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.

Sat, May 2 - Tue, May 5

DEN

Denver

ONT

Ontario

$56 Roundtrip, found 7 hours ago

$56

Roundtrip

found 7 hours ago

Select Frontier Airlines flight, departing Sat, May 2 from Denver to Ontario, returning Tue, May 5, priced at $56 found 7 hours ago

Sat, May 2 - Tue, May 5

DEN

Denver

ONT

Ontario

$66 Roundtrip, found 7 hours ago

$66

Roundtrip

found 7 hours ago

Select Frontier Airlines flight, departing Sat, May 2 from Denver to Ontario, returning Tue, May 5, priced at $66 found 7 hours ago

Wed, Apr 29 - Tue, May 5

DEN

Denver

ONT

Ontario

$70 Roundtrip, just found

$70

Roundtrip

just found

Select Frontier Airlines flight, departing Wed, Apr 29 from Denver to Ontario, returning Tue, May 5, priced at $70 just found

Thu, May 7 - Sat, May 16

DEN

Denver

SNA

Orange County

$72 Roundtrip, just found

$72

Roundtrip

just found

Select Frontier Airlines flight, departing Thu, May 7 from Denver to Orange County, returning Sat, May 16, priced at $72 just found

Tue, May 5 - Wed, May 6

DEN

Denver

ONT

Ontario

$75 Roundtrip, found 11 hours ago

$75

Roundtrip

found 11 hours ago

Select Frontier Airlines flight, departing Tue, May 5 from Denver to Ontario, returning Wed, May 6, priced at $75 found 11 hours ago

Sat, Apr 18 - Sat, Apr 25

DEN

Denver

ONT

Ontario

$76 Roundtrip, found 6 hours ago

$76

Roundtrip

found 6 hours ago

Select Frontier Airlines flight, departing Sat, Apr 18 from Denver to Ontario, returning Sat, Apr 25, priced at $76 found 6 hours ago

Tue, Apr 14 - Sat, Apr 18

DEN

Denver

LGB

Long Beach

$143 Roundtrip, found 4 days ago

$143

Roundtrip

found 4 days ago

Select Southwest Airlines flight, departing Tue, Apr 14 from Denver to Long Beach, returning Sat, Apr 18, priced at $143 found 4 days ago

Sat, May 16 - Sat, May 16

DEN

Denver

SNA

Orange County

$157 Roundtrip, found 5 hours ago

$157

Roundtrip

found 5 hours ago

Select United flight, departing Sat, May 16 from Denver to Orange County, returning Sat, May 16, priced at $157 found 5 hours ago

Sun, Apr 19 - Thu, Apr 23

DEN

Denver

CLD

Carlsbad

$159 Roundtrip, just found

$159

Roundtrip

just found

Select American Airlines flight, departing Sun, Apr 19 from Denver to Carlsbad, returning Thu, Apr 23, priced at $159 just found

Tue, May 12 - Tue, May 19

DEN

Denver

SNA

Orange County

$177 Roundtrip, found 23 hours ago

$177

Roundtrip

found 23 hours ago

Select Alaska Airlines flight, departing Tue, May 12 from Denver to Orange County, returning Tue, May 19, priced at $177 found 23 hours ago