YUL - ORD

C$ 252 Find Cheap Flights from Montreal to Chicago O'Hare Airport – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
C$ 400
Typical prices: C$ 403-C$ 639
Porter Airlines
Sun 18/2Thu 22/2
YUL - ORD • 1 stop
Cheapest direct flights
C$ 417
Typical prices: C$ 403-C$ 650
Air Canada
Sat 15/12Sat 6/1
YUL - ORD • Direct
Advice from real travellers
United Economy Plus adds up to 15 cm more legroom; Priority Boarding helps bag space.
Air Canada Preferred Economy adds up to 10 cm legroom; bring entertainment on United.
Expert advice
+1
Expert advice
+1
Direct flights
You can fly direct with Air Canada, United Airlines, and American Airlines. Average duration is 2h 54m
Direct flights
+1
Direct flights
+1
When to book
in advance
Our data shows that travellers who book at least 26 weeks in advance save around 66% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 21% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg C$ 264 (round-trip)
Shortest trip • 4h 56m (one-way)
Insights
Insights
Start a new search
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We hope you enjoy your trip to Chicago O'Hare Intl Airport!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Montreal to Chicago (YUL-ORD)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Montreal to Chicago

Thu, 18 Feb - Mon, 22 Feb
Porter Airlines Logo
9:45 a.m. - 5:30 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl
8h 45m1 stop Toronto Island
Porter Airlines Logo
12:20 p.m. - 7:07 p.m.ORD  Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl
5h 47m1 stop Toronto Island
C$ 400Porter Airlines
1 day ago
Sun, 22 Nov - Fri, 27 Nov
Air Canada Logo
10:10 a.m. - 3:38 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl
6h 28m1 stop Toronto Pearson Intl
Air Canada Logo
10:15 a.m. - 8:53 p.m.ORD  Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl
9h 38m2 stops Toronto Pearson Intl Ottawa
C$ 407Air Canada
3+ days ago
Thu, 19 Nov - Tue, 24 Nov
Air Canada Logo
8:50 a.m. - 3:38 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl
7h 48m2 stops Ottawa Toronto Pearson Intl
Air Canada Logo
12:50 p.m. - 7:00 p.m.ORD  Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl
5h 10m1 stop Toronto Pearson Intl
C$ 408Air Canada
3+ days ago
Tue, 10 Nov - Tue, 17 Nov
Delta Logo
7:00 a.m. - 12:20 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl
6h 20m1 stop Atlanta Hartsfield-Jackson
Delta Logo
12:38 p.m. - 11:30 p.m.ORD  Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl
9h 52m1 stop Minneapolis St Paul
C$ 421Delta
3+ days ago
Tue, 15 Dec - Sun, 27 Dec
Delta Logo
7:00 a.m. - 12:24 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl
6h 24m1 stop Atlanta Hartsfield-Jackson
Delta Logo
1:26 p.m. - 11:29 p.m.ORD  Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl
9h 03m1 stop Detroit Metropolitan Wayne County
C$ 421Delta
3+ days ago
Wed, 9 Dec - Wed, 16 Dec
Porter Airlines Logo
12:41 p.m. - 7:09 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl
7h 28m1 stop Atlanta Hartsfield-Jackson
Porter Airlines Logo
12:15 p.m. - 7:06 p.m.ORD  Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl
5h 51m1 stop Toronto Island
C$ 421Porter Airlines
3+ days ago
Wed, 25 Nov - Sat, 28 Nov
American Airlines Logo
12:10 p.m. - 2:15 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl
3h 05mdirect
American Airlines Logo
8:08 a.m. - 11:26 a.m.ORD  Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl
2h 18mdirect
C$ 425American Airlines
3+ days ago
Fri, 27 Nov - Sun, 6 Dec
United Airlines Logo
6:00 a.m. - 8:00 a.m.YUL  Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl
3h 00mdirect
United Airlines Logo
10:37 a.m. - 2:00 p.m.ORD  Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl
2h 23mdirect
C$ 445United Airlines
3+ days ago
Sun, 22 Nov - Fri, 27 Nov
United Airlines Logo
6:00 a.m. - 8:00 a.m.YUL  Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl
3h 00mdirect
United Airlines Logo
5:54 p.m. - 9:17 p.m.ORD  Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl
2h 23mdirect
C$ 445United Airlines
2 days ago
Thu, 12 Nov - Sun, 15 Nov
American Airlines Logo
12:10 p.m. - 2:15 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl
3h 05mdirect
American Airlines Logo
5:19 a.m. - 1:44 p.m.ORD  Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl
7h 25m1 stop Charlotte Douglas
C$ 446American Airlines
3+ days ago
Booking Insights

Price, demand, and travel trends for Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?

Round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport typically range from C$ 403 to C$ 639. The lowest price found in the past 5 days was C$ 400, on Porter Airlines.

What's the cheapest day of the week to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport. It's 6% cheaper than the average day, while Monday is the most expensive, with prices 37% higher.

What is the cheapest month to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?

•April is the cheapest month to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport at C$ 399 round-trip.
•December (C$ 599) and July (C$ 547) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 50% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport the cheapest?

Flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport are cheapest 26 weeks before departure. Booking in this window typically costs about 66% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Montreal to Chicago

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on ANA

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Stefanie Waldek

Stefanie Waldek

Expert on Air Canada, United Airlines and ORD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Mark Stachiew

Mark Stachiew

Expert on YUL

Mark Stachiew has been exploring the world and writing about it for more than 30 years. His travel stories have appeared in numerous newspapers, magazines and online publications in Canada, the United States and beyond.

Key details for Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flights

Low season

February

Cheapest flight

C$ 252
Beat the crowds with an average 44% drop in traveller numbers.
The most popular month to fly with an average 25% increase in traveller numbers.
One-way flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport

When to book flights from Montreal to Chicago

Are your dates flexible? Find out the best times to travel from Montreal to Chicago based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Flights from Montreal to Chicago: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from Montreal to Chicago 
Steven AnthonyFlew with United AirlinesAug 2024
Don't take the 6am flight. Airport security and customs only open at 430am. So if you show up the recommended 3 hours before, you're waiting in line for nothing
Verified travelerFlew with United AirlinesApr 2024
Come prepared with your own entertainment as the flight did not offer in flight entertainment

Your Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • What are the earliest and latest flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?

    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 8:54 am
    • Latest: departs at 6:10 pm and lands at 9:04 pm.

    The flight takes about 2h 54m.

  • Which cabin classes can I book on flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?

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

    • Economy Class
    • Business Class

  • How long does a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport take?

    A direct flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport takes 2h 54m, covering 1,929 km.

  • Do I need a passport to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?

    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.

  • How much should I expect to pay for a Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flight?

    Round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport range from C$ 403 to C$ 639, with an average of C$ 502 over the past 12 months. Anything below C$ 403 counts as a good deal.

  • How expensive are last-minute Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flights?

    Last-minute fares on this route (booked within two weeks of departure) run 52% above the C$ 502 route average. Book 26 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?

    On this route, layover flights are cheaper than direct options on average. Layover fares average C$ 264 round-trip via Philadelphia (PHL), compared to C$ 508 for direct.

  • What is the standard checked bag allowance on flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge C$ 35–C$ 140 for the first checked bag in economy. Premium fares and elite status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?

    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.

  • How are flight departures from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport spread across the day?

    Afternoon is the busiest departure period on Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flights, with 50% leaving in that window. Morning departures account for 34%, Evening flights for 16%, and Night flights for 0%.

  • Have flight prices from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about C$ 400 to C$ 2,253. That means the highest observed fare was about 6x higher than the lowest one.

  • Which airlines offer Wi-Fi on Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flights?

    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

    Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

  • How are flight prices from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport looking right now?

    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 C$ 261, which is 24% below the typical average for this route.

  • What car rental options are available at Chicago O'Hare Intl Airport (ORD)?

    Chicago O'Hare Intl Airport (ORD) hosts 5 major car rental companies, with daily rates averaging C$ 89 for economy cars. Top options include:

    • Routes Car & Truck Rentals
    • Europcar
    • Hertz
    • Ace
    • Dollar

  • Which airports can I use when flying from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?

    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).

  • Which airports do connecting flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport pass through?

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

    • Toronto Pearson Intl (YYZ) – 37% of one-stop connections
    • Toronto Island (YTZ) – 33% of one-stop connections
    • Detroit Metropolitan Wayne County (DTW) – 21% of one-stop connections
    • New York LaGuardia (LGA) – 3% of one-stop connections

  • Can I save money by using flexible dates for flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?

    Yes. Flexible dates can save you up to 32% on flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport. Thursday is the cheapest departure day at C$ 476 round-trip on average, while Monday is the most expensive at C$ 690, a difference of C$ 214.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • Which airlines fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?

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

    • Air Canada
    • United Airlines
    • American Airlines

  • How much time can I save by choosing a different layover airport when travelling from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?

    Flying via Philadelphia (PHL) gives the shortest average 1-stop total travel time at 4h 54m, compared with 4h 56m via Toronto Pearson Intl (YYZ) and 5h 07m via Toronto Island (YTZ).

  • What is the time difference between Montreal Pierre Elliott Trudeau Intl Airport and Chicago O'Hare Intl Airport?

    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.

  • Which popular places can I visit in Chicago O'Hare Intl Airport?

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

  • Which airlines offer extra legroom and free seat selection on Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flights?

    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 extra legroom; offers free seat selection
    • American Airlines: offers free seat selection

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

  • Which airlines include bags at no extra cost on Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flights?

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

    • Air Canada: a carry-on bag and a checked bag in Economy Class
    • United Airlines: a carry-on bag and a checked bag in Economy Class
    • American Airlines: a carry-on bag and a checked bag in Economy Class

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

Your guide to booking Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure and avoid flying on Monday. On this route, Thursday flights average C$ 476, about C$ 214 less than Monday fares (31% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 26 weeks before you fly. On this route, that window historically saves about 66% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport trip for April. Fares historically average C$ 399 round-trip in that month – typically C$ 200 less than the most expensive month, which is December (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Philadelphia Airport (PHL) can be cheaper than flying direct. The cheapest layover option averages C$ 264 round-trip on this route – about C$ 244 less than direct flights (based on the last 12 months).

Prefer to fly direct from Montreal to Chicago O'Hare Airport?

 
Find which airlines fly direct from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport, which days they fly and book direct flights.

Direct departures

Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Intl

Monday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

Tuesday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

Wednesday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

Thursday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

Friday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

Saturday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

Sunday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

See more nonstop flights

Direct returns

Chicago O'Hare Intl to Montreal Pierre Elliott Trudeau Intl

Monday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

Tuesday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

Wednesday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

Thursday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

Friday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

Saturday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

Sunday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

See more nonstop flights

More options for your flight from Montreal to Chicago

Complete your trip to Chicago with a hotel stay or car rental