Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport from $136
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 O'Hare Intl Airport departing on 5/18. 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 Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport
Our best Air Canada deals on Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flight tickets
WestJet flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport
Our best WestJet 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 typical price of a round-trip flight between Montreal Pierre Elliott Trudeau Intl Airport and Chicago O'Hare Intl Airport?
What is the cheapest month to fly to Chicago O'Hare Intl Airport?
The month of September 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 $369.
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 $409. This is often the case because there is less demand to fly during this day of the week. On the other hand, Monday is the most expensive day to depart from Montreal Pierre Elliott Trudeau Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $561.
What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?
Flying to Chicago O'Hare Intl Airport from Montreal Pierre Elliott Trudeau Intl Airport at noon is the least expensive time of day to depart. momondo users have found prices as low as $455 when looking at flights departing at noon. Try not to purchase tickets in the evening because they tend to be around $597. Of course, these prices can vary depending on the time of year and what airport you fly to.
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 13 weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $404 when searching 13 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 $323 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.
What is the cheapest airline that flies from Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Intl?
Air Canada, American Airlines, and Delta are the most popular carriers operating from Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Intl
What airlines fly to Chicago O'Hare Intl Airport?
Air Canada, American Airlines and United 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 69% of people opting to fly with this airline when traveling 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?
The number of flights available between Montreal Pierre Elliott Trudeau Intl Airport and Chicago O'Hare Intl Airport is 22 per day as of April 2025. The most frequent departure time is 6:00AM, with 54% of daily flights leaving at noon.
How many flights depart from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport on average per week?
The number of flights available between Montreal Pierre Elliott Trudeau Intl Airport and Chicago O'Hare Intl Airport is 156 per week as of April 2025. The most frequent departure day is Wed, with 17% of weekly flights leaving 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?
Chicago O'Hare Intl is 744.9 mi away from Montreal Pierre Elliott Trudeau Intl. 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 were last updated today.
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 April 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 a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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 required travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chicago O'Hare Intl Airport. We recommend that you seek guidance from your airline or a reliable 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 flights between Montreal Pierre Elliott Trudeau Intl Airport and Chicago O'Hare Intl Airport, the leading plane model is Embraer 175 (Enhanced Winglets), making up 24.65% of the total bookings. Other popular models include Embraer 175 with 14.87%, Airbus A321-100/200 with 9.69%, and Boeing 737 MAX 8 with 8.62%.
What is the most popular airline from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport is Air Canada (69% of total bookings). The next most popular airlines are American Airlines (21%), United Airlines (6%), and WestJet (4%).
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 $112 | Free Cancellation | Rating 7.4 8,619 reviews | |||
| PriceFrom $253 | Free Cancellation | Rating 7.0 9,035 reviews | |||
| PriceFrom $282 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $334 | Free Cancellation | Rating 7.2 2,795 reviews |
United Airlines Flights From Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport
United Airlines flight deals from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport start from $112 round-trip. Over the 38 United Airlines flights for this route in a normal week, average airfare is usually $495 round-trip - but some users have found much cheaper deals with momondo.
American Airlines Flights From Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport
Across 10,000 American Airlines reviews on momondo, the average score is 7.2/10. American Airlines flies from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport about 4 times each week, with ticket deals ranging from $282 to $387. Price data is based on momondo searches in the last 72 hours.
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Why should I use momondo to find a flight deal from Montreal to Chicago?
Finding the right flight to Chicago from Montreal is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Chicago quick and easy, saving you time and money.
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?
Once all potential Montreal to Chicago flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Montreal to Chicago right now. Can momondo alert me if prices change?
Price alerts on flights to Chicago from Montreal are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.