Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago from C$ 139
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago departing on 14/9. 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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American Airlines flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport
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Delta flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport
Our best Delta deals on Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flight tickets
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How to get the cheapest flight ticket from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport
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 Chicago O'Hare Intl Airport?
In general, September is the cheapest month to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 422. The month of June is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Montreal Pierre Elliott Trudeau Intl Airport averaging around C$ 481.
What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?
The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Thursday when prices can be found for as low as C$ 742. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport for around C$ 992.
What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?
In the afternoon is the cheapest time of day to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport when you can find flight prices for as low as C$ 792. Flying to Chicago O'Hare Intl Airport in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 869 on average. Flights to Chicago O'Hare Intl Airport from Montreal Pierre Elliott Trudeau Intl Airport at noon are generally more expensive because this time of day is more convenient for travellers’ schedules.
What is the cheapest Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Intl flight route?
Fly from Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Intl for the best Montreal Pierre Elliott Trudeau Intl - Chicago O'Hare Intl flight prices
How far in advance should I book a flight to Chicago O'Hare Intl Airport?
You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Montreal Pierre Elliott Trudeau Intl Airport when booking 24 weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around C$ 532 when searching 24 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Montreal Pierre Elliott Trudeau Intl Airport for as low as C$ 287 on momondo.
What cabin class options are available on Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Intl flights?
There are 4 cabin classes available to choose from on Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flights?
You could potentially save up to 6% on your flight if you consider stops on a Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flight.
How have Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flight prices changed over time?
As of June 2025, prices for Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flights are approximately 27% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Intl?
Air Canada, Delta, and American Airlines are the most popular carriers operating from Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Intl
Which airlines fly to Chicago O'Hare Intl Airport?
Air Canada, United Airlines and American Airlines are the top three most popular airlines that fly to Chicago O'Hare Intl Airport from Montreal Pierre Elliott Trudeau Intl Airport according to our data. Air Canada is the first choice among our users, with 87% of people opting to fly with this airline when travelling to Chicago O'Hare Intl Airport. Keep in mind that there are 4 different airlines that fly to Chicago O'Hare Intl Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport on average per day?
28 flights are operational daily from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport as of June 2025. The most popular departure time for this route is 9:00a.m., with 50% of flights per day taking off in the afternoon.
How many flights depart from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport on average per week?
As of June 2025, there are 201 flights per week flying from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport. The most common day of the week flights depart is Wed, with 15% of flights taking off on this day.
When to book flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport
Cheap Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport (YUL to ORD) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport
How far is Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Intl by plane?
A flight from Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Intl will travel around 1198.8 km. Flights usually cover this in 2h 26m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?
Prices for flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?
There are 4 operators available for flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport as of June 2025.
How old do you have to be to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?
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 Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport.
What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?
The travel and health documents you'll need for your trip to Chicago O'Hare Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago O'Hare Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport is Embraer 175 (Enhanced Winglets) (27.95% of total bookings). The next most popular plane models are Embraer 175 (17.23%), Boeing 737 MAX 8 (11.26%), and Airbus A220-300 (8.56%).
What is the most popular airline from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?
Based on momondo bookings for flights between Montreal Pierre Elliott Trudeau Intl Airport and Chicago O'Hare Intl Airport, the leading airline is Air Canada, making up 87% of the total bookings. Other popular airlines include United Airlines with 6%, American Airlines with 4%, and WestJet with 3%.
Best airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport
Compare and see reviews for airlines that fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom C$ 314 | Free Cancellation | Rating 7.1 9,537 reviews | |||
| PriceFrom C$ 352 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom C$ 368 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom C$ 448 | Free Cancellation | Rating 7.2 2,868 reviews |
United Airlines Flights From Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport
United Airlines operates around 40 flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport every week. The average price of these flights found in the last 72 hours has been C$ 356, but momondo users have found United Airlines deals from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport from as low as C$ 258 round-trip. United Airlines has been scored 7.4/10 in 8,790 reviews.
American Airlines Flights From Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport
American Airlines is also a popular choice for this route. American Airlines flight deals for Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport start from as low as C$ 269 round-trip, depending on your selected dates, with average American Airlines deals seen on momondo around C$ 378. American Airlines operates 13 flights to Chicago O'Hare Intl Airport from Montreal Pierre Elliott Trudeau Intl Airport in an average week. Users have rated it 7.2/10 across 10,000 reviews.
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Why should I use momondo to find a flight deal from Montreal to Chicago?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Montreal to Chicago for you.
Can I find flights from Montreal to Chicago with flexible booking policies on momondo?
Flights from Montreal to Chicago with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Montreal to Chicago?
momondo helps you find the best flight between Montreal and Chicago 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 Montreal to Chicago right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Chicago, momondo offers a useful price alert feature which will track prices for flights to Chicago from Montreal and alert you when they change.