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	Baggage	Price
Best option St. Louis San Francisco	Outbound 06/03/26 1 Stopover (SEA) AS0618, AS1438 08h 02min	Return 06/10/26 1 Stopover (PDX) AS1410, AS1635 07h 33min	Alaska Airlines	?	$403
St. Louis San Francisco	Outbound 06/03/26 1 Stopover (SEA) AS0618, AS1438 08h 02min	Return 06/10/26 1 Stopover (PDX) AS1410, AS1635 07h 33min	Alaska Airlines		$422
St. Louis San Francisco	Outbound 06/03/26 1 Stopover (SEA) AS0618, AS1438 08h 02min	Return 06/10/26 1 Stopover (PDX) AS1410, AS1635 07h 33min	Alaska Airlines	?	$427
St. Louis San Francisco	Outbound 06/03/26 1 Stopover (PDX) AS0337, AS0526 16h 41min	Return 06/10/26 1 Stopover (PDX) AS1410, AS1635 07h 33min	Alaska Airlines	?	$436
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
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 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 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 06/03/26 1 Stopover (ORD) AA2324, AA2550 07h 54min	Return 06/10/26 1 Stopover (PDX) AS1410, AS1635 07h 33min	American Airlines	?	$685
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

Tips and tricks to help you find cheap flights from St. Louis to San Francisco

Important flight information

Flight information: St. Louis - San Francisco

Roundtrip from	402,39 $
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

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