% AI deal score
$1,375
$1,167
Save $208
From STL
Elite
Dec 02
San Francisco, United States
76% AI deal score
$1,382
$1,183
Save $199
From STL
Elite
Aug 20
San Francisco, United States
76% AI deal score
$1,237
$932
Save $305
From STL
Elite
Aug 21
San Francisco, United States
76% AI deal score
$1,247
$948
Save $299
From STL
Elite
Aug 07
San Francisco, United States
76% AI deal score
$1,249
$948
Save $301
From STL
Elite
Aug 10
San Francisco, United States
76% AI deal score
$1,249
$972
Save $277
From STL
Elite
Sep 04
San Francisco, United States
76% AI deal score
$1,311
$988
Save $323
From STL
Elite
Nov 11
San Francisco, United States
75% AI deal score
$1,285
$1,154
Save $131
From STL
Elite
Nov 04
San Francisco, United States
75% AI deal score
$1,277
$1,154
Save $123
From STL
Elite
Nov 11
San Francisco, United States
75% AI deal score
$1,276
$1,154
Save $122
From STL
Elite
Nov 17
San Francisco, United States
75% AI deal score
$1,276
$1,155
Save $121
From STL
Elite
Aug 01
San Francisco, United States
75% AI deal score
$1,234
$1,012
Save $222
From STL
Elite
Aug 04
San Francisco, United States
75% AI deal score
$1,239
$1,012
Save $227
From STL
Elite
Aug 06
San Francisco, United States
75% AI deal score
$1,249
$1,013
Save $236
From STL
Elite
Sep 13
San Francisco, United States
75% AI deal score
$1,316
$1,025
Save $291
From STL
Elite
Sep 03
San Francisco, United States
75% AI deal score
$1,311
$1,042
Save $269
From STL
Elite
Sep 10
San Francisco, United States
75% AI deal score
$1,315
$1,042
Save $273
From STL
Elite
Jun 24
San Francisco, United States
74% AI deal score
$2,038
$1,798
Save $240
From STL
Elite
Sep 15
San Francisco, United States
74% AI deal score
$1,284
$1,177
Save $107
From STL
Elite
Jun 24
San Francisco, United States
74% AI deal score
$1,801
$1,605
Save $196
From STL
Elite
Aug 17
San Francisco, United States
74% AI deal score
$1,237
$1,029
Save $208
From STL
Elite
Aug 21
San Francisco, United States
74% AI deal score
$1,237
$1,029
Save $208
From STL
Elite
Aug 06
San Francisco, United States
74% AI deal score
$1,226
$1,029
Save $197
From STL
Elite
Aug 03
San Francisco, United States
74% AI deal score
$1,232
$1,029
Save $203
From STL
Elite
Aug 27
San Francisco, United States
74% AI deal score
$1,232
$1,042
Save $190
From STL
Elite
Aug 06
San Francisco, United States
74% AI deal score
$1,239
$1,042
Save $197