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.

Thu, Feb 5 - Thu, Feb 5

ONT

Los Angeles - Ontario Intl.

LAS

Harry Reid Intl.

$63 Roundtrip, found 3 hours ago

$63

Roundtrip

found 3 hours ago

Select Frontier Airlines flight, departing Thu, Feb 5 from Los Angeles - Ontario Intl. to Harry Reid Intl., returning Thu, Feb 5, priced at $63 found 3 hours ago

Mon, Dec 8 - Sun, Dec 14

ONT

Los Angeles - Ontario Intl.

SFO

San Francisco Intl.

$72 Roundtrip, found 5 days ago

$72

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Mon, Dec 8 from Los Angeles - Ontario Intl. to San Francisco Intl., returning Sun, Dec 14, priced at $72 found 5 days ago

Sun, Dec 14 - Fri, Jan 2

ONT

Los Angeles - Ontario Intl.

SEA

Seattle - Tacoma Intl.

$78 Roundtrip, found 3 days ago

$78

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sun, Dec 14 from Los Angeles - Ontario Intl. to Seattle - Tacoma Intl., returning Fri, Jan 2, priced at $78 found 3 days ago

Fri, Apr 17 - Sun, Apr 19

SNA

John Wayne

LAS

Harry Reid Intl.

$122 Roundtrip, found 3 days ago

$122

Roundtrip

found 3 days ago

Select Breeze Airways flight, departing Fri, Apr 17 from John Wayne to Harry Reid Intl., returning Sun, Apr 19, priced at $122 found 3 days ago

Tue, Dec 2 - Tue, Dec 9

ONT

Los Angeles - Ontario Intl.

DFW

Dallas-Fort Worth Intl.

$134 Roundtrip, found 6 hours ago

$134

Roundtrip

found 6 hours ago

Select Frontier Airlines flight, departing Tue, Dec 2 from Los Angeles - Ontario Intl. to Dallas-Fort Worth Intl., returning Tue, Dec 9, priced at $134 found 6 hours ago

Tue, Dec 2 - Fri, Dec 5

ONT

Los Angeles - Ontario Intl.

DEN

Denver Intl.

$171 Roundtrip, found 3 days ago

$171

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Tue, Dec 2 from Los Angeles - Ontario Intl. to Denver Intl., returning Fri, Dec 5, priced at $171 found 3 days ago

Tue, Dec 2 - Wed, Dec 3

ONT

Los Angeles - Ontario Intl.

PHX

Sky Harbor Intl.

$172 Roundtrip, found 2 days ago

$172

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Tue, Dec 2 from Los Angeles - Ontario Intl. to Sky Harbor Intl., returning Wed, Dec 3, priced at $172 found 2 days ago

Tue, Jan 13 - Thu, Jan 15

ONT

Los Angeles - Ontario Intl.

JFK

John F. Kennedy Intl.

$192 Roundtrip, found 2 days ago

$192

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Tue, Jan 13 from Los Angeles - Ontario Intl. to John F. Kennedy Intl., returning Thu, Jan 15, priced at $192 found 2 days ago

Thu, Jan 8 - Sat, Jan 10

ONT

Los Angeles - Ontario Intl.

LGA

LaGuardia

$213 Roundtrip, found 1 day ago

$213

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Jan 8 from Los Angeles - Ontario Intl. to LaGuardia, returning Sat, Jan 10, priced at $213 found 1 day ago

Fri, Dec 26 - Tue, Dec 30

SNA

John Wayne

SLC

Salt Lake City Intl.

$242 Roundtrip, found 8 hours ago

$242

Roundtrip

found 8 hours ago

Select Frontier Airlines flight, departing Fri, Dec 26 from John Wayne to Salt Lake City Intl., returning Tue, Dec 30, priced at $242 found 8 hours ago

Sat, Nov 29 - Tue, Dec 2

SNA

John Wayne

PHX

Sky Harbor Intl.

$256 Roundtrip, found 4 days ago

$256

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Sat, Nov 29 from John Wayne to Sky Harbor Intl., returning Tue, Dec 2, priced at $256 found 4 days ago

Sat, Dec 6 - Tue, Dec 9

ONT

Los Angeles - Ontario Intl.

DAL

Love Field

$289 Roundtrip, found 5 days ago

$289

Roundtrip

found 5 days ago

Select Delta flight, departing Sat, Dec 6 from Los Angeles - Ontario Intl. to Love Field, returning Tue, Dec 9, priced at $289 found 5 days ago

Fri, Dec 26 - Tue, Dec 30

ONT

Los Angeles - Ontario Intl.

SLC

Salt Lake City Intl.

$299 Roundtrip, found 8 hours ago

$299

Roundtrip

found 8 hours ago

Select Delta flight, departing Fri, Dec 26 from Los Angeles - Ontario Intl. to Salt Lake City Intl., returning Tue, Dec 30, priced at $299 found 8 hours ago

Wed, Apr 8 - Wed, Apr 22

SNA

John Wayne

EWR

Newark Liberty Intl. Airport

$309 Roundtrip, found 6 days ago

$309

Roundtrip

found 6 days ago

Select Delta flight, departing Wed, Apr 8 from John Wayne to Newark Liberty Intl. Airport, returning Wed, Apr 22, priced at $309 found 6 days ago

Mon, Dec 15 - Tue, Dec 16

LGB

Long Beach Municipal

LAS

Harry Reid Intl.

$345 Roundtrip, found 2 days ago

$345

Roundtrip

found 2 days ago

Select Delta flight, departing Mon, Dec 15 from Long Beach Municipal to Harry Reid Intl., returning Tue, Dec 16, priced at $345 found 2 days ago

Wed, Sep 2 - Sun, Sep 13

LGB

Long Beach Municipal

SEA

Seattle - Tacoma Intl.

$364 Roundtrip, found 5 days ago

$364

Roundtrip

found 5 days ago

Select Delta flight, departing Wed, Sep 2 from Long Beach Municipal to Seattle - Tacoma Intl., returning Sun, Sep 13, priced at $364 found 5 days ago

Fri, Dec 26 - Tue, Dec 30

LGB

Long Beach Municipal

SLC

Salt Lake City Intl.

$387 Roundtrip, found 8 hours ago

$387

Roundtrip

found 8 hours ago

Select Delta flight, departing Fri, Dec 26 from Long Beach Municipal to Salt Lake City Intl., returning Tue, Dec 30, priced at $387 found 8 hours ago

Tue, Dec 2 - Wed, Dec 3

LGB

Long Beach Municipal

DEN

Denver Intl.

$433 Roundtrip, found 3 days ago

$433

Roundtrip

found 3 days ago

Select Delta flight, departing Tue, Dec 2 from Long Beach Municipal to Denver Intl., returning Wed, Dec 3, priced at $433 found 3 days ago

Sat, Jan 3 - Wed, Jan 7

SNA

John Wayne

ORD

O'Hare Intl.

$545 Roundtrip, found 3 days ago

$545

Roundtrip

found 3 days ago

Select Alaska Airlines flight, departing Sat, Jan 3 from John Wayne to O'Hare Intl., returning Wed, Jan 7, priced at $545 found 3 days ago

Sat, Jan 3 - Wed, Jan 7

ONT

Los Angeles - Ontario Intl.

ORD

O'Hare Intl.

$566 Roundtrip, found 3 days ago

$566

Roundtrip

found 3 days ago

Select American Airlines flight, departing Sat, Jan 3 from Los Angeles - Ontario Intl. to O'Hare Intl., returning Wed, Jan 7, priced at $566 found 3 days ago