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.

Thu, May 7 - Mon, May 11

SFO

San Francisco

ONT

Ontario

$56 Roundtrip, found 1 hour ago

$56

Roundtrip

found 1 hour ago

Select Frontier Airlines flight, departing Thu, May 7 from San Francisco to Ontario, returning Mon, May 11, priced at $56 found 1 hour ago

Thu, Jun 4 - Tue, Jun 23

SFO

San Francisco

ONT

Ontario

$59 Roundtrip, found 4 hours ago

$59

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Thu, Jun 4 from San Francisco to Ontario, returning Tue, Jun 23, priced at $59 found 4 hours ago

Sat, May 30 - Tue, Jun 9

SFO

San Francisco

ONT

Ontario

$61 Roundtrip, found 2 hours ago

$61

Roundtrip

found 2 hours ago

Select Frontier Airlines flight, departing Sat, May 30 from San Francisco to Ontario, returning Tue, Jun 9, priced at $61 found 2 hours ago

Thu, May 28 - Wed, Jun 3

SFO

San Francisco

ONT

Ontario

$65 Roundtrip, found 2 hours ago

$65

Roundtrip

found 2 hours ago

Select Frontier Airlines flight, departing Thu, May 28 from San Francisco to Ontario, returning Wed, Jun 3, priced at $65 found 2 hours ago

Wed, May 27 - Sat, Jun 6

SFO

San Francisco

ONT

Ontario

$66 Roundtrip, found 2 hours ago

$66

Roundtrip

found 2 hours ago

Select Frontier Airlines flight, departing Wed, May 27 from San Francisco to Ontario, returning Sat, Jun 6, priced at $66 found 2 hours ago

Fri, May 8 - Mon, May 11

SFO

San Francisco

ONT

Ontario

$77 Roundtrip, found 2 hours ago

$77

Roundtrip

found 2 hours ago

Select Frontier Airlines flight, departing Fri, May 8 from San Francisco to Ontario, returning Mon, May 11, priced at $77 found 2 hours ago

Mon, Aug 24 - Mon, Aug 31

SFO

San Francisco

SBD

San Bernardino

$97 Roundtrip, found 2 days ago

$97

Roundtrip

found 2 days ago

Select Breeze Airways flight, departing Mon, Aug 24 from San Francisco to San Bernardino, returning Mon, Aug 31, priced at $97 found 2 days ago

Tue, Jun 9 - Wed, Jun 10

SFO

San Francisco

ONT

Ontario

$137 Roundtrip, found 2 hours ago

$137

Roundtrip

found 2 hours ago

Select United flight, departing Tue, Jun 9 from San Francisco to Ontario, returning Wed, Jun 10, priced at $137 found 2 hours ago

Tue, Jun 9 - Wed, Jun 10

SFO

San Francisco

ONT

Ontario

$157 Roundtrip, found 2 hours ago

$157

Roundtrip

found 2 hours ago

Select Southwest Airlines flight, departing Tue, Jun 9 from San Francisco to Ontario, returning Wed, Jun 10, priced at $157 found 2 hours ago

Tue, Jun 23 - Wed, Jul 1

SFO

San Francisco

PSP

Palm Springs

$177 Roundtrip, found 7 hours ago

$177

Roundtrip

found 7 hours ago

Select Delta flight, departing Tue, Jun 23 from San Francisco to Palm Springs, returning Wed, Jul 1, priced at $177 found 7 hours ago