Cheap flights from Chicago O'Hare Intl Airport to Ontario from C$ 50
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 O'Hare Intl Airport to Ontario departing on 31/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Early arrival? Instantly customize your resultsTrusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Chicago O'Hare Intl Airport to Ontario
Cheap round-trip flights
Cheap one-way flights
Cheap last-minute flights
Cheap direct flights
American Airlines flights from Chicago O'Hare Intl Airport to Region of Ontario
Our best American Airlines deals on Chicago O'Hare Intl Airport to Region of Ontario flight tickets
Air Canada flights from Chicago O'Hare Intl Airport to Region of Ontario
Our best Air Canada deals on Chicago O'Hare Intl Airport to Region of Ontario flight tickets
See travel insights to Ontario from
How to get the cheapest flight ticket from Chicago O'Hare Intl Airport 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, April is the cheapest month to fly from Chicago O'Hare Intl Airport to Region of Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 376. If you are unable to visit Region of Ontario during the month of April, then departing from Chicago O'Hare Intl Airport during the month May is also very affordable. Most momondo users find prices during this month for around C$ 389.
What is the cheapest day to depart on your flight to Region of Ontario?
The cheapest day to depart from Chicago O'Hare Intl Airport to Region of Ontario is on a Tuesday. Travellers who choose to depart for Region of Ontario on a Tuesday will often find tickets for as low as C$ 430. The most expensive day to fly to Region of Ontario is Sunday, with ticket prices averaging around C$ 546.
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 afternoon. Flights from Chicago O'Hare Intl Airport to Region of Ontario during this time can be as low as C$ 470. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 496 on average. Flights to Region of Ontario from Chicago O'Hare Intl Airport in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.
What is the cheapest Chicago O'Hare Intl to Ontario flight route?
Fly from Chicago O'Hare Intl to Ottawa for the best Chicago O'Hare Intl - 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 Chicago O'Hare Intl Airport when booking 23 weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around C$ 446 when searching 23 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Region of Ontario from Chicago O'Hare Intl Airport for as low as C$ 258 on momondo.
What cabin class options are available on Chicago O'Hare Intl to Ontario flights?
There are 3 cabin classes available to choose from on Chicago O'Hare Intl 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 Chicago O'Hare Intl Airport to Region of Ontario on average per day?
As of April 2025, there are 68 flights per day flying from Chicago O'Hare Intl Airport to Region of Ontario. The most common time of day flights depart is 6:00p.m., with 39% of flights taking off at noon.
How many flights depart from Chicago O'Hare Intl Airport to Region of Ontario on average per week?
476 flights are operational weekly from Chicago O'Hare Intl Airport to Region of Ontario as of April 2025. The most popular departure day for this route is Tue, with 20% of flights per week taking off on this day.
Cheap Chicago O'Hare Intl Airport to Region of Ontario flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Region of Ontario
Best price found | C$ 50 |
|---|---|
Fastest flight time | 1h 40m |
Direct flights | Every day |
Airports in Region of Ontario | 4 airports |
When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Ontario?
Prices for flights from Chicago O'Hare Intl Airport to Ontario are refreshed on a daily basis.
How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Ontario?
As of April 2025, there are 2 operators available to choose from for flights from Chicago O'Hare Intl Airport to Ontario.
How old do you have to be to fly from Chicago O'Hare Intl Airport 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 Chicago O'Hare Intl Airport 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 O'Hare Intl Airport to Region of Ontario?
Based on momondo bookings for flights between Chicago O'Hare Intl Airport and Region of Ontario, the leading plane model is Embraer 175 (Enhanced Winglets), making up 13.75% of the total bookings. Other popular models include De Havilland (Bombardier) DHC-8-400 Dash 8Q with 11.66%, Boeing 787-10 Dreamliner with 8.73%, and Boeing 787 Dreamliner with 8.05%.
Best airlines flying from Chicago O'Hare Intl Airport to Region of Ontario
Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Region of Ontario with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom C$ 183 | Free Cancellation | Rating 7.0 9,244 reviews | |||
| PriceFrom C$ 202 | Free Cancellation | Rating 7.4 8,696 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Chicago to Ontario?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario from Chicago.
Can I find flights from Chicago to Ontario with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Ontario from Chicago with this policy.
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.