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Airports in Chicago
The cheapest time of year to fly to Chicago from Ontario is September. Most expensive is March
The cheapest day of the week is typically Thursday. The most expensive is typically Monday
in the evening
Ontario to Chicago flights are approximately 36% more expensive in the afternoon than in the evening
American Airlines, Frontier, and Juneyao Airlines are the most popular carriers operating from Ontario to Chicago
Ontario - Chicago Midway
Fly from Ontario to Chicago Midway for the best Ontario - Chicago flight prices
25 days before
The cheapest time to buy a flight from Ontario to Chicago is approximately 25 days to departure
When traveling from Ontario to Chicago, the most popular airport to fly into is Chicago O'Hare Intl Airport. The majority of travelers flying into Chicago O'Hare Intl Airport from Ontario are departing from Ontario Airport. If you are looking for alternate airports to fly out of when traveling to Chicago, you can try flying out of Los Angeles Airport (in Los Angeles), Burbank Bob Hope Airport (in Burbank), or Santa Ana J. Wayne/Orange Cnty Airport (in Santa Ana). When traveling from Ontario, it is helpful to have an alternative airport to fly into when you land in Chicago. Good options for arrival airports in Chicago, you can try Chicago Midway Airport (in Chicago) or Chicago Greater Rockford Airport (in Chicago). The least expensive flight option from Ontario to Chicago will typically be LAX — ORD during the month of June with an average price of $122 RT.
|Los Angeles Airport (LAX) to Chicago O'Hare Intl Airport (ORD)||$122|
|Los Angeles Airport (LAX) to Chicago Midway Airport (MDW)||$293|
|Burbank Bob Hope Airport (BUR) to Chicago O'Hare Intl Airport (ORD)||$231|
|Santa Ana J. Wayne/Orange Cnty Airport (SNA) to Chicago O'Hare Intl Airport (ORD)||$182|
|Ontario Airport (ONT) to Chicago O'Hare Intl Airport (ORD)||$290|
|Ontario Airport (ONT) to Chicago Midway Airport (MDW)||$243|
|Juneyao Airlines||PriceFrom $12||Free Cancellation||Rating|
|Frontier||PriceFrom $66||Free Cancellation||Rating|
Likes: price Dislikes: Courteousness, Integrity, Safety (gate agent gave my seat away then blamed me, the security door was closed. She stated that I checked in too late although I had a boarding pass and lied that there were no more seats. Fortunately, an older gate agent was present and took action to print a ticket for me and they reopened the security door. Then they rushed me to get my stuff as I tried to meet the demand. It is clear to me that was indeed happened is that they already calculated the weight as there were additional seats. The problem was resolved and I had an enjoyable flight, but not without unneeded stress.).
1 / 10
|Spirit Airlines||PriceFrom $109||Free Cancellation||Rating|
Unexpected charges, bad seats, bad employes, horrible flight.
1 / 10
|American Airlines||PriceFrom $137||Free Cancellation||Rating|
So this review is related to some things related more to the airports and higher-level stuff. One issue was that this was the second leg of an international flight for me. It was an American Airlines codeshare with Finnair. American Airlines had alerted Finnair about some additional security measures but did not mention the fact that any liquids purchased at the Duty Free stores en route would NOT be allowed through security at Chicago when transferring to the domestic terminal. Passengers did have the option of placing those liquids in their checked baggage but what if that wasn't an option? Another issue is just related to ORD, it was a zoo. I know that's beyond what this review is about but big airlines like American have some part to play in how the airport operates.
1 / 10
|Delta||PriceFrom $147||Free Cancellation||Rating|
This is another disease as if you have the Internet, you are ordinary deceivers!
1 / 10
|United Airlines||PriceFrom $229||Free Cancellation||Rating|
A very long way to the connecting flight and no update on the delays were frustrating! It was messy at Frankfurt Airport. Thank God for the masks, we couldn't smell each other after all the running and rushing around.
1 / 10
Southwest flight deals from Ontario to Chicago start from $418 round-trip. Over the 13 Southwest flights for this route in a normal week, average airfare is usually $499 round-trip - but some users have found much cheaper deals with momondo.
Due to the global impact of COVID-19, some of our airline partners operating flights from Ontario to Chicago, such as Frontier, American Airlines, and United Airlines may have put in place flexible cancellation policies. Use our site to search for all of the airlines offering this flexibility to you.
The straight-line distance from Ontario to Chicago is 1710.7 mi. 3h 56m is a normal flight duration for this route.
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Chicago. momondo saves you time and could save you money on your trip.
Yes. All flights to Chicago from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.
Once you have performed a search for Ontario to Chicago flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
Of course. momondo tracks the price of Ontario to Chicago flights. All you need is a valid email address and we will do the rest; it is that quick and easy.