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Did you mean flights from Ontario to Chicago?

Cheap Flights from Chicago to Ontario, CA, United States - CHI to ONT Last modified: Jun 29, 2016 12:51 AM

Popular flights from Chicago to Ontario Last modified: Jun 29, 2016 12:51 AM

We’ve got the inside scoop on finding the best time to fly for the best price. Not sure when to travel for your next vacation? Find details below on when-to-fly and when-to-buy.

United
CHIONT
Wed 9/7
1 stop
ONTCHI
Wed 9/14
1 stop
$174
Select
United
CHIONT
Wed 9/21
1 stop
ONTCHI
Sat 9/24
1 stop
$174
Select
American
CHIONT
Sat 7/23
nonstop
ONTCHI
Tue 7/26
nonstop
$277
Select
American
CHIONT
Sat 7/23
nonstop
ONTCHI
Tue 8/2
nonstop
$277
Select
American
CHIONT
Sat 7/30
nonstop
ONTCHI
Tue 8/2
nonstop
$277
Select
Alaska
CHIONT
Mon 10/3
1 stop
ONTCHI
Wed 10/5
1 stop
$327
Select

How Much Does it Cost to Fly from Chicago to Ontario (CHI to ONT)?

We have collected flight cost data from across the web for travel from Chicago to Ontario, and have found the average flight price for this trip to be $221.

When Can I Buy the Cheapest Flight from Chicago to Ontario (CHI to ONT)?

Airlines can adjust prices for plane tickets from Chicago to Ontario based on the day and time that you decide to book your flight. We have collected data from all airlines, and have discovered that the best days to book flights are Tuesdays, Wednesdays, and Saturdays. Read our article to find more information about the best time to buy airline tickets.

Cheapest Day To Fly from Chicago to Ontario

The chart below shows up-to-date information regarding the cheapest days to fly from Chicago to Ontario.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$187 $246 $174 $187 $187 $246 $318

Lowest Fares Chart By Month from Chicago to Ontario

The chart below shows the lowest fare by month when flying from Chicago to Ontario.

Month Origin Destination Carrier Depart Date Return Date Stops Price
June Chicago Ontario United 6/30/16 7/14/16 2 $639
July Chicago Ontario American 7/23/16 7/26/16 0 $277
August Chicago Ontario United 8/24/16 9/7/16 1 $246
September Chicago Ontario United 9/7/16 9/14/16 1 $174
October Chicago Ontario American 10/5/16 10/8/16 1 $318
November Chicago Ontario American 11/3/16 11/9/16 1 $318
December Chicago Ontario United 12/1/16 12/4/16 1 $318
January Chicago Ontario Alaska 1/23/17 1/28/17 0 $348
TIPSave $399 by flying into Las Vegas instead of Ontario from Chicago

Round Trip vs One Way Flights from Chicago to Ontario (CHI to ONT)

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from Chicago to Ontario. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from Chicago to Ontario is $144.

The average price for round trip flights from Chicago to Ontario is $263.

Airports for Your Route

These pages contain information about the major airports in Chicago and Ontario, so you can feel comfortable knowing how to get around whether you are about to take off or you just landed.

Cheap Domestic Flights from Chicago - CHI

FlightsAirlineLowest Price
Chicago to Los Angeles American, Alaska, Frontier, Spirit, United, Virgin America $81
Chicago to Las Vegas American, Alaska, Frontier, Spirit, United, Virgin America $133
Chicago to Santa Ana American, Alaska, Frontier, United $119
Chicago to San Diego American, Alaska, Frontier, Spirit, United, Virgin America $93
Chicago to Long Beach American, Alaska, United $318
Chicago to San Francisco American, Alaska, Frontier, United, Virgin America $227
Chicago to Phoenix American, Alaska, Frontier, Spirit, United $137
Chicago to Burbank American, Alaska, United $282
Chicago to New York American, Alaska, JetBlue, Spirit, United $81
Chicago to Palm Springs American, Alaska, United, Virgin America $361

Cheap Domestic Flights to Ontario - ONT

FlightsAirlineLowest Price
Milwaukee to Ontario American, Alaska, United $353
Indianapolis to Ontario American, United $294
Madison to Ontario American, Alaska, United $386
Grand Rapids to Ontario American, Alaska, United $480
Peoria to Ontario American, United $384
Moline to Ontario American, Alaska, United $320
Ft Wayne to Ontario American, Alaska, United $486
Lansing to Ontario American, Alaska, United $416
South Bend to Ontario United $482
Appleton to OntarioCheck Dates
Green Bay to Ontario American, Alaska, United Check Dates
Toledo to Ontario American $508
Bloomington - Normal to Ontario American Check Dates
Springfield to Ontario American, United $376
Kalamazoo to Ontario American, United Check Dates
Champaign to Ontario American $475
Dubuque to Ontario American Check Dates
Milwaukee to Los Angeles American, Alaska, Frontier, United $284
Indianapolis to Los Angeles American, Alaska, Frontier, United $261
Grand Rapids to Los Angeles American, Alaska, United $320
Cheap Flights from Chicago to Ontario, CA, United States, from $174 Round trip from CHI to ONT