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, Oct 19 - Fri, Oct 23

ONT

Ontario Intl. Airport

LAS

Harry Reid Intl.

$88 Roundtrip, found 3 days ago

$88

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Mon, Oct 19 from Ontario Intl. Airport to Harry Reid Intl., returning Fri, Oct 23, priced at $88 found 3 days ago

Mon, Nov 2 - Wed, Nov 4

ONT

Ontario Intl. Airport

DEN

Denver Intl.

$98 Roundtrip, found 4 days ago

$98

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Mon, Nov 2 from Ontario Intl. Airport to Denver Intl., returning Wed, Nov 4, priced at $98 found 4 days ago

Sun, Oct 18 - Wed, Oct 21

SNA

John Wayne

LAS

Harry Reid Intl.

$117 Roundtrip, found 6 days ago

$117

Roundtrip

found 6 days ago

Select Breeze Airways flight, departing Sun, Oct 18 from John Wayne to Harry Reid Intl., returning Wed, Oct 21, priced at $117 found 6 days ago

Mon, Oct 19 - Thu, Oct 22

ONT

Ontario Intl. Airport

PHX

Sky Harbor Intl.

$128 Roundtrip, found 4 days ago

$128

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Mon, Oct 19 from Ontario Intl. Airport to Sky Harbor Intl., returning Thu, Oct 22, priced at $128 found 4 days ago

Thu, Nov 19 - Fri, Nov 27

SNA

John Wayne

SFO

San Francisco Intl.

$158 Roundtrip, found 6 days ago

$158

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Thu, Nov 19 from John Wayne to San Francisco Intl., returning Fri, Nov 27, priced at $158 found 6 days ago

Thu, Nov 19 - Fri, Dec 4

ONT

Ontario Intl. Airport

SEA

Seattle - Tacoma Intl.

$173 Roundtrip, found 2 days ago

$173

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Nov 19 from Ontario Intl. Airport to Seattle - Tacoma Intl., returning Fri, Dec 4, priced at $173 found 2 days ago

Mon, Nov 23 - Sat, Nov 28

ONT

Ontario Intl. Airport

SFO

San Francisco Intl.

$180 Roundtrip, found 4 days ago

$180

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Mon, Nov 23 from Ontario Intl. Airport to San Francisco Intl., returning Sat, Nov 28, priced at $180 found 4 days ago

Mon, Oct 19 - Thu, Oct 22

SNA

John Wayne

PHX

Sky Harbor Intl.

$188 Roundtrip, found 4 days ago

$188

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Mon, Oct 19 from John Wayne to Sky Harbor Intl., returning Thu, Oct 22, priced at $188 found 4 days ago

Sun, Oct 18 - Wed, Oct 21

LGB

Long Beach Municipal

LAS

Harry Reid Intl.

$195 Roundtrip, found 2 days ago

$195

Roundtrip

found 2 days ago

Select Southwest Airlines flight, departing Sun, Oct 18 from Long Beach Municipal to Harry Reid Intl., returning Wed, Oct 21, priced at $195 found 2 days ago

Tue, Nov 10 - Tue, Dec 1

ONT

Ontario Intl. Airport

DFW

Dallas-Fort Worth Intl.

$205 Roundtrip, found 4 days ago

$205

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Tue, Nov 10 from Ontario Intl. Airport to Dallas-Fort Worth Intl., returning Tue, Dec 1, priced at $205 found 4 days ago

Mon, Nov 9 - Wed, Nov 18

ONT

Ontario Intl. Airport

ORD

O'Hare Intl.

$210 Roundtrip, found 23 hours ago

$210

Roundtrip

found 23 hours ago

Select Frontier Airlines flight, departing Mon, Nov 9 from Ontario Intl. Airport to O'Hare Intl., returning Wed, Nov 18, priced at $210 found 23 hours ago

Thu, Nov 26 - Sun, Dec 6

SNA

John Wayne

SEA

Seattle - Tacoma Intl.

$242 Roundtrip, found 2 days ago

$242

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Nov 26 from John Wayne to Seattle - Tacoma Intl., returning Sun, Dec 6, priced at $242 found 2 days ago

Tue, Nov 10 - Thu, Nov 19

SNA

John Wayne

ORD

O'Hare Intl.

$275 Roundtrip, found 23 hours ago

$275

Roundtrip

found 23 hours ago

Select American Airlines flight, departing Tue, Nov 10 from John Wayne to O'Hare Intl., returning Thu, Nov 19, priced at $275 found 23 hours ago

Tue, Nov 3 - Thu, Nov 5

LGB

Long Beach Municipal

DAL

Love Field

$287 Roundtrip, found 2 days ago

$287

Roundtrip

found 2 days ago

Select Southwest Airlines flight, departing Tue, Nov 3 from Long Beach Municipal to Love Field, returning Thu, Nov 5, priced at $287 found 2 days ago

Wed, Oct 14 - Wed, Oct 21

ONT

Ontario Intl. Airport

SLC

Salt Lake City Intl.

$288 Roundtrip, found 2 days ago

$288

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Wed, Oct 14 from Ontario Intl. Airport to Salt Lake City Intl., returning Wed, Oct 21, priced at $288 found 2 days ago

Tue, Oct 27 - Thu, Oct 29

ONT

Ontario Intl. Airport

JFK

John F. Kennedy Intl.

$327 Roundtrip, found 6 hours ago

$327

Roundtrip

found 6 hours ago

Select Alaska Airlines flight, departing Tue, Oct 27 from Ontario Intl. Airport to John F. Kennedy Intl., returning Thu, Oct 29, priced at $327 found 6 hours ago

Mon, Nov 2 - Fri, Nov 13

ONT

Ontario Intl. Airport

LGA

LaGuardia

$327 Roundtrip, found 8 hours ago

$327

Roundtrip

found 8 hours ago

Select Delta flight, departing Mon, Nov 2 from Ontario Intl. Airport to LaGuardia, returning Fri, Nov 13, priced at $327 found 8 hours ago

Thu, Oct 15 - Wed, Oct 21

SNA

John Wayne

DFW

Dallas-Fort Worth Intl.

$345 Roundtrip, found 3 days ago

$345

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Thu, Oct 15 from John Wayne to Dallas-Fort Worth Intl., returning Wed, Oct 21, priced at $345 found 3 days ago

Wed, Oct 28 - Mon, Nov 2

SNA

John Wayne

DAL

Love Field

$359 Roundtrip, found 4 days ago

$359

Roundtrip

found 4 days ago

Select Southwest Airlines flight, departing Wed, Oct 28 from John Wayne to Love Field, returning Mon, Nov 2, priced at $359 found 4 days ago

Wed, Oct 28 - Mon, Nov 2

ONT

Ontario Intl. Airport

DAL

Love Field

$367 Roundtrip, found 4 days ago

$367

Roundtrip

found 4 days ago

Select Southwest Airlines flight, departing Wed, Oct 28 from Ontario Intl. Airport to Love Field, returning Mon, Nov 2, priced at $367 found 4 days ago