Cheap flights from Illinois to Ontario from C$ 78
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Ontario departing on 7/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Air Canada flights from Illinois to Region of Ontario
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United Airlines flights from Illinois to Region of Ontario
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How to get the cheapest flight ticket from Illinois 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
What is the cheapest month to fly to Region of Ontario?
In general, July is the cheapest month to fly from Illinois to Region of Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 363. If you are unable to visit Region of Ontario during the month of July, then departing from Illinois during the month April is also very affordable. Most momondo users find prices during this month for around C$ 369.
What is the cheapest day to depart on your flight to Region of Ontario?
The cheapest day to depart from Illinois to Region of Ontario is on a Saturday. Travellers who choose to depart for Region of Ontario on a Saturday will often find tickets for as low as C$ 387. The most expensive day to fly to Region of Ontario is Sunday, with ticket prices averaging around C$ 548.
What is the cheapest time of day to depart on your flight to Region of Ontario?
Our most recent data shows that the best time of day to fly to Region of Ontario is in the evening. Flights from Illinois to Region of Ontario during this time can be as low as C$ 382. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 462 on average. Flights to Region of Ontario from Illinois in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.
What is the cheapest Illinois to Ontario flight route?
Fly from Chicago Midway to Toronto Island for the best Illinois - Ontario flight prices
How far in advance should I book a flight to Region of Ontario?
You are more likely to see cheaper flights to Region of Ontario from Illinois when booking 16 weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around C$ 432 when searching 16 weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Region of Ontario from Illinois for as low as C$ 226 on momondo.
What cabin class options are available on Illinois to Ontario flights?
There are 3 cabin classes available to choose from on Illinois to Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
How many flights depart from Illinois to Region of Ontario on average per day?
As of June 2025, there are 100 flights per day flying from Illinois to Region of Ontario. The most common time of day flights depart is 10:00a.m., with 38% of flights taking off at noon.
How many flights depart from Illinois to Region of Ontario on average per week?
As of June 2025, there are 703 flights per week flying from Illinois to Region of Ontario. The most common day of the week flights depart is Wed, with 16% of flights taking off on this day.
Cheap Illinois to Region of Ontario flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Illinois to Region of Ontario
Best price found | C$ 78 |
|---|---|
Fastest flight time | 1h 38m |
Direct flights | Every day |
Airports in Region of Ontario | 3 airports |
When did momondo last update prices for flights from Illinois to Ontario?
Prices for flights from Illinois to Ontario are updated daily.
How many operators does momondo search for flights from Illinois to Ontario?
There are 2 operators available for flights from Illinois to Ontario as of June 2025.
How old do you have to be to fly from Illinois to Ontario?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Ontario.
What documentation or ID do you need to fly to Ontario?
The travel and health documents required for your trip to Ontario can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Illinois to Region of Ontario?
Based on momondo bookings for flights between Illinois and Region of Ontario, the leading plane model is De Havilland (Bombardier) DHC-8-400 Dash 8Q, making up 19.88% of the total bookings. Other popular models include Embraer 175 (Enhanced Winglets) with 18.95%, Embraer 175 with 7.49%, and Airbus A220-300 with 6.47%.
Best airlines flying from Illinois to Region of Ontario
Compare and see reviews for airlines that fly from Illinois to Region of Ontario with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom C$ 200 | Free Cancellation | Rating 7.1 9,568 reviews | |||
| PriceFrom C$ 241 | Free Cancellation | Rating 7.4 8,810 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Illinois to Ontario?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Illinois to Ontario . Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Illinois to Ontario with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Ontario from Illinois with this policy.
How can momondo help me find flights from Illinois to Ontario?
momondo provides multiple filters to help you find the best flight to Ontario from Illinois. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Illinois to Ontario right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Illinois to Ontario flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.