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.

Mon, Jul 28 - Mon, Aug 4

ONT

Los Angeles - Ontario Intl.

SFO

San Francisco Intl.

$48 Roundtrip, found 6 hours ago

$48

Roundtrip

found 6 hours ago

Select Frontier Airlines flight, departing Mon, Jul 28 from Los Angeles - Ontario Intl. to San Francisco Intl., returning Mon, Aug 4, priced at $48 found 6 hours ago

Sun, Aug 17 - Mon, Aug 18

SNA

John Wayne

LAS

Harry Reid Intl.

$66 Roundtrip, found 2 days ago

$66

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Sun, Aug 17 from John Wayne to Harry Reid Intl., returning Mon, Aug 18, priced at $66 found 2 days ago

Wed, Nov 12 - Wed, Nov 19

ONT

Los Angeles - Ontario Intl.

LAS

Harry Reid Intl.

$68 Roundtrip, found 4 days ago

$68

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Wed, Nov 12 from Los Angeles - Ontario Intl. to Harry Reid Intl., returning Wed, Nov 19, priced at $68 found 4 days ago

Mon, Jul 14 - Mon, Jul 21

SNA

John Wayne

SFO

San Francisco Intl.

$84 Roundtrip, found 3 days ago

$84

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Mon, Jul 14 from John Wayne to San Francisco Intl., returning Mon, Jul 21, priced at $84 found 3 days ago

Fri, Jul 18 - Fri, Jul 18

ONT

Los Angeles - Ontario Intl.

DEN

Denver Intl.

$103 Roundtrip, found 21 hours ago

$103

Roundtrip

found 21 hours ago

Select Frontier Airlines flight, departing Fri, Jul 18 from Los Angeles - Ontario Intl. to Denver Intl., returning Fri, Jul 18, priced at $103 found 21 hours ago

Tue, Sep 23 - Sat, Oct 4

SNA

John Wayne

DEN

Denver Intl.

$108 Roundtrip, found 3 days ago

$108

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Tue, Sep 23 from John Wayne to Denver Intl., returning Sat, Oct 4, priced at $108 found 3 days ago

Thu, Aug 21 - Sat, Aug 23

ONT

Los Angeles - Ontario Intl.

DFW

Dallas-Fort Worth Intl.

$114 Roundtrip, found 1 day ago

$114

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Aug 21 from Los Angeles - Ontario Intl. to Dallas-Fort Worth Intl., returning Sat, Aug 23, priced at $114 found 1 day ago

Sat, Jul 12 - Tue, Jul 15

ONT

Los Angeles - Ontario Intl.

PHX

Sky Harbor Intl.

$125 Roundtrip, found 4 days ago

$125

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Sat, Jul 12 from Los Angeles - Ontario Intl. to Sky Harbor Intl., returning Tue, Jul 15, priced at $125 found 4 days ago

Tue, Aug 5 - Tue, Aug 19

ONT

Los Angeles - Ontario Intl.

SEA

Seattle - Tacoma Intl.

$130 Roundtrip, found 2 days ago

$130

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Tue, Aug 5 from Los Angeles - Ontario Intl. to Seattle - Tacoma Intl., returning Tue, Aug 19, priced at $130 found 2 days ago

Tue, Oct 28 - Sat, Nov 1

SNA

John Wayne

ORD

O'Hare Intl.

$179 Roundtrip, found 6 days ago

$179

Roundtrip

found 6 days ago

Select Spirit Airlines flight, departing Tue, Oct 28 from John Wayne to O'Hare Intl., returning Sat, Nov 1, priced at $179 found 6 days ago

Tue, Aug 19 - Tue, Aug 26

SNA

John Wayne

SEA

Seattle - Tacoma Intl.

$187 Roundtrip, found 2 days ago

$187

Roundtrip

found 2 days ago

Select Alaska Airlines flight, departing Tue, Aug 19 from John Wayne to Seattle - Tacoma Intl., returning Tue, Aug 26, priced at $187 found 2 days ago

Mon, Aug 18 - Sat, Aug 23

SNA

John Wayne

EWR

Newark Liberty Intl. Airport

$195 Roundtrip, found 1 day ago

$195

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Mon, Aug 18 from John Wayne to Newark Liberty Intl. Airport, returning Sat, Aug 23, priced at $195 found 1 day ago

Tue, Oct 21 - Mon, Oct 27

LGB

Long Beach Municipal

SLC

Salt Lake City Intl.

$197 Roundtrip, found 2 days ago

$197

Roundtrip

found 2 days ago

Select Delta flight, departing Tue, Oct 21 from Long Beach Municipal to Salt Lake City Intl., returning Mon, Oct 27, priced at $197 found 2 days ago

Sat, Sep 6 - Sat, Sep 20

SNA

John Wayne

SLC

Salt Lake City Intl.

$202 Roundtrip, found 5 hours ago

$202

Roundtrip

found 5 hours ago

Select Spirit Airlines flight, departing Sat, Sep 6 from John Wayne to Salt Lake City Intl., returning Sat, Sep 20, priced at $202 found 5 hours ago

Tue, Aug 19 - Tue, Aug 26

SNA

John Wayne

PAE

Seattle Paine Field Intl. Airport

$216 Roundtrip, found 2 days ago

$216

Roundtrip

found 2 days ago

Select Alaska Airlines flight, departing Tue, Aug 19 from John Wayne to Seattle Paine Field Intl. Airport, returning Tue, Aug 26, priced at $216 found 2 days ago

Fri, Aug 8 - Tue, Aug 12

ONT

Los Angeles - Ontario Intl.

ORD

O'Hare Intl.

$219 Roundtrip, found 2 days ago

$219

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Fri, Aug 8 from Los Angeles - Ontario Intl. to O'Hare Intl., returning Tue, Aug 12, priced at $219 found 2 days ago

Sat, Sep 13 - Tue, Sep 16

ONT

Los Angeles - Ontario Intl.

DAL

Love Field

$237 Roundtrip, found 4 hours ago

$237

Roundtrip

found 4 hours ago

Select Delta flight, departing Sat, Sep 13 from Los Angeles - Ontario Intl. to Love Field, returning Tue, Sep 16, priced at $237 found 4 hours ago

Sun, Dec 14 - Mon, Dec 22

ONT

Los Angeles - Ontario Intl.

SLC

Salt Lake City Intl.

$239 Roundtrip, found 5 days ago

$239

Roundtrip

found 5 days ago

Select Delta flight, departing Sun, Dec 14 from Los Angeles - Ontario Intl. to Salt Lake City Intl., returning Mon, Dec 22, priced at $239 found 5 days ago

Fri, Aug 8 - Mon, Aug 11

ONT

Los Angeles - Ontario Intl.

PAE

Seattle Paine Field Intl. Airport

$254 Roundtrip, found 1 day ago

$254

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Aug 8 from Los Angeles - Ontario Intl. to Seattle Paine Field Intl. Airport, returning Mon, Aug 11, priced at $254 found 1 day ago

Wed, Oct 1 - Wed, Oct 8

ONT

Los Angeles - Ontario Intl.

JFK

John F. Kennedy Intl.

$267 Roundtrip, found 3 days ago

$267

Roundtrip

found 3 days ago

Select JetBlue Airways flight, departing Wed, Oct 1 from Los Angeles - Ontario Intl. to John F. Kennedy Intl., returning Wed, Oct 8, priced at $267 found 3 days ago