Flight Routes from St. Louis to San Francisco

Trip type

Our cheapest offers for flights from St. Louis to San Francisco

Here you can compare cheap flights from St. Louis (STL) to San Francisco (SFO) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to San Francisco. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
St. Louis
San Francisco
Outbound
06/25/26
1 Stopover (SEA)
AS0473, AS0655
10h 06min
Return
06/30/26
1 Stopover (PDX)
AS1410, AS1635
07h 13min
Alaska Airlines ?
$446
Best option
St. Louis
San Francisco
Outbound
06/25/26
1 Stopover (PDX)
AS1538, AS2112
08h 03min
Return
06/30/26
1 Stopover (PDX)
AS1410, AS1635
07h 13min
Alaska Airlines ?
$463
St. Louis
San Francisco
Outbound
06/25/26
1 Stopover (SEA)
AS0473, AS0655
10h 06min
Return
06/30/26
1 Stopover (PDX)
AS1410, AS1635
07h 13min
Alaska Airlines
$451
St. Louis
San Francisco
Outbound
06/25/26
2 Stopovers (DFW, DEN)
F91523, F92631, F93439
15h 31min
Return
06/30/26
1 Stopover (LAS)
F94158, F93108
25h 29min
Frontier Airlines ?
$592
St. Louis
San Francisco
Outbound
06/25/26
1 Stopover (SEA)
AS0473, AS0655
10h 06min
Return
06/30/26
1 Stopover (PDX)
AS1410, AS1635
07h 13min
Alaska Airlines ?
$769
St. Louis
San Francisco
Outbound
06/25/26
1 Stopover (SLC)
DL1492, DL1091
06h 53min
Return
06/30/26
1 Stopover (MSP)
DL2789, DL3188
08h 50min
Delta Air Lines ?
$3,023
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from St. Louis to San Francisco

Favorite airline: Frontier Airlines
The favorite airline for flights from St. Louis to San Francisco is Frontier Airlines.
Frontier Airlines
36 %
Sun Country Airlines
24 %
Delta
16 %
Favourite connection: via Las Vegas
When booking flights from St. Louis to San Francisco 48 % of travelers prefer to fly via Las Vegas.
Route
bookings
1 stopover Las Vegas - McCarran International Airport, NV
27h 11min, from $158
48 %
1 stopover Minneapolis - St. Paul International Airport, MN
15h 52min, from $249
33 %
1 stopover Seattle-Tacoma International Airport, WA
08h 34min, from $347
14 %

Important flight information

Flight information: St. Louis - San Francisco

Roundtrip from $445.40
Flight duration min. 04:35 / max. 07:20
Return flight duration min. 03:45/ max. 06:35
Distance 2789 km
Flights per week 22
Departure airport Airport St. Louis - Lambert International Airport (STL)
Arrival airport Airport San Francisco International Airport, CA (SFO)
Destination country Flights to United States
Alternative flights to San Francisco
Flight destinations with a similar price