Cheap Flights to Riverside County from $28

How much is the cheapest flight to Riverside County?

Prices were available within the past 7 days and start at $28 for one-way flights and $56 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jun 9 - Wed, Jun 10

DEN

Denver

ONT

Ontario

$56 Roundtrip, found 7 hours ago

$56

Roundtrip

found 7 hours ago

Select Frontier Airlines flight, departing Tue, Jun 9 from Denver to Ontario, returning Wed, Jun 10, priced at $56 found 7 hours ago

Thu, May 7 - Sat, May 9

DEN

Denver

SNA

Orange County

$56 Roundtrip, found 4 hours ago

$56

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Thu, May 7 from Denver to Orange County, returning Sat, May 9, priced at $56 found 4 hours ago

Sun, May 10 - Sat, May 16

DEN

Denver

SNA

Orange County

$61 Roundtrip, found 12 hours ago

$61

Roundtrip

found 12 hours ago

Select Frontier Airlines flight, departing Sun, May 10 from Denver to Orange County, returning Sat, May 16, priced at $61 found 12 hours ago

Sat, May 16 - Wed, May 20

DEN

Denver

ONT

Ontario

$62 Roundtrip, found 1 hour ago

$62

Roundtrip

found 1 hour ago

Select Frontier Airlines flight, departing Sat, May 16 from Denver to Ontario, returning Wed, May 20, priced at $62 found 1 hour ago

Tue, Jun 9 - Wed, Jun 10

DEN

Denver

ONT

Ontario

$66 Roundtrip, found 7 hours ago

$66

Roundtrip

found 7 hours ago

Select Frontier Airlines flight, departing Tue, Jun 9 from Denver to Ontario, returning Wed, Jun 10, priced at $66 found 7 hours ago

Sat, May 16 - Wed, May 20

DEN

Denver

ONT

Ontario

$67 Roundtrip, just found

$67

Roundtrip

just found

Select Frontier Airlines flight, departing Sat, May 16 from Denver to Ontario, returning Wed, May 20, priced at $67 just found

Wed, May 27 - Tue, Jun 2

DEN

Denver

ONT

Ontario

$169 Roundtrip, found 2 hours ago

$169

Roundtrip

found 2 hours ago

Select United flight, departing Wed, May 27 from Denver to Ontario, returning Tue, Jun 2, priced at $169 found 2 hours ago

Wed, May 27 - Tue, Jun 2

DEN

Denver

ONT

Ontario

$169 Roundtrip, found 2 hours ago

$169

Roundtrip

found 2 hours ago

Select Southwest Airlines flight, departing Wed, May 27 from Denver to Ontario, returning Tue, Jun 2, priced at $169 found 2 hours ago

Tue, Sep 1 - Wed, Sep 2

DEN

Denver

LGB

Long Beach

$195 Roundtrip, found 1 day ago

$195

Roundtrip

found 1 day ago

Select Delta flight, departing Tue, Sep 1 from Denver to Long Beach, returning Wed, Sep 2, priced at $195 found 1 day ago

Tue, Aug 25 - Tue, Sep 1

ORD

Chicago

ONT

Ontario

$219 Roundtrip, found 9 hours ago

$219

Roundtrip

found 9 hours ago

Select American Airlines flight, departing Tue, Aug 25 from Chicago to Ontario, returning Tue, Sep 1, priced at $219 found 9 hours ago