$103 Flight Deals from Chicago O Hare Airport to Ontario International Airport

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Save an average of $240 per person when bundling your flight and hotel together with Priceline

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Stops

Nonstop

from $313

Up to 1 stop

$251

Up to 2 stops

$261

Airlines

Alaska Airlines

$355

American Airlines

$282

Delta Air Lines

$251

Frontier Airlines

$279

Southwest Airlines

$396

United Airlines

$313

Cabin Class

Economy

$251

Departure Airports

Chicago O Hare Airport

$251

Arrival Airports

Ontario International Airport

$251

Layover Airports

Charlotte Douglas International Airport

$336

Dallas Fort Worth International Airport

$282

Dallas Love Field

$396

Denver International Airport

$279

Detroit Metropolitan Airport

$261

Harry Reid International Airport

$317

Hartsfield Jackson Atlanta International Airport

$256

Minneapolis-St Paul International/Wold-Chamberlain Airport

$261

Phoenix Sky Harbor International Airport

$282

Portland International Airport

$355

Salt Lake City International Airport

$251

San Francisco International Airport

$326

Seattle Tacoma International Airport

$261

Best Price. GUARANTEED.

Exclusively for Priceline Members
Tired of searching? Book now!
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On average save $240 per traveler

Delta Air Lines

05/25/25

7:30am

ORD

4h 45m

SLC

05/25/25

12:15pm

ONT

Delta Air Lines

06/02/25

1:10pm

ONT

8h 30m

SLC

06/02/25

9:40pm

ORD

^$251

Free cancellation within 83 hours of booking

Delta Air Lines

06/10/25

7:40am

ORD

4h 37m

SLC

06/10/25

12:17pm

ONT

Delta Air Lines

06/13/25

1:15pm

ONT

8h 54m

SLC

06/13/25

10:09pm

ORD

^$256

Free cancellation within 83 hours of booking

Delta Air Lines

05/17/25

4:30pm

ORD

5h 46m

SLC

05/17/25

10:16pm

ONT

Delta Air Lines

05/21/25

6:15am

ONT

9h 5m

ATL

05/21/25

3:20pm

ORD

^$256

Free cancellation within 83 hours of booking

Delta Air Lines

06/14/25

7:40am

ORD

4h 37m

SLC

06/14/25

12:17pm

ONT

Delta Air Lines

06/19/25

1:15pm

ONT

8h 54m

SLC

06/19/25

10:09pm

ORD

^$256

Free cancellation within 83 hours of booking

Delta Air Lines

05/24/25

4:30pm

ORD

5h 46m

SLC

05/24/25

10:16pm

ONT

Delta Air Lines

06/03/25

6:00am

ONT

15h 40m

SEA

SLC

06/03/25

9:40pm

ORD

^$261

Free cancellation within 83 hours of booking

Delta Air Lines

05/30/25

7:30am

ORD

4h 45m

SLC

05/30/25

12:15pm

ONT

Delta Air Lines

06/02/25

6:00am

ONT

11h 36m

SLC

ATL

06/02/25

5:36pm

ORD

^$261

Free cancellation within 83 hours of booking

Delta Air Lines

06/07/25

4:30pm

ORD

5h 46m

SLC

06/07/25

10:16pm

ONT

Delta Air Lines

06/12/25

7:05am

ONT

11h 36m

ATL

DTW

06/12/25

6:41pm

ORD

^$261

Free cancellation within 83 hours of booking

Delta Air Lines

05/31/25

4:30pm

ORD

5h 46m

SLC

05/31/25

10:16pm

ONT

Delta Air Lines

06/01/25

10:01am

ONT

11h 26m

SLC

ATL

06/01/25

9:27pm

ORD

^$261

Free cancellation within 83 hours of booking

Delta Air Lines

06/12/25

7:40am

ORD

4h 37m

SLC

06/12/25

12:17pm

ONT

Delta Air Lines

06/16/25

10:05pm

ONT

10h 36m

ATL

DTW

06/17/25

8:41am

ORD

^$261

Free cancellation within 83 hours of booking

Delta Air Lines

06/02/25

7:15pm

ORD

4h 27m

SLC

06/02/25

11:42pm

ONT

Delta Air Lines

06/09/25

7:05am

ONT

12h 27m

ATL

MSP

06/09/25

7:32pm

ORD

^$261

Free cancellation within 83 hours of booking

Delta Air Lines

05/23/25

7:15pm

ORD

4h 27m

SLC

05/23/25

11:42pm

ONT

Delta Air Lines

05/28/25

7:05pm

ONT

13h 35m

SEA

DTW

05/29/25

8:40am

ORD

^$261

Free cancellation within 83 hours of booking

Frontier Airlines

05/16/25

5:21pm

ORD

6h 38m

DEN

05/16/25

11:59pm

ONT

Frontier Airlines

05/26/25

5:21pm

ONT

30h 31m

DEN

05/27/25

11:52pm

ORD

^$279

Free cancellation within 83 hours of booking

American Airlines

05/25/25

7:06am

ORD

4h 44m

PHX

05/25/25

11:50am

ONT

American Airlines

06/03/25

2:44pm

ONT

9h 12m

DFW

06/03/25

11:56pm

ORD

^$282

Free cancellation within 83 hours of booking

Delta Air Lines

06/09/25

5:39pm

ORD

6h 7m

MSP

SLC

06/09/25

11:46pm

ONT

Delta Air Lines

06/12/25

1:42pm

ONT

8h 27m

SLC

06/12/25

10:09pm

ORD

^$292

Free cancellation within 83 hours of booking

Delta Air Lines

05/24/25

3:43pm

ORD

6h 33m

MSP

SLC

05/24/25

10:16pm

ONT

Delta Air Lines

06/03/25

6:00am

ONT

15h 40m

SEA

SLC

06/03/25

9:40pm

ORD

^$297

Free cancellation within 83 hours of booking

United Airlines

06/06/25

7:55pm

ORD

2h 31m

Direct

06/06/25

10:26pm

ONT

United Airlines

06/11/25

5:38pm

ONT

6h 21m

Direct

06/11/25

11:59pm

ORD

^$313

Free cancellation within 83 hours of booking

United Airlines

06/02/25

7:55pm

ORD

2h 31m

Direct

06/02/25

10:26pm

ONT

United Airlines

06/07/25

12:30am

ONT

6h 12m

Direct

06/07/25

6:42am

ORD

^$313

Free cancellation within 83 hours of booking

United Airlines

06/05/25

7:55pm

ORD

2h 31m

Direct

06/05/25

10:26pm

ONT

United Airlines

06/07/25

4:40pm

ONT

6h 24m

Direct

06/07/25

11:04pm

ORD

^$313

Free cancellation within 83 hours of booking

Frontier Airlines

05/24/25

6:00am

ORD

27h 15m

DEN

05/25/25

9:15am

ONT

Frontier Airlines

05/28/25

7:37pm

ONT

25h 25m

LAS

05/29/25

9:02pm

ORD

^$317

Free cancellation within 83 hours of booking

Frontier Airlines

05/25/25

6:00am

ORD

17h 51m

DEN

05/25/25

11:51pm

ONT

Frontier Airlines

06/02/25

12:59am

ONT

23h

DEN

06/02/25

11:59pm

ORD

^$317

Free cancellation within 83 hours of booking

United Airlines

05/30/25

7:55pm

ORD

2h 31m

Direct

05/30/25

10:26pm

ONT

United Airlines

06/07/25

3:50pm

ONT

9h 9m

SFO

06/08/25

12:59am

ORD

^$326

Free cancellation within 83 hours of booking

United Airlines

06/06/25

7:55pm

ORD

2h 31m

Direct

06/06/25

10:26pm

ONT

United Airlines

06/09/25

8:21pm

ONT

9h 8m

SFO

06/10/25

5:29am

ORD

^$326

Free cancellation within 83 hours of booking

United Airlines

06/02/25

7:55pm

ORD

2h 31m

Direct

06/02/25

10:26pm

ONT

United Airlines

06/09/25

6:41pm

ONT

11h 38m

SFO

06/10/25

6:19am

ORD

^$326

Free cancellation within 83 hours of booking

American Airlines

05/30/25

1:20pm

ORD

5h 3m

PHX

05/30/25

6:23pm

ONT

American Airlines

06/07/25

2:40pm

ONT

9h 3m

DFW

06/07/25

11:43pm

ORD

^$336

Free cancellation within 83 hours of booking

American Airlines

05/20/25

5:00am

ORD

4h 58m

DFW

05/20/25

9:58am

ONT

American Airlines

06/03/25

4:37pm

ONT

PHX

06/04/25

12:37am

ORD

^$336

Free cancellation within 83 hours of booking

American Airlines

05/17/25

12:08pm

ORD

8h 57m

CLT

05/17/25

9:05pm

ONT

American Airlines

05/24/25

10:51am

ONT

9h 33m

DFW

05/24/25

8:24pm

ORD

^$336

Free cancellation within 83 hours of booking

American Airlines

05/24/25

3:01pm

ORD

6h 4m

CLT

05/24/25

9:05pm

ONT

American Airlines

05/31/25

7:30am

ONT

10h 54m

DFW

05/31/25

6:24pm

ORD

^$336

Free cancellation within 83 hours of booking

Alaska Airlines

05/25/25

6:00am

ORD

9h 50m

SEA

05/25/25

3:50pm

ONT

Alaska Airlines

06/03/25

6:00am

ONT

17h 56m

SEA

PDX

06/03/25

11:56pm

ORD

^$355

Free cancellation within 83 hours of booking

Southwest Airlines

05/25/25

12:40pm

ORD

9h 50m

DEN

05/25/25

10:30pm

ONT

Southwest Airlines

06/03/25

7:00am

ONT

14h 30m

DAL

06/03/25

9:30pm

ORD

^$396

Free cancellation within 83 hours of booking

Southwest Airlines

05/25/25

12:40pm

ORD

9h 50m

DEN

05/25/25

10:30pm

ONT

Southwest Airlines

06/02/25

12:00pm

ONT

11h 40m

PHX

LAS

06/02/25

11:40pm

ORD

^$401

Free cancellation within 83 hours of booking

Top Deals on flights from Chicago O Hare Airport to Ontario International Airport

Chicago, US (CHI) - Los Angeles, US (LAX)

Frontier Airlines

May 19

5:21pm

ORD

6h 38m

DEN

May 19

11:59pm

ONT

as low as

$103

Chicago, US (CHI) - Los Angeles, US (LAX)

Alaska Airlines

May 9

5:56pm

ORD

6h 3m

SEA

May 9

11:59pm

ONT

as low as

$123

Chicago, US (CHI) - Los Angeles, US (LAX)

Delta Air Lines

May 8

5:30am

ORD

5h 38m

ATL

May 8

11:08am

ONT

as low as

$128

Chicago, US (CHI) - Los Angeles, US (LAX)

Delta Air Lines

May 12

7:30am

ORD

4h 45m

SLC

May 12

12:15pm

ONT

as low as

$128

Chicago, US (CHI) - Los Angeles, US (LAX)

Delta Air Lines

May 19

7:10am

ORD

12h 23m

DTW

ATL

May 19

7:33pm

ONT

as low as

$133

Chicago, US (CHI) - Los Angeles, US (LAX)

Hawaiian Airlines

May 9

5:56pm

ORD

6h 3m

SEA

May 9

11:59pm

ONT

as low as

$137

Chicago, US (CHI) - Los Angeles, US (LAX)

American Airlines

May 13

6:00am

ORD

5h 50m

PHX

May 13

11:50am

ONT

as low as

$168

Chicago, US (CHI) - Los Angeles, US (LAX)

United Airlines

May 12

12:45pm

ORD

5h 16m

SFO

May 12

6:01pm

ONT

as low as

$168

Chicago, US (CHI) - Los Angeles, US (LAX)

American Airlines

May 8

6:00am

ORD

5h 50m

DFW

May 8

11:50am

ONT

as low as

$168

Chicago, US (CHI) - Los Angeles, US (LAX)

American Airlines

May 24

3:01pm

ORD

6h 4m

CLT

May 24

9:05pm

ONT

as low as

$168

Chicago, US (CHI) - Los Angeles, US (LAX)

Alaska Airlines

May 13

2:07pm

ORD

6h 12m

PDX

May 13

8:19pm

ONT

as low as

$188

Chicago, US (CHI) - Los Angeles, US (LAX)

Hahn Air

May 9

5:56pm

ORD

6h 3m

SEA

May 9

11:59pm

ONT

as low as

$225

Flights to Los Angeles

Return flights

Flights From Ontario International Airport To Chicago O Hare Airport

Browse origins

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North America
United States
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Chicago O Hare Airport

Browse destinations

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United States
California
Los Angeles
Ontario International Airport

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Flight Deals from Chicago O Hare Airport to Ontario International Airport from $103

Stops

Airlines

Cabin Class

Departure Airports

Arrival Airports

Layover Airports

Best Price. GUARANTEED.

Top Deals on flights from Chicago O Hare Airport to Ontario International Airport

Flights to Los Angeles

Return flights

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