Flights from Ontario

Cheapest flights from Ontario

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.

Sun, Apr 19 - Thu, Apr 23

SNA

John Wayne

LAS

Harry Reid Intl.

$66 Roundtrip, found 6 days ago

$66

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Sun, Apr 19 from John Wayne to Harry Reid Intl., returning Thu, Apr 23, priced at $66 found 6 days ago

Tue, Apr 7 - Thu, Apr 9

ONT

Los Angeles - Ontario Intl.

LAS

Harry Reid Intl.

$78 Roundtrip, found 4 days ago

$78

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Tue, Apr 7 from Los Angeles - Ontario Intl. to Harry Reid Intl., returning Thu, Apr 9, priced at $78 found 4 days ago

Sat, Apr 18 - Tue, Apr 21

ONT

Los Angeles - Ontario Intl.

DEN

Denver Intl.

$90 Roundtrip, found 1 day ago

$90

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, Apr 18 from Los Angeles - Ontario Intl. to Denver Intl., returning Tue, Apr 21, priced at $90 found 1 day ago

Wed, Apr 15 - Thu, Apr 16

LGB

Long Beach Municipal

PHX

Sky Harbor Intl.

$119 Roundtrip, found 4 days ago

$119

Roundtrip

found 4 days ago

Select Southwest Airlines flight, departing Wed, Apr 15 from Long Beach Municipal to Sky Harbor Intl., returning Thu, Apr 16, priced at $119 found 4 days ago

Thu, Apr 9 - Sat, Apr 18

SNA

John Wayne

DEN

Denver Intl.

$119 Roundtrip, found 3 days ago

$119

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Thu, Apr 9 from John Wayne to Denver Intl., returning Sat, Apr 18, priced at $119 found 3 days ago

Tue, May 12 - Wed, May 20

ONT

Los Angeles - Ontario Intl.

SFO

San Francisco Intl.

$126 Roundtrip, found 1 day ago

$126

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, May 12 from Los Angeles - Ontario Intl. to San Francisco Intl., returning Wed, May 20, priced at $126 found 1 day ago

Wed, Apr 22 - Wed, Apr 22

ONT

Los Angeles - Ontario Intl.

DFW

Dallas-Fort Worth Intl.

$128 Roundtrip, found 4 hours ago

$128

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Wed, Apr 22 from Los Angeles - Ontario Intl. to Dallas-Fort Worth Intl., returning Wed, Apr 22, priced at $128 found 4 hours ago

Thu, Apr 2 - Sat, Apr 18

SNA

John Wayne

PHX

Sky Harbor Intl.

$134 Roundtrip, found 1 day ago

$134

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Apr 2 from John Wayne to Sky Harbor Intl., returning Sat, Apr 18, priced at $134 found 1 day ago

Tue, Apr 21 - Tue, Apr 21

ONT

Los Angeles - Ontario Intl.

PHX

Sky Harbor Intl.

$145 Roundtrip, found 2 hours ago

$145

Roundtrip

found 2 hours ago

Select Frontier Airlines flight, departing Tue, Apr 21 from Los Angeles - Ontario Intl. to Sky Harbor Intl., returning Tue, Apr 21, priced at $145 found 2 hours ago

Fri, Apr 17 - Sat, Apr 18

ONT

Los Angeles - Ontario Intl.

SEA

Seattle - Tacoma Intl.

$150 Roundtrip, found 1 day ago

$150

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Apr 17 from Los Angeles - Ontario Intl. to Seattle - Tacoma Intl., returning Sat, Apr 18, priced at $150 found 1 day ago

Fri, Apr 17 - Tue, May 5

ONT

Los Angeles - Ontario Intl.

ORD

O'Hare Intl.

$170 Roundtrip, found 1 day ago

$170

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Apr 17 from Los Angeles - Ontario Intl. to O'Hare Intl., returning Tue, May 5, priced at $170 found 1 day ago

Thu, May 7 - Sat, May 9

SNA

John Wayne

ORD

O'Hare Intl.

$195 Roundtrip, found 2 days ago

$195

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, May 7 from John Wayne to O'Hare Intl., returning Sat, May 9, priced at $195 found 2 days ago

Tue, Apr 14 - Sat, Apr 18

SNA

John Wayne

SEA

Seattle - Tacoma Intl.

$197 Roundtrip, found 6 days ago

$197

Roundtrip

found 6 days ago

Select Hawaiian Airlines flight, departing Tue, Apr 14 from John Wayne to Seattle - Tacoma Intl., returning Sat, Apr 18, priced at $197 found 6 days ago

Thu, Jun 18 - Tue, Jun 23

LGB

Long Beach Municipal

DEN

Denver Intl.

$217 Roundtrip, found 1 day ago

$217

Roundtrip

found 1 day ago

Select Delta flight, departing Thu, Jun 18 from Long Beach Municipal to Denver Intl., returning Tue, Jun 23, priced at $217 found 1 day ago

Wed, Jun 10 - Sat, Jun 13

SNA

John Wayne

SFO

San Francisco Intl.

$217 Roundtrip, found 3 days ago

$217

Roundtrip

found 3 days ago

Select United flight, departing Wed, Jun 10 from John Wayne to San Francisco Intl., returning Sat, Jun 13, priced at $217 found 3 days ago

Wed, Apr 15 - Sat, Apr 18

LGB

Long Beach Municipal

DAL

Love Field

$218 Roundtrip, found 4 days ago

$218

Roundtrip

found 4 days ago

Select Southwest Airlines flight, departing Wed, Apr 15 from Long Beach Municipal to Love Field, returning Sat, Apr 18, priced at $218 found 4 days ago

Tue, Apr 28 - Wed, Apr 29

ONT

Los Angeles - Ontario Intl.

DAL

Love Field

$245 Roundtrip, found 2 days ago

$245

Roundtrip

found 2 days ago

Select Southwest Airlines flight, departing Tue, Apr 28 from Los Angeles - Ontario Intl. to Love Field, returning Wed, Apr 29, priced at $245 found 2 days ago

Sat, May 9 - Sat, May 16

SNA

John Wayne

EWR

Newark Liberty Intl. Airport

$293 Roundtrip, found 2 days ago

$293

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Sat, May 9 from John Wayne to Newark Liberty Intl. Airport, returning Sat, May 16, priced at $293 found 2 days ago

Wed, Apr 15 - Sat, Apr 18

SNA

John Wayne

DAL

Love Field

$313 Roundtrip, found 4 days ago

$313

Roundtrip

found 4 days ago

Select Southwest Airlines flight, departing Wed, Apr 15 from John Wayne to Love Field, returning Sat, Apr 18, priced at $313 found 4 days ago

Wed, Apr 15 - Sat, Apr 18

LGB

Long Beach Municipal

DFW

Dallas-Fort Worth Intl.

$314 Roundtrip, found 4 days ago

$314

Roundtrip

found 4 days ago

Select Delta flight, departing Wed, Apr 15 from Long Beach Municipal to Dallas-Fort Worth Intl., returning Sat, Apr 18, priced at $314 found 4 days ago