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.

Tue, May 20 - Tue, May 27

SNA

John Wayne

SFO

San Francisco Intl.

$57 Roundtrip, found 12 hours ago

$57

Roundtrip

found 12 hours ago

Select Hawaiian Airlines flight, departing Tue, May 20 from John Wayne to San Francisco Intl., returning Tue, May 27, priced at $57 found 12 hours ago

Sat, May 17 - Tue, May 20

ONT

Los Angeles - Ontario Intl.

SFO

San Francisco Intl.

$57 Roundtrip, found 4 days ago

$57

Roundtrip

found 4 days ago

Select United flight, departing Sat, May 17 from Los Angeles - Ontario Intl. to San Francisco Intl., returning Tue, May 20, priced at $57 found 4 days ago

Sun, May 18 - Thu, May 22

ONT

Los Angeles - Ontario Intl.

LAS

Harry Reid Intl.

$68 Roundtrip, found 2 days ago

$68

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sun, May 18 from Los Angeles - Ontario Intl. to Harry Reid Intl., returning Thu, May 22, priced at $68 found 2 days ago

Tue, May 6 - Fri, May 9

SNA

John Wayne

LAS

Harry Reid Intl.

$72 Roundtrip, found 1 day ago

$72

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Tue, May 6 from John Wayne to Harry Reid Intl., returning Fri, May 9, priced at $72 found 1 day ago

Fri, Jul 18 - Sun, Jul 27

ONT

Los Angeles - Ontario Intl.

DEN

Denver Intl.

$106 Roundtrip, found 8 hours ago

$106

Roundtrip

found 8 hours ago

Select Frontier Airlines flight, departing Fri, Jul 18 from Los Angeles - Ontario Intl. to Denver Intl., returning Sun, Jul 27, priced at $106 found 8 hours ago

Tue, Aug 12 - Sat, Aug 16

ONT

Los Angeles - Ontario Intl.

DFW

Dallas-Fort Worth Intl.

$108 Roundtrip, found 4 days ago

$108

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Tue, Aug 12 from Los Angeles - Ontario Intl. to Dallas-Fort Worth Intl., returning Sat, Aug 16, priced at $108 found 4 days ago

Sat, May 3 - Thu, May 8

SNA

John Wayne

PHX

Sky Harbor Intl.

$114 Roundtrip, found 5 days ago

$114

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sat, May 3 from John Wayne to Sky Harbor Intl., returning Thu, May 8, priced at $114 found 5 days ago

Tue, Jun 17 - Sat, Jun 28

ONT

Los Angeles - Ontario Intl.

SEA

Seattle - Tacoma Intl.

$115 Roundtrip, found 2 days ago

$115

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Tue, Jun 17 from Los Angeles - Ontario Intl. to Seattle - Tacoma Intl., returning Sat, Jun 28, priced at $115 found 2 days ago

Tue, Jun 3 - Sat, Jun 7

SNA

John Wayne

SEA

Seattle - Tacoma Intl.

$116 Roundtrip, found 4 days ago

$116

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Tue, Jun 3 from John Wayne to Seattle - Tacoma Intl., returning Sat, Jun 7, priced at $116 found 4 days ago

Tue, May 20 - Sat, May 31

SNA

John Wayne

DEN

Denver Intl.

$152 Roundtrip, found 12 hours ago

$152

Roundtrip

found 12 hours ago

Select Frontier Airlines flight, departing Tue, May 20 from John Wayne to Denver Intl., returning Sat, May 31, priced at $152 found 12 hours ago

Tue, May 27 - Wed, May 28

SNA

John Wayne

EWR

Newark Liberty Intl. Airport

$162 Roundtrip, found 5 days ago

$162

Roundtrip

found 5 days ago

Select Spirit Airlines flight, departing Tue, May 27 from John Wayne to Newark Liberty Intl. Airport, returning Wed, May 28, priced at $162 found 5 days ago

Thu, May 22 - Sun, May 25

SNA

John Wayne

DFW

Dallas-Fort Worth Intl.

$228 Roundtrip, found 6 days ago

$228

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Thu, May 22 from John Wayne to Dallas-Fort Worth Intl., returning Sun, May 25, priced at $228 found 6 days ago

Tue, Sep 9 - Sat, Sep 13

LGB

Long Beach Municipal

DEN

Denver Intl.

$257 Roundtrip, found 4 days ago

$257

Roundtrip

found 4 days ago

Select Delta flight, departing Tue, Sep 9 from Long Beach Municipal to Denver Intl., returning Sat, Sep 13, priced at $257 found 4 days ago

Tue, May 27 - Wed, May 28

ONT

Los Angeles - Ontario Intl.

JFK

John F. Kennedy Intl.

$272 Roundtrip, found 5 days ago

$272

Roundtrip

found 5 days ago

Select JetBlue Airways flight, departing Tue, May 27 from Los Angeles - Ontario Intl. to John F. Kennedy Intl., returning Wed, May 28, priced at $272 found 5 days ago

Tue, Oct 7 - Wed, Oct 8

ONT

Los Angeles - Ontario Intl.

LGA

LaGuardia

$277 Roundtrip, found 3 days ago

$277

Roundtrip

found 3 days ago

Select Delta flight, departing Tue, Oct 7 from Los Angeles - Ontario Intl. to LaGuardia, returning Wed, Oct 8, priced at $277 found 3 days ago

Mon, May 19 - Wed, May 21

SNA

John Wayne

PAE

Seattle Paine Field Intl. Airport

$282 Roundtrip, found 3 days ago

$282

Roundtrip

found 3 days ago

Select Alaska Airlines flight, departing Mon, May 19 from John Wayne to Seattle Paine Field Intl. Airport, returning Wed, May 21, priced at $282 found 3 days ago

Tue, May 27 - Sat, May 31

ONT

Los Angeles - Ontario Intl.

EWR

Newark Liberty Intl. Airport

$287 Roundtrip, found 4 days ago

$287

Roundtrip

found 4 days ago

Select American Airlines flight, departing Tue, May 27 from Los Angeles - Ontario Intl. to Newark Liberty Intl. Airport, returning Sat, May 31, priced at $287 found 4 days ago

Tue, May 27 - Wed, May 28

SNA

John Wayne

LGA

LaGuardia

$294 Roundtrip, found 5 days ago

$294

Roundtrip

found 5 days ago

Select Spirit Airlines flight, departing Tue, May 27 from John Wayne to LaGuardia, returning Wed, May 28, priced at $294 found 5 days ago

Sat, May 24 - Sun, May 25

LGB

Long Beach Municipal

ORD

O'Hare Intl.

$307 Roundtrip, found 6 days ago

$307

Roundtrip

found 6 days ago

Select Delta flight, departing Sat, May 24 from Long Beach Municipal to O'Hare Intl., returning Sun, May 25, priced at $307 found 6 days ago

Fri, May 30 - Tue, Jun 10

ONT

Los Angeles - Ontario Intl.

DAL

Love Field

$307 Roundtrip, found 6 days ago

$307

Roundtrip

found 6 days ago

Select Delta flight, departing Fri, May 30 from Los Angeles - Ontario Intl. to Love Field, returning Tue, Jun 10, priced at $307 found 6 days ago