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Did you mean flights from Chicago to Ontario?

Cheap Flights from Ontario to Chicago, IL, United States - ONT to CHI Last modified: Jun 27, 2016 1:36 AM

Popular flights from Ontario to Chicago Last modified: Jun 27, 2016 1:36 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.

Alaska Airlines
Departure Date Return Date Lowest Price
Oct 1, 2016 Oct 4, 2016 $274
American Airlines
Departure Date Return Date Lowest Price
Jul 18, 2016 Jul 20, 2016 $282
United Airlines
Departure Date Return Date Lowest Price
Sep 10, 2016 Sep 13, 2016 $174
Sep 10, 2016 Sep 14, 2016 $174
Sep 14, 2016 Sep 21, 2016 $174

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

We have collected flight cost data from across the web for travel from Ontario to Chicago, and have found the average flight price for this trip to be $203.

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

Airlines can adjust prices for plane tickets from Ontario to Chicago 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 Ontario to Chicago

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

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$187 $249 $174 $200 $187 $174 $249

Lowest Fares Chart By Month from Ontario to Chicago

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

Month Origin Destination Carrier Depart Date Return Date Stops Price
June Ontario Chicago American 6/30/16 7/6/16 1 $368
July Ontario Chicago American 7/18/16 7/20/16 0 $282
August Ontario Chicago United 8/29/16 9/7/16 1 $187
September Ontario Chicago United 9/10/16 9/13/16 1 $174
October Ontario Chicago Alaska 10/1/16 10/4/16 1 $274
November Ontario Chicago Alaska 11/4/16 11/8/16 1 $299
December Ontario Chicago United 12/1/16 12/4/16 1 $404
January Ontario Chicago United 1/5/17 1/9/17 1 $438

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

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 Ontario to Chicago. 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 Ontario to Chicago is $123.

The average price for round trip flights from Ontario to Chicago is $254.

Ontario to Chicago Flight Questions

Below are some common questions that asked about this flight route:

Question: What are the most popular connecting cities when flying from Ontario to Chicago?
Answer: Denver, CO

Airlines Flying from Ontario to Chicago (ONT to CHI) Number of flights searched: 249Last modified: Jun 27, 2016 1:36 AM

Below are the different airlines that fly from Ontario to Chicago with the average price of their plane tickets. Just remember that different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary of the next 30 days for flights from Ontario to Chicago.

Ontario to Chicago
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American DFW X X X X X X X
Alaska PDX X X X X X X X
Delta SLC X X X X X X X
Delta SLC / DTW X X X X X X X
United DEN X X X X X X X
Southwest - X X X X X X X
Southwest PHX X X X X X X X

Airports for Your Route

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

Cheap Domestic Flights to Chicago - CHI

FlightsAirlineLowest Price
Los Angeles to Chicago American, Alaska, JetBlue, Frontier, Spirit, United, Virgin America $119
San Diego to Chicago American, Alaska, Frontier, Spirit, United, Virgin America $93
Las Vegas to Chicago American, Alaska, Frontier, Spirit, United, Virgin America $137
Santa Ana to Chicago American, Alaska, Frontier, United $123
Burbank to Chicago American, Alaska, United $274
Palm Springs to Chicago American, Alaska, United, Virgin America $361
Long Beach to Chicago American, Alaska, JetBlue, United $394
Bakersfield to Chicago American, United $412
Santa Barbara to Chicago American, Alaska, United $362
Yuma to Chicago American, Alaska $314
San Luis Obispo to Chicago American, United $412
Palomar to ChicagoCheck Dates
Los Angeles to New York American, Alaska, JetBlue, Frontier, Spirit, Sun Country, United, Virgin America $270
Los Angeles to Atlanta American, Alaska, Frontier, Spirit, United $233
Los Angeles to Milwaukee American, Alaska, Frontier, United $286
Los Angeles to Dallas - Ft Worth American, Alaska, Frontier, Spirit, United, Virgin America $81
Los Angeles to Detroit American, Alaska, JetBlue, Frontier, Spirit, United $244
Las Vegas to Milwaukee American, Alaska, Frontier, United $107
Los Angeles to Las Vegas American, Spirit, United, Virgin America $79
Las Vegas to New York American, Alaska, JetBlue, Frontier, Spirit, Sun Country, United, Virgin America $255
Los Angeles to Indianapolis American, Alaska, Frontier, United $261
Los Angeles to Minneapolis - St Paul American, Alaska, Frontier, Spirit, Sun Country, United $152
Los Angeles to Denver American, Alaska, Frontier, Spirit, United, Virgin America $81
Los Angeles to St Louis American, Alaska, Frontier, United $259
Los Angeles to Madison American, Alaska, Frontier, United $276
San Diego to Milwaukee American, Alaska, Frontier, United $316
Las Vegas to Detroit American, Alaska, JetBlue, Frontier, Spirit, United $187
San Diego to Atlanta American, Alaska, Frontier, Spirit, United $316

Cheap International Flights to Chicago - CHI

FlightsAirlineLowest Price
Tijuana to Chicago American, AeroMexico, Alaska, Frontier, United, Virgin America, Volaris $376
Los Angeles to Toronto American, Air Canada, Alaska, JetBlue, Frontier, Sun Country, United, Virgin America, WestJet $359
Cheap Flights from Ontario to Chicago, IL, United States, from $174 Round trip from ONT to CHI