Flights from Riverside to St. Louis

Cheapest flights from Riverside

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.

Wed, Aug 6 - Sat, Aug 9

ONT

Los Angeles - Ontario Intl.

STL

Lambert-St. Louis Intl.

$228 Roundtrip, found 3 days ago

$228

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Wed, Aug 6 from Los Angeles - Ontario Intl. to Lambert-St. Louis Intl., returning Sat, Aug 9, priced at $228 found 3 days ago

Wed, Aug 6 - Fri, Aug 8

ONT

Los Angeles - Ontario Intl.

STL

Lambert-St. Louis Intl.

$238 Roundtrip, found 3 days ago

$238

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Wed, Aug 6 from Los Angeles - Ontario Intl. to Lambert-St. Louis Intl., returning Fri, Aug 8, priced at $238 found 3 days ago

Fri, Aug 8 - Fri, Aug 8

ONT

Los Angeles - Ontario Intl.

STL

Lambert-St. Louis Intl.

$248 Roundtrip, found 3 days ago

$248

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Aug 8 from Los Angeles - Ontario Intl. to Lambert-St. Louis Intl., returning Fri, Aug 8, priced at $248 found 3 days ago

Tue, Oct 21 - Sat, Oct 25

ONT

Los Angeles - Ontario Intl.

STL

Lambert-St. Louis Intl.

$253 Roundtrip, found 3 days ago

$253

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Tue, Oct 21 from Los Angeles - Ontario Intl. to Lambert-St. Louis Intl., returning Sat, Oct 25, priced at $253 found 3 days ago

Wed, Aug 6 - Thu, Aug 14

ONT

Los Angeles - Ontario Intl.

STL

Lambert-St. Louis Intl.

$278 Roundtrip, found 3 days ago

$278

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Wed, Aug 6 from Los Angeles - Ontario Intl. to Lambert-St. Louis Intl., returning Thu, Aug 14, priced at $278 found 3 days ago

Tue, Oct 21 - Sat, Oct 25

ONT

Los Angeles - Ontario Intl.

STL

Lambert-St. Louis Intl.

$279 Roundtrip, found 3 days ago

$279

Roundtrip

found 3 days ago

Select United flight, departing Tue, Oct 21 from Los Angeles - Ontario Intl. to Lambert-St. Louis Intl., returning Sat, Oct 25, priced at $279 found 3 days ago

Tue, Oct 21 - Sat, Oct 25

ONT

Los Angeles - Ontario Intl.

STL

Lambert-St. Louis Intl.

$279 Roundtrip, found 3 days ago

$279

Roundtrip

found 3 days ago

Select Delta flight, departing Tue, Oct 21 from Los Angeles - Ontario Intl. to Lambert-St. Louis Intl., returning Sat, Oct 25, priced at $279 found 3 days ago

Tue, Oct 21 - Sat, Oct 25

ONT

Los Angeles - Ontario Intl.

STL

Lambert-St. Louis Intl.

$279 Roundtrip, found 3 days ago

$279

Roundtrip

found 3 days ago

Select American Airlines flight, departing Tue, Oct 21 from Los Angeles - Ontario Intl. to Lambert-St. Louis Intl., returning Sat, Oct 25, priced at $279 found 3 days ago

Tue, Oct 21 - Sat, Oct 25

ONT

Los Angeles - Ontario Intl.

STL

Lambert-St. Louis Intl.

$284 Roundtrip, found 3 days ago

$284

Roundtrip

found 3 days ago

Select American Airlines flight, departing Tue, Oct 21 from Los Angeles - Ontario Intl. to Lambert-St. Louis Intl., returning Sat, Oct 25, priced at $284 found 3 days ago

Tue, Oct 21 - Sat, Oct 25

ONT

Los Angeles - Ontario Intl.

STL

Lambert-St. Louis Intl.

$284 Roundtrip, found 3 days ago

$284

Roundtrip

found 3 days ago

Select United flight, departing Tue, Oct 21 from Los Angeles - Ontario Intl. to Lambert-St. Louis Intl., returning Sat, Oct 25, priced at $284 found 3 days ago

Mon, Aug 11 - Thu, Aug 14

ONT

Los Angeles - Ontario Intl.

STL

Lambert-St. Louis Intl.

$288 Roundtrip, found 3 days ago

$288

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Mon, Aug 11 from Los Angeles - Ontario Intl. to Lambert-St. Louis Intl., returning Thu, Aug 14, priced at $288 found 3 days ago

Tue, Oct 21 - Sat, Oct 25

ONT

Los Angeles - Ontario Intl.

STL

Lambert-St. Louis Intl.

$291 Roundtrip, found 3 days ago

$291

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Tue, Oct 21 from Los Angeles - Ontario Intl. to Lambert-St. Louis Intl., returning Sat, Oct 25, priced at $291 found 3 days ago

Tue, Oct 21 - Sat, Oct 25

ONT

Los Angeles - Ontario Intl.

STL

Lambert-St. Louis Intl.

$298 Roundtrip, found 3 days ago

$298

Roundtrip

found 3 days ago

Select Alaska Airlines flight, departing Tue, Oct 21 from Los Angeles - Ontario Intl. to Lambert-St. Louis Intl., returning Sat, Oct 25, priced at $298 found 3 days ago

Tue, Oct 21 - Sat, Oct 25

ONT

Los Angeles - Ontario Intl.

STL

Lambert-St. Louis Intl.

$301 Roundtrip, found 3 days ago

$301

Roundtrip

found 3 days ago

Select United flight, departing Tue, Oct 21 from Los Angeles - Ontario Intl. to Lambert-St. Louis Intl., returning Sat, Oct 25, priced at $301 found 3 days ago

Tue, Oct 21 - Sat, Oct 25

ONT

Los Angeles - Ontario Intl.

STL

Lambert-St. Louis Intl.

$309 Roundtrip, found 3 days ago

$309

Roundtrip

found 3 days ago

Select American Airlines flight, departing Tue, Oct 21 from Los Angeles - Ontario Intl. to Lambert-St. Louis Intl., returning Sat, Oct 25, priced at $309 found 3 days ago

Tue, Oct 21 - Sat, Oct 25

ONT

Los Angeles - Ontario Intl.

STL

Lambert-St. Louis Intl.

$314 Roundtrip, found 3 days ago

$314

Roundtrip

found 3 days ago

Select United flight, departing Tue, Oct 21 from Los Angeles - Ontario Intl. to Lambert-St. Louis Intl., returning Sat, Oct 25, priced at $314 found 3 days ago

Tue, Oct 21 - Sat, Oct 25

ONT

Los Angeles - Ontario Intl.

STL

Lambert-St. Louis Intl.

$315 Roundtrip, found 3 days ago

$315

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Tue, Oct 21 from Los Angeles - Ontario Intl. to Lambert-St. Louis Intl., returning Sat, Oct 25, priced at $315 found 3 days ago

Tue, Oct 21 - Sat, Oct 25

ONT

Los Angeles - Ontario Intl.

STL

Lambert-St. Louis Intl.

$324 Roundtrip, found 3 days ago

$324

Roundtrip

found 3 days ago

Select Alaska Airlines flight, departing Tue, Oct 21 from Los Angeles - Ontario Intl. to Lambert-St. Louis Intl., returning Sat, Oct 25, priced at $324 found 3 days ago

Thu, Aug 14 - Sun, Aug 17

SNA

John Wayne

STL

Lambert-St. Louis Intl.

$491 Roundtrip, found 4 days ago

$491

Roundtrip

found 4 days ago

Select American Airlines flight, departing Thu, Aug 14 from John Wayne to Lambert-St. Louis Intl., returning Sun, Aug 17, priced at $491 found 4 days ago

Thu, Aug 14 - Sun, Aug 17

LGB

Long Beach Municipal

STL

Lambert-St. Louis Intl.

$551 Roundtrip, found 4 days ago

$551

Roundtrip

found 4 days ago

Select Delta flight, departing Thu, Aug 14 from Long Beach Municipal to Lambert-St. Louis Intl., returning Sun, Aug 17, priced at $551 found 4 days ago