Flights from San Francisco to Southwest Illinois

Cheapest flights from San Francisco

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Sep 5 - Sun, Sep 7

SFO

San Francisco Intl.

STL

Lambert-St. Louis Intl.

$297 Roundtrip, found 1 day ago

$297

Roundtrip

found 1 day ago

Select American Airlines flight, departing Fri, Sep 5 from San Francisco Intl. to Lambert-St. Louis Intl., returning Sun, Sep 7, priced at $297 found 1 day ago

Fri, Sep 5 - Sun, Sep 7

SFO

San Francisco Intl.

STL

Lambert-St. Louis Intl.

$297 Roundtrip, found 1 day ago

$297

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Sep 5 from San Francisco Intl. to Lambert-St. Louis Intl., returning Sun, Sep 7, priced at $297 found 1 day ago

Wed, Sep 3 - Wed, Sep 10

SFO

San Francisco Intl.

STL

Lambert-St. Louis Intl.

$304 Roundtrip, found 2 days ago

$304

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Wed, Sep 3 from San Francisco Intl. to Lambert-St. Louis Intl., returning Wed, Sep 10, priced at $304 found 2 days ago

Wed, Sep 3 - Thu, Sep 11

SFO

San Francisco Intl.

STL

Lambert-St. Louis Intl.

$315 Roundtrip, found 2 days ago

$315

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Wed, Sep 3 from San Francisco Intl. to Lambert-St. Louis Intl., returning Thu, Sep 11, priced at $315 found 2 days ago

Fri, Sep 5 - Thu, Sep 11

SFO

San Francisco Intl.

STL

Lambert-St. Louis Intl.

$326 Roundtrip, found 2 days ago

$326

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Fri, Sep 5 from San Francisco Intl. to Lambert-St. Louis Intl., returning Thu, Sep 11, priced at $326 found 2 days ago

Fri, Sep 5 - Sun, Sep 7

SFO

San Francisco Intl.

STL

Lambert-St. Louis Intl.

$332 Roundtrip, found 1 day ago

$332

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Sep 5 from San Francisco Intl. to Lambert-St. Louis Intl., returning Sun, Sep 7, priced at $332 found 1 day ago

Fri, Sep 5 - Sun, Sep 7

SFO

San Francisco Intl.

STL

Lambert-St. Louis Intl.

$340 Roundtrip, found 1 day ago

$340

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Fri, Sep 5 from San Francisco Intl. to Lambert-St. Louis Intl., returning Sun, Sep 7, priced at $340 found 1 day ago

Fri, Sep 5 - Sun, Sep 7

SFO

San Francisco Intl.

STL

Lambert-St. Louis Intl.

$342 Roundtrip, found 1 day ago

$342

Roundtrip

found 1 day ago

Select United flight, departing Fri, Sep 5 from San Francisco Intl. to Lambert-St. Louis Intl., returning Sun, Sep 7, priced at $342 found 1 day ago

Fri, Sep 5 - Sun, Sep 7

SFO

San Francisco Intl.

STL

Lambert-St. Louis Intl.

$352 Roundtrip, found 1 day ago

$352

Roundtrip

found 1 day ago

Select United flight, departing Fri, Sep 5 from San Francisco Intl. to Lambert-St. Louis Intl., returning Sun, Sep 7, priced at $352 found 1 day ago

Fri, Sep 5 - Sun, Sep 7

SFO

San Francisco Intl.

STL

Lambert-St. Louis Intl.

$364 Roundtrip, found 1 day ago

$364

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Fri, Sep 5 from San Francisco Intl. to Lambert-St. Louis Intl., returning Sun, Sep 7, priced at $364 found 1 day ago

Fri, Sep 5 - Sun, Sep 7

SFO

San Francisco Intl.

STL

Lambert-St. Louis Intl.

$364 Roundtrip, found 1 day ago

$364

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Sep 5 from San Francisco Intl. to Lambert-St. Louis Intl., returning Sun, Sep 7, priced at $364 found 1 day ago

Fri, Sep 5 - Sun, Sep 7

SFO

San Francisco Intl.

STL

Lambert-St. Louis Intl.

$367 Roundtrip, found 1 day ago

$367

Roundtrip

found 1 day ago

Select American Airlines flight, departing Fri, Sep 5 from San Francisco Intl. to Lambert-St. Louis Intl., returning Sun, Sep 7, priced at $367 found 1 day ago

Fri, Sep 5 - Sun, Sep 7

SFO

San Francisco Intl.

STL

Lambert-St. Louis Intl.

$369 Roundtrip, found 1 day ago

$369

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Fri, Sep 5 from San Francisco Intl. to Lambert-St. Louis Intl., returning Sun, Sep 7, priced at $369 found 1 day ago

Fri, Sep 5 - Sun, Sep 7

SFO

San Francisco Intl.

STL

Lambert-St. Louis Intl.

$370 Roundtrip, found 1 day ago

$370

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Sep 5 from San Francisco Intl. to Lambert-St. Louis Intl., returning Sun, Sep 7, priced at $370 found 1 day ago

Fri, Sep 5 - Sun, Sep 7

SFO

San Francisco Intl.

STL

Lambert-St. Louis Intl.

$372 Roundtrip, found 1 day ago

$372

Roundtrip

found 1 day ago

Select United flight, departing Fri, Sep 5 from San Francisco Intl. to Lambert-St. Louis Intl., returning Sun, Sep 7, priced at $372 found 1 day ago

Fri, Sep 5 - Sun, Sep 7

SFO

San Francisco Intl.

STL

Lambert-St. Louis Intl.

$373 Roundtrip, found 1 day ago

$373

Roundtrip

found 1 day ago

Select American Airlines flight, departing Fri, Sep 5 from San Francisco Intl. to Lambert-St. Louis Intl., returning Sun, Sep 7, priced at $373 found 1 day ago

Fri, Sep 5 - Sun, Sep 7

SFO

San Francisco Intl.

STL

Lambert-St. Louis Intl.

$376 Roundtrip, found 1 day ago

$376

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Sep 5 from San Francisco Intl. to Lambert-St. Louis Intl., returning Sun, Sep 7, priced at $376 found 1 day ago

Fri, Sep 5 - Sun, Sep 7

SFO

San Francisco Intl.

STL

Lambert-St. Louis Intl.

$409 Roundtrip, found 1 day ago

$409

Roundtrip

found 1 day ago

Select United flight, departing Fri, Sep 5 from San Francisco Intl. to Lambert-St. Louis Intl., returning Sun, Sep 7, priced at $409 found 1 day ago

Fri, Sep 5 - Sun, Sep 7

SFO

San Francisco Intl.

STL

Lambert-St. Louis Intl.

$449 Roundtrip, found 1 day ago

$449

Roundtrip

found 1 day ago

Select Delta flight, departing Fri, Sep 5 from San Francisco Intl. to Lambert-St. Louis Intl., returning Sun, Sep 7, priced at $449 found 1 day ago

Fri, Sep 5 - Sun, Sep 7

SFO

San Francisco Intl.

STL

Lambert-St. Louis Intl.

$479 Roundtrip, found 1 day ago

$479

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Fri, Sep 5 from San Francisco Intl. to Lambert-St. Louis Intl., returning Sun, Sep 7, priced at $479 found 1 day ago