Flights from Riverside

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, Jul 29 - Tue, Aug 4

ONT

Ontario Intl. Airport

DEN

Denver Intl.

$98 Roundtrip, found 3 hours ago

$98

Roundtrip

found 3 hours ago

Select Frontier Airlines flight, departing Wed, Jul 29 from Ontario Intl. Airport to Denver Intl., returning Tue, Aug 4, priced at $98 found 3 hours ago

Wed, Sep 9 - Thu, Sep 10

ONT

Ontario Intl. Airport

DEN

Denver Intl.

$111 Roundtrip, found 4 hours ago

$111

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Wed, Sep 9 from Ontario Intl. Airport to Denver Intl., returning Thu, Sep 10, priced at $111 found 4 hours ago

Fri, Sep 18 - Mon, Sep 21

SNA

John Wayne

DEN

Denver Intl.

$148 Roundtrip, found 1 day ago

$148

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Sep 18 from John Wayne to Denver Intl., returning Mon, Sep 21, priced at $148 found 1 day ago

Wed, Sep 9 - Tue, Sep 15

ONT

Ontario Intl. Airport

DEN

Denver Intl.

$177 Roundtrip, found 5 hours ago

$177

Roundtrip

found 5 hours ago

Select Southwest Airlines flight, departing Wed, Sep 9 from Ontario Intl. Airport to Denver Intl., returning Tue, Sep 15, priced at $177 found 5 hours ago

Wed, Sep 9 - Tue, Sep 15

ONT

Ontario Intl. Airport

DEN

Denver Intl.

$177 Roundtrip, found 5 hours ago

$177

Roundtrip

found 5 hours ago

Select United flight, departing Wed, Sep 9 from Ontario Intl. Airport to Denver Intl., returning Tue, Sep 15, priced at $177 found 5 hours ago

Wed, Sep 9 - Tue, Sep 15

ONT

Ontario Intl. Airport

DEN

Denver Intl.

$197 Roundtrip, found 5 hours ago

$197

Roundtrip

found 5 hours ago

Select Delta flight, departing Wed, Sep 9 from Ontario Intl. Airport to Denver Intl., returning Tue, Sep 15, priced at $197 found 5 hours ago

Thu, Sep 10 - Tue, Sep 15

LGB

Long Beach Municipal

DEN

Denver Intl.

$201 Roundtrip, found 2 hours ago

$201

Roundtrip

found 2 hours ago

Select Southwest Airlines flight, departing Thu, Sep 10 from Long Beach Municipal to Denver Intl., returning Tue, Sep 15, priced at $201 found 2 hours ago

Tue, Sep 1 - Tue, Sep 8

PSP

Palm Springs Intl.

PDX

Portland Intl.

$207 Roundtrip, found 5 hours ago

$207

Roundtrip

found 5 hours ago

Select United flight, departing Tue, Sep 1 from Palm Springs Intl. to Portland Intl., returning Tue, Sep 8, priced at $207 found 5 hours ago

Tue, Sep 1 - Tue, Sep 8

PSP

Palm Springs Intl.

PDX

Portland Intl.

$217 Roundtrip, found 5 hours ago

$217

Roundtrip

found 5 hours ago

Select Alaska Airlines flight, departing Tue, Sep 1 from Palm Springs Intl. to Portland Intl., returning Tue, Sep 8, priced at $217 found 5 hours ago

Wed, Oct 7 - Tue, Oct 20

ONT

Ontario Intl. Airport

PDX

Portland Intl.

$220 Roundtrip, found 1 hour ago

$220

Roundtrip

found 1 hour ago

Select Frontier Airlines flight, departing Wed, Oct 7 from Ontario Intl. Airport to Portland Intl., returning Tue, Oct 20, priced at $220 found 1 hour ago

Wed, Aug 5 - Tue, Aug 25

ONT

Ontario Intl. Airport

SAT

San Antonio Intl.

$220 Roundtrip, found 1 day ago

$220

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Aug 5 from Ontario Intl. Airport to San Antonio Intl., returning Tue, Aug 25, priced at $220 found 1 day ago

Wed, Aug 5 - Tue, Aug 25

ONT

Ontario Intl. Airport

DFW

Dallas-Fort Worth Intl.

$220 Roundtrip, found 7 hours ago

$220

Roundtrip

found 7 hours ago

Select Frontier Airlines flight, departing Wed, Aug 5 from Ontario Intl. Airport to Dallas-Fort Worth Intl., returning Tue, Aug 25, priced at $220 found 7 hours ago

Tue, Sep 1 - Wed, Sep 2

PSP

Palm Springs Intl.

PDX

Portland Intl.

$242 Roundtrip, found 3 days ago

$242

Roundtrip

found 3 days ago

Select American Airlines flight, departing Tue, Sep 1 from Palm Springs Intl. to Portland Intl., returning Wed, Sep 2, priced at $242 found 3 days ago

Thu, Aug 6 - Sat, Aug 15

ONT

Ontario Intl. Airport

MCO

Orlando Intl.

$252 Roundtrip, found 17 hours ago

$252

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Thu, Aug 6 from Ontario Intl. Airport to Orlando Intl., returning Sat, Aug 15, priced at $252 found 17 hours ago

Sat, Aug 22 - Mon, Aug 24

LGB

Long Beach Municipal

DFW

Dallas-Fort Worth Intl.

$264 Roundtrip, found 1 day ago

$264

Roundtrip

found 1 day ago

Select Delta flight, departing Sat, Aug 22 from Long Beach Municipal to Dallas-Fort Worth Intl., returning Mon, Aug 24, priced at $264 found 1 day ago

Sat, Aug 22 - Mon, Aug 24

LGB

Long Beach Municipal

DAL

Love Field

$264 Roundtrip, found 1 day ago

$264

Roundtrip

found 1 day ago

Select Southwest Airlines flight, departing Sat, Aug 22 from Long Beach Municipal to Love Field, returning Mon, Aug 24, priced at $264 found 1 day ago

Wed, Jul 22 - Tue, Jul 28

PSP

Palm Springs Intl.

DEN

Denver Intl.

$297 Roundtrip, found 11 hours ago

$297

Roundtrip

found 11 hours ago

Select United flight, departing Wed, Jul 22 from Palm Springs Intl. to Denver Intl., returning Tue, Jul 28, priced at $297 found 11 hours ago

Fri, Jul 24 - Sun, Jul 26

SNA

John Wayne

DFW

Dallas-Fort Worth Intl.

$319 Roundtrip, found 1 day ago

$319

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Jul 24 from John Wayne to Dallas-Fort Worth Intl., returning Sun, Jul 26, priced at $319 found 1 day ago

Sat, Aug 8 - Sat, Aug 22

ONT

Ontario Intl. Airport

DAL

Love Field

$333 Roundtrip, found 3 hours ago

$333

Roundtrip

found 3 hours ago

Select Southwest Airlines flight, departing Sat, Aug 8 from Ontario Intl. Airport to Love Field, returning Sat, Aug 22, priced at $333 found 3 hours ago

Fri, Jul 24 - Sun, Jul 26

SNA

John Wayne

DAL

Love Field

$439 Roundtrip, found 1 day ago

$439

Roundtrip

found 1 day ago

Select Southwest Airlines flight, departing Fri, Jul 24 from John Wayne to Love Field, returning Sun, Jul 26, priced at $439 found 1 day ago