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, Jan 13 - Tue, Jan 20

ONT

Los Angeles - Ontario Intl.

DEN

Denver Intl.

$67 Roundtrip, found 2 days ago

$67

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Tue, Jan 13 from Los Angeles - Ontario Intl. to Denver Intl., returning Tue, Jan 20, priced at $67 found 2 days ago

Tue, Jan 6 - Fri, Jan 9

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 Tue, Jan 6 from Los Angeles - Ontario Intl. to Harry Reid Intl., returning Fri, Jan 9, priced at $68 found 2 days ago

Thu, Jan 8 - Fri, Jan 23

ONT

Los Angeles - Ontario Intl.

SEA

Seattle - Tacoma Intl.

$99 Roundtrip, found 3 days ago

$99

Roundtrip

found 3 days ago

Select Hawaiian Airlines flight, departing Thu, Jan 8 from Los Angeles - Ontario Intl. to Seattle - Tacoma Intl., returning Fri, Jan 23, priced at $99 found 3 days ago

Sun, Jan 18 - Wed, Feb 4

ONT

Los Angeles - Ontario Intl.

DFW

Dallas-Fort Worth Intl.

$109 Roundtrip, found 5 days ago

$109

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sun, Jan 18 from Los Angeles - Ontario Intl. to Dallas-Fort Worth Intl., returning Wed, Feb 4, priced at $109 found 5 days ago

Mon, Mar 30 - Mon, Apr 13

ONT

Los Angeles - Ontario Intl.

SFO

San Francisco Intl.

$155 Roundtrip, found 6 days ago

$155

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Mon, Mar 30 from Los Angeles - Ontario Intl. to San Francisco Intl., returning Mon, Apr 13, priced at $155 found 6 days ago

Mon, Dec 15 - Tue, Dec 16

SNA

John Wayne

DEN

Denver Intl.

$170 Roundtrip, found 4 days ago

$170

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Mon, Dec 15 from John Wayne to Denver Intl., returning Tue, Dec 16, priced at $170 found 4 days ago

Mon, Dec 22 - Tue, Dec 23

ONT

Los Angeles - Ontario Intl.

PHX

Sky Harbor Intl.

$172 Roundtrip, found 5 days ago

$172

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Mon, Dec 22 from Los Angeles - Ontario Intl. to Sky Harbor Intl., returning Tue, Dec 23, priced at $172 found 5 days ago

Wed, Jan 7 - Sat, Jan 10

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 Wed, Jan 7 from Los Angeles - Ontario Intl. to John F. Kennedy Intl., returning Sat, Jan 10, priced at $192 found 2 days ago

Thu, Jan 8 - Mon, Jan 12

ONT

Los Angeles - Ontario Intl.

LGA

LaGuardia

$192 Roundtrip, found 2 days ago

$192

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Jan 8 from Los Angeles - Ontario Intl. to LaGuardia, returning Mon, Jan 12, priced at $192 found 2 days ago

Wed, Jan 21 - Tue, Jan 27

LGB

Long Beach Municipal

LAS

Harry Reid Intl.

$234 Roundtrip, found 6 days ago

$234

Roundtrip

found 6 days ago

Select Delta flight, departing Wed, Jan 21 from Long Beach Municipal to Harry Reid Intl., returning Tue, Jan 27, priced at $234 found 6 days ago

Tue, Jun 2 - Tue, Jun 9

SNA

John Wayne

PAE

Seattle Paine Field Intl. Airport

$247 Roundtrip, found 5 days ago

$247

Roundtrip

found 5 days ago

Select Alaska Airlines flight, departing Tue, Jun 2 from John Wayne to Seattle Paine Field Intl. Airport, returning Tue, Jun 9, priced at $247 found 5 days ago

Wed, Dec 24 - Sun, Dec 28

SNA

John Wayne

PHX

Sky Harbor Intl.

$270 Roundtrip, found 10 hours ago

$270

Roundtrip

found 10 hours ago

Select American Airlines flight, departing Wed, Dec 24 from John Wayne to Sky Harbor Intl., returning Sun, Dec 28, priced at $270 found 10 hours ago

Thu, Jun 4 - Sat, Jun 13

SNA

John Wayne

SEA

Seattle - Tacoma Intl.

$277 Roundtrip, found 5 days ago

$277

Roundtrip

found 5 days ago

Select Alaska Airlines flight, departing Thu, Jun 4 from John Wayne to Seattle - Tacoma Intl., returning Sat, Jun 13, priced at $277 found 5 days ago

Tue, Dec 23 - Fri, Dec 26

LGB

Long Beach Municipal

PHX

Sky Harbor Intl.

$277 Roundtrip, found 10 hours ago

$277

Roundtrip

found 10 hours ago

Select Southwest Airlines flight, departing Tue, Dec 23 from Long Beach Municipal to Sky Harbor Intl., returning Fri, Dec 26, priced at $277 found 10 hours ago

Thu, Dec 25 - Tue, Jan 6

ONT

Los Angeles - Ontario Intl.

DAL

Love Field

$278 Roundtrip, found 1 day ago

$278

Roundtrip

found 1 day ago

Select Delta flight, departing Thu, Dec 25 from Los Angeles - Ontario Intl. to Love Field, returning Tue, Jan 6, priced at $278 found 1 day ago

Thu, Feb 19 - Sun, Feb 22

SNA

John Wayne

EWR

Newark Liberty Intl. Airport

$299 Roundtrip, found 6 days ago

$299

Roundtrip

found 6 days ago

Select United flight, departing Thu, Feb 19 from John Wayne to Newark Liberty Intl. Airport, returning Sun, Feb 22, priced at $299 found 6 days ago

Fri, Feb 27 - Sat, Mar 14

ONT

Los Angeles - Ontario Intl.

EWR

Newark Liberty Intl. Airport

$319 Roundtrip, found 2 days ago

$319

Roundtrip

found 2 days ago

Select Hawaiian Airlines flight, departing Fri, Feb 27 from Los Angeles - Ontario Intl. to Newark Liberty Intl. Airport, returning Sat, Mar 14, priced at $319 found 2 days ago

Thu, Feb 19 - Sun, Feb 22

SNA

John Wayne

LGA

LaGuardia

$414 Roundtrip, found 6 days ago

$414

Roundtrip

found 6 days ago

Select Spirit Airlines flight, departing Thu, Feb 19 from John Wayne to LaGuardia, returning Sun, Feb 22, priced at $414 found 6 days ago

Sun, Dec 21 - Wed, Dec 24

LGB

Long Beach Municipal

SEA

Seattle - Tacoma Intl.

$431 Roundtrip, found 5 days ago

$431

Roundtrip

found 5 days ago

Select Delta flight, departing Sun, Dec 21 from Long Beach Municipal to Seattle - Tacoma Intl., returning Wed, Dec 24, priced at $431 found 5 days ago

Thu, Feb 19 - Sun, Feb 22

SNA

John Wayne

JFK

John F. Kennedy Intl.

$432 Roundtrip, found 6 days ago

$432

Roundtrip

found 6 days ago

Select American Airlines flight, departing Thu, Feb 19 from John Wayne to John F. Kennedy Intl., returning Sun, Feb 22, priced at $432 found 6 days ago