Cheap flights from Chicago to Ontario from $81
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Ontario departing on 2/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Round-trip
1 adult
Economy
0 bags
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Cheap round-trip flights
These are some of the best round-trip flight deals from Chicago to Ontario that have been recently found on momondo from popular airlines, departing in the coming months.
Cheap one-way flights
Flying one-way? These are some of the best deals recently discovered on momondo for flights from Chicago to Ontario.
Cheap last minute flights
Planning a quick getaway from Chicago to Ontario? These are the last-minute flight deals available now.
Cheap direct flights
If you prefer a non-stop journey, check out our latest direct flight deals to Ontario, so you can enjoy a seamless trip without layovers.
Cheap bus & train deals from Chicago to Ontario
Find recent round-trip train or bus tickets from Chicago to Ontario.
All round-trip flight deals to Ontario
The cheapest plane tickets to Ontario found on KAYAK recently.
American Airlines flights from Chicago to Region of Ontario
Our best American Airlines deals on Chicago to Region of Ontario flight tickets
American Airlines![American Airlines]()
Jan 30![American Airlines]()
Feb 2
ORD8:11 amChicago O'Hare Intl
1h 40m
YYZ10:51 amToronto Pearson Intl
YYZ6:15 amToronto Pearson Intl
2h 15m
ORD7:30 amChicago O'Hare Intl
American Airlines![American Airlines]()
Jan 23![American Airlines]()
Feb 4
ORD9:49 amChicago O'Hare Intl
1h 41m
YYZ12:30 pmToronto Pearson Intl
YYZ11:31 amToronto Pearson Intl
2h 00m
ORD12:31 pmChicago O'Hare Intl
Delta flights from Chicago to Region of Ontario
Our best Delta deals on Chicago to Region of Ontario flight tickets
Delta![Delta]()
Jan 30![Delta]()
Feb 1
MDW2:08 pmChicago Midway
4h 01m
1 stop
YYZ7:09 pmToronto Pearson Intl
YYZ6:30 amToronto Pearson Intl
5h 06m
1 stop
MDW10:36 amChicago Midway
Delta![Delta]()
Feb 23![Delta]()
Mar 2
ORD6:45 amChicago O'Hare Intl
8h 24m
1 stop
YYZ4:09 pmToronto Pearson Intl
YYZ10:10 amToronto Pearson Intl
7h 03m
1 stop
ORD4:13 pmChicago O'Hare Intl
See travel insights to Ontario from
How to get the cheapest flight ticket from Chicago to Region of Ontario
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
Prices
Airlines
Other information
What is the cheapest month to fly to Region of Ontario?
The month of April is, on average, the cheapest month to fly to Region of Ontario from Chicago, with most prices found around $274. If you aren’t able to travel during the month of April, then book flights to Region of Ontario from Chicago during July instead. Flights to Region of Ontario in July, while not as cheap as those in April, still average around $277.
What is the cheapest day to depart on your flight to Region of Ontario?
According to our data, Tuesday is the cheapest day to fly to Region of Ontario from Chicago. The lowest ticket price found for a Tuesday departure recently was $292. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Chicago to Region of Ontario on a Monday will generally be more expensive and average around $311. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Region of Ontario?
According to our data, the cheapest time of day to fly to Region of Ontario is in the evening. momondo users have found flights departing from Chicago to Region of Ontario in the evening for as low as $278. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of $314.
What is the cheapest Chicago to Ontario flight route?
Fly from Chicago O'Hare Intl to Toronto Pearson Intl for the best Chicago - Ontario flight prices
How far in advance should I book a flight to Region of Ontario?
The ideal time to book your flight to Region of Ontario is 47 days in advance when prices tend to average $307. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Region of Ontario from Chicago for as low as $143 on momondo.
What cabin class options are available on Chicago to Ontario flights?
There are 4 cabin classes available to choose from on Chicago to Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Chicago to Ontario?
Porter Airlines, United Airlines, and Air Canada are the most popular carriers operating from Chicago to Ontario
What airlines fly to Region of Ontario?
Air Canada, United Airlines and American Airlines are the top three most popular airlines that fly to Region of Ontario from Chicago according to our data. Air Canada is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Region of Ontario. Keep in mind that there are 4 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.
How many flights depart from Chicago to Region of Ontario on average per day?
As of January 2025, 76 flights take off from Chicago and land in Region of Ontario each day. The most common flight departure time for this route is 6:00PM, with 38% of daily flights taking off in the afternoon.
How many flights depart from Chicago to Region of Ontario on average per week?
533 flights are operational weekly from Chicago to Region of Ontario as of January 2025. The most popular departure day for this route is Fri, with 15% of flights per week taking off on this day.
Cheap Chicago to Region of Ontario flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Chicago to Region of Ontario
Best Price Found | $81 |
|---|---|
Fastest flight time | 1h 35m |
Direct flights | Every day |
Airports in Region of Ontario | 3 airports |
When did momondo last update prices for flights from Chicago to Ontario?
Prices for flights from Chicago to Ontario refresh daily.
How many operators does momondo search for flights from Chicago to Ontario?
There are 4 operators available for flights from Chicago to Ontario as of January 2025.
How old do you have to be to fly from Chicago to Ontario?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Ontario.
What documentation or ID do you need to fly to Ontario?
The necessary travel and health documents for your Ontario trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Chicago to Region of Ontario?
Based on momondo bookings for flights between Chicago and Region of Ontario, the leading plane model is De Havilland (Bombardier) DHC-8-400 Dash 8Q, making up 13.89% of the total bookings. Other popular models include Boeing 737-800 with 13.79%, Embraer 175 (Enhanced Winglets) with 12.20%, and Embraer 170 with 10.06%.
Best airlines flying from Chicago to Region of Ontario
Compare and see reviews for airlines that fly from Chicago to Region of Ontario with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $122 | Free Cancellation | Rating 7.9 274 reviews | |||
| PriceFrom $122 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $122 | Free Cancellation | Rating 7.0 8,526 reviews | |||
| PriceFrom $148 | Free Cancellation | Rating 7.4 8,944 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Chicago to Ontario?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to Ontario. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Chicago to Ontario with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Chicago to Ontario flights to just show those with flexible booking policies.
How can momondo help me find flights from Chicago to Ontario?
momondo helps you find the best flight between Chicago and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Chicago to Ontario right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Chicago to Ontario flights. All you need is a valid email address and we will do the rest; it is that quick and easy.
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