Photo by Southernmost Illinois Tourism Bureau

Popular airlines from San Francisco to Southwest Illinois
American Airlines
United
Southwest Airlines
Delta
Frontier Airlines
JetBlue Airways
Alaska Airlines
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Cheap Flights from San Francisco to Southwest Illinois (SJC-STL)
Prices were available within the past 7 days and start at $114 for one-way flights and $228 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Aug 13 - Sat, Aug 16
SFO
San Francisco
STL
St. Louis
$228 Roundtrip, found 1 hour ago
$228
Roundtrip
found 1 hour ago

Thu, Aug 28 - Sat, Sep 6
SJC
San Jose
STL
St. Louis
$248 Roundtrip, found 7 hours ago
$248
Roundtrip
found 7 hours ago

Tue, Aug 26 - Wed, Sep 3
SFO
San Francisco
STL
St. Louis
$277 Roundtrip, found 3 days ago
$277
Roundtrip
found 3 days ago

Wed, Sep 10 - Tue, Sep 23
OAK
Oakland
STL
St. Louis
$279 Roundtrip, found 4 days ago
$279
Roundtrip
found 4 days ago

Mon, Sep 15 - Wed, Sep 17
OAK
Oakland
STL
St. Louis
$293 Roundtrip, found 5 days ago
$293
Roundtrip
found 5 days ago

Tue, Oct 21 - Tue, Oct 28
SFO
San Francisco
STL
St. Louis
$293 Roundtrip, found 3 days ago
$293
Roundtrip
found 3 days ago
Alternative airports
Prices were available within the past 7 days. Prices and availability are subject to change.
Select flight to Lambert-St. Louis Intl. STL. Cheapest option available. Flights from $360
STL
Lambert-St. Louis Intl.
Cheapest
Select flight to Barkley Regional PAH. Flights from $744
PAH
Barkley Regional
Select flight to Williamson County Regional MWA. Flights from $534
MWA
Williamson County Regional
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