$166 Find Cheap Flights from Montreal to Chicago O'Hare Airport - Compare and Save

Among airlines operating Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flights:

• Air Canada: offers extra legroom; offers free seat selection
• United Airlines: offers free seat selection
• American Airlines: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

3 airlines operate flights between Montreal Pierre Elliott Trudeau Intl Airport and Chicago O'Hare Intl Airport. The airlines offering nonstop flights on this route include:

• Air Canada
• United Airlines
• American Airlines

Flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport usually depart from Montreal Pierre Elliott Trudeau Intl (YUL) and arrive at Chicago O'Hare Intl (ORD).

Here are some options for this route, based on selected ticket types and cabin classes:

• Air Canada: a cabin bag and a checked bag in Economy Class
• American Airlines: a cabin bag and a checked bag in Economy Class
• United Airlines: a cabin bag and a checked bag in Business Class

Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

Three cabin classes are available on flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport:

• Economy Class
• Business Class
• First Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $189 round-trip via Philadelphia (PHL), compared to $360 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $25–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Embraer 175 (Enhanced Winglets) family is used most often on this route, operated mainly by United Airlines and Air Canada. Other aircraft seen on the route include Embraer 175 variants.

One-stop flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport most commonly connect through:

• Toronto Pearson Intl (YYZ) - 36% of one-stop connections
• Toronto Island (YTZ) - 31% of one-stop connections
• Detroit Metropolitan Wayne County (DTW) - 22% of one-stop connections
• New York LaGuardia (LGA) - 3% of one-stop connections

Toronto Pearson Intl (YYZ) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 31% on the Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport route. Thursday is the cheapest departure day at $328 round-trip on average, while Monday is the most expensive at $470, a difference of $142. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Afternoon is the busiest departure period on Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flights, with 43% of flights leaving in that window. Morning departures account for 29%, evening flights for 28%, and night flights for 0%.

Some of the most popular sights in Chicago O'Hare Intl Airport are Magnificent Mile, Grant Park and River North. These are among the most viewed places in Chicago O'Hare Intl Airport on KAYAK.

These are the earliest and latest flight times available from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport:

• Earliest: departs at 6:00 am and lands at 8:46 am
• Latest: departs at 6:30 pm and lands at 9:16 pm.

The flight takes about 2h 46m.

Last-minute fares on this route - booked within 2 weeks of departure - run 64% above the route average of $356. Book 26 weeks before departure for the lowest fares.

A nonstop flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport takes 2h 46m, covering 745 miles.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $281 to $1,383. That means the highest observed fare was about 5x higher than the lowest one.

One-way fares from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport are currently lower than usual. Average one-way flight prices are about $177, which is 26% below the typical average for this route.

Flying via Toronto Pearson Intl (YYZ) gives the shortest average 1-stop total travel time at 4h 54m, compared with 4h 54m via Philadelphia (PHL) and 5h 01m via Toronto Island (YTZ).

Chicago O'Hare Intl Airport is 1 hour behind Montreal Pierre Elliott Trudeau Intl Airport (Central Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Chicago O'Hare Intl Airport (ORD) hosts 5 major car rental companies, with daily rates starting from around $17 for economy cars. Top options include:
• Routes Car & Truck Rentals
• Europcar
• Hertz
• Dollar
• Ace

Round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport range from $283 to $461, with an average of $356 over the past 12 months. Anything below $283 counts as a good deal.

Four airlines offer in-flight Wi-Fi on Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flights:

• • Air Canada
• • United Airlines
• • American Airlines
• • Finnair