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, Sep 9 - Thu, Sep 11

ONT

Los Angeles - Ontario Intl.

LAS

Harry Reid Intl.

$58 Roundtrip, found 8 hours ago

$58

Roundtrip

found 8 hours ago

Select Frontier Airlines flight, departing Tue, Sep 9 from Los Angeles - Ontario Intl. to Harry Reid Intl., returning Thu, Sep 11, priced at $58 found 8 hours ago

Sat, Sep 20 - Sat, Sep 20

SNA

John Wayne

LAS

Harry Reid Intl.

$58 Roundtrip, found 16 hours ago

$58

Roundtrip

found 16 hours ago

Select Spirit Airlines flight, departing Sat, Sep 20 from John Wayne to Harry Reid Intl., returning Sat, Sep 20, priced at $58 found 16 hours ago

Thu, Aug 28 - Sun, Aug 31

ONT

Los Angeles - Ontario Intl.

SFO

San Francisco Intl.

$88 Roundtrip, found 1 day ago

$88

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Aug 28 from Los Angeles - Ontario Intl. to San Francisco Intl., returning Sun, Aug 31, priced at $88 found 1 day ago

Sat, Sep 13 - Tue, Sep 16

SNA

John Wayne

DEN

Denver Intl.

$98 Roundtrip, found 1 day ago

$98

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, Sep 13 from John Wayne to Denver Intl., returning Tue, Sep 16, priced at $98 found 1 day ago

Tue, Sep 16 - Wed, Sep 17

ONT

Los Angeles - Ontario Intl.

DEN

Denver Intl.

$108 Roundtrip, found 2 days ago

$108

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Tue, Sep 16 from Los Angeles - Ontario Intl. to Denver Intl., returning Wed, Sep 17, priced at $108 found 2 days ago

Thu, Oct 2 - Sat, Oct 11

ONT

Los Angeles - Ontario Intl.

DFW

Dallas-Fort Worth Intl.

$122 Roundtrip, found 5 days ago

$122

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Thu, Oct 2 from Los Angeles - Ontario Intl. to Dallas-Fort Worth Intl., returning Sat, Oct 11, priced at $122 found 5 days ago

Sat, Sep 6 - Thu, Sep 18

SNA

John Wayne

SLC

Salt Lake City Intl.

$125 Roundtrip, found 7 hours ago

$125

Roundtrip

found 7 hours ago

Select Spirit Airlines flight, departing Sat, Sep 6 from John Wayne to Salt Lake City Intl., returning Thu, Sep 18, priced at $125 found 7 hours ago

Wed, Sep 10 - Tue, Sep 30

SNA

John Wayne

DFW

Dallas-Fort Worth Intl.

$155 Roundtrip, found 4 days ago

$155

Roundtrip

found 4 days ago

Select Spirit Airlines flight, departing Wed, Sep 10 from John Wayne to Dallas-Fort Worth Intl., returning Tue, Sep 30, priced at $155 found 4 days ago

Tue, Nov 4 - Sat, Nov 8

ONT

Los Angeles - Ontario Intl.

SLC

Salt Lake City Intl.

$165 Roundtrip, found 6 days ago

$165

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Tue, Nov 4 from Los Angeles - Ontario Intl. to Salt Lake City Intl., returning Sat, Nov 8, priced at $165 found 6 days ago

Tue, Sep 23 - Sat, Oct 4

ONT

Los Angeles - Ontario Intl.

SEA

Seattle - Tacoma Intl.

$177 Roundtrip, found 8 hours ago

$177

Roundtrip

found 8 hours ago

Select United flight, departing Tue, Sep 23 from Los Angeles - Ontario Intl. to Seattle - Tacoma Intl., returning Sat, Oct 4, priced at $177 found 8 hours ago

Tue, Sep 2 - Sat, Sep 6

ONT

Los Angeles - Ontario Intl.

PHX

Sky Harbor Intl.

$177 Roundtrip, found 4 days ago

$177

Roundtrip

found 4 days ago

Select American Airlines flight, departing Tue, Sep 2 from Los Angeles - Ontario Intl. to Sky Harbor Intl., returning Sat, Sep 6, priced at $177 found 4 days ago

Mon, Oct 6 - Thu, Oct 9

SNA

John Wayne

SFO

San Francisco Intl.

$178 Roundtrip, found 2 days ago

$178

Roundtrip

found 2 days ago

Select United flight, departing Mon, Oct 6 from John Wayne to San Francisco Intl., returning Thu, Oct 9, priced at $178 found 2 days ago

Sat, Aug 30 - Wed, Sep 3

SNA

John Wayne

ORD

O'Hare Intl.

$210 Roundtrip, found 3 days ago

$210

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Sat, Aug 30 from John Wayne to O'Hare Intl., returning Wed, Sep 3, priced at $210 found 3 days ago

Wed, Sep 10 - Mon, Sep 15

SNA

John Wayne

LGA

LaGuardia

$215 Roundtrip, found 2 days ago

$215

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Wed, Sep 10 from John Wayne to LaGuardia, returning Mon, Sep 15, priced at $215 found 2 days ago

Tue, Sep 30 - Sat, Oct 11

SNA

John Wayne

EWR

Newark Liberty Intl. Airport

$257 Roundtrip, found 6 days ago

$257

Roundtrip

found 6 days ago

Select Spirit Airlines flight, departing Tue, Sep 30 from John Wayne to Newark Liberty Intl. Airport, returning Sat, Oct 11, priced at $257 found 6 days ago

Wed, Sep 10 - Mon, Sep 15

SNA

John Wayne

JFK

John F. Kennedy Intl.

$267 Roundtrip, found 2 days ago

$267

Roundtrip

found 2 days ago

Select Alaska Airlines flight, departing Wed, Sep 10 from John Wayne to John F. Kennedy Intl., returning Mon, Sep 15, priced at $267 found 2 days ago

Tue, Oct 7 - Tue, Oct 14

ONT

Los Angeles - Ontario Intl.

EWR

Newark Liberty Intl. Airport

$277 Roundtrip, found 2 days ago

$277

Roundtrip

found 2 days ago

Select Delta flight, departing Tue, Oct 7 from Los Angeles - Ontario Intl. to Newark Liberty Intl. Airport, returning Tue, Oct 14, priced at $277 found 2 days ago

Sun, Oct 5 - Wed, Oct 22

ONT

Los Angeles - Ontario Intl.

JFK

John F. Kennedy Intl.

$277 Roundtrip, found 1 day ago

$277

Roundtrip

found 1 day ago

Select JetBlue Airways flight, departing Sun, Oct 5 from Los Angeles - Ontario Intl. to John F. Kennedy Intl., returning Wed, Oct 22, priced at $277 found 1 day ago

Sun, Aug 31 - Wed, Sep 3

ONT

Los Angeles - Ontario Intl.

ORD

O'Hare Intl.

$330 Roundtrip, found 5 days ago

$330

Roundtrip

found 5 days ago

Select Delta flight, departing Sun, Aug 31 from Los Angeles - Ontario Intl. to O'Hare Intl., returning Wed, Sep 3, priced at $330 found 5 days ago

Mon, Dec 15 - Tue, Dec 16

LGB

Long Beach Municipal

LAS

Harry Reid Intl.

$361 Roundtrip, found 13 hours ago

$361

Roundtrip

found 13 hours ago

Select Delta flight, departing Mon, Dec 15 from Long Beach Municipal to Harry Reid Intl., returning Tue, Dec 16, priced at $361 found 13 hours ago