ORD - YUL

$137 Find Cheap Flights from Chicago O'Hare Airport to Montreal - Compare and Save

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Everything you should know

Cheapest round-trip
$301
Typical prices: $339-$533
Air Canada
Wed 12/5Wed 12/5
ORD - YUL • 1 stop
Cheapest non-stop
$336
Typical prices: $342-$542
Air Canada
Wed 12/12Thu 12/13
ORD - YUL • Non-stop
Advice from real travelers
Air Canada Preferred Economy adds up to 4 extra inches of legroom for a fee.
United Economy Plus offers up to 6 more inches; Priority Boarding helps bin space.
Expert advice
+1
Expert advice
+1
Nonstop flights
Every day
You can fly direct with Air Canada, United Airlines and American Airlines. Average duration is 2h 20m
Direct flights
+1
Direct flights
+1
Avoid delays
American Airlines
Most punctual • 87% on-time
Morning
Best time • Fewest delays
Insights
Insights
When to book
16 weeks
in advance
Our data shows that travelers who book at least 16 weeks in advance save around 52% compared to booking last minute.
Insights
Insights
When to travel
April
Cheapest • 26% price drop
August
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Washington, D.C. Dulles Intl (IAD)
Cheapest • Avg $261 (round-trip)
Toronto Pearson Intl (YYZ)
Shortest trip • 4h 51m (one-way)
Insights
Insights
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We hope you love your trip to Montreal Pierre Elliott Trudeau Intl Airport!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from O'Hare Intl to Montreal (ORD-YUL)

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

Recent round-trip flight deals from O'Hare Intl to Montreal

Sat, Dec 5 - Sat, Dec 5
Air Canada Logo
8:45 am - 2:25 pmORD  Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl
4h 40m1 stop Toronto Pearson Intl
Air Canada Logo
6:10 pm - 7:52 pmYUL  Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl
2h 42mnonstop
$301Air Canada
Tue, Dec 1 - Tue, Dec 1
Air Canada Logo
8:45 am - 3:25 pmORD  Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl
5h 40m1 stop Toronto Pearson Intl
Air Canada Logo
6:10 pm - 7:52 pmYUL  Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl
2h 42mnonstop
$301Air Canada
Wed, Jan 13 - Wed, Jan 20
Porter Airlines Logo
12:20 pm - 7:07 pmORD  Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl
5h 47m1 stop Toronto Island
Porter Airlines Logo
12:40 pm - 5:30 pmYUL  Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl
5h 50m1 stop Toronto Island
$311Porter Airlines
Fri, Feb 5 - Sun, Feb 7
Porter Airlines Logo
12:20 pm - 7:07 pmORD  Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl
5h 47m1 stop Toronto Island
Porter Airlines Logo
12:40 pm - 5:30 pmYUL  Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl
5h 50m1 stop Toronto Island
$315Porter Airlines
Mon, Dec 28 - Mon, Jan 4
Multiple Airlines Logo
12:15 pm - 7:06 pmORD  Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl
5h 51m1 stop Toronto Island
Multiple Airlines Logo
2:10 pm - 7:58 pmYUL  Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl
6h 48m1 stop Toronto Pearson Intl
$324Multiple Airlines
Fri, Jan 22 - Sat, Jan 30
Multiple Airlines Logo
6:59 am - 7:19 pmORD  Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl
35h 20m2 stops Fort Lauderdale Toronto Pearson Intl
Multiple Airlines Logo
12:40 pm - 5:30 pmYUL  Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl
5h 50m1 stop Toronto Island
$345Multiple Airlines
Thu, Jan 14 - Tue, Jan 19
United Airlines Logo
10:33 am - 2:00 pmORD  Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl
2h 27mnonstop
United Airlines Logo
4:45 pm - 6:45 pmYUL  Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl
3h 00mnonstop
$366United Airlines
Thu, Jan 21 - Wed, Jan 27
United Airlines Logo
10:33 am - 2:00 pmORD  Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl
2h 27mnonstop
United Airlines Logo
6:00 am - 8:07 amYUL  Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl
3h 07mnonstop
$366United Airlines
Mon, Dec 7 - Thu, Dec 10
American Airlines Logo
8:08 am - 11:28 amORD  Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl
2h 20mnonstop
American Airlines Logo
12:08 pm - 2:13 pmYUL  Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl
3h 05mnonstop
$366American Airlines
Sat, Dec 5 - Tue, Dec 8
American Airlines Logo
8:08 am - 11:28 amORD  Chicago O'Hare Intl-YUL Montreal Pierre Elliott Trudeau Intl
2h 20mnonstop
American Airlines Logo
12:08 pm - 2:13 pmYUL  Montreal Pierre Elliott Trudeau Intl-ORD Chicago O'Hare Intl
3h 05mnonstop
$366American Airlines
Booking Insights

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

Round-trip flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport typically range from $339 to $533. The lowest price found in the past 5 days was $301, on Air Canada.

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

Based on deals KAYAK users found in the last 12 months, Saturday is the cheapest day of the week to fly from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport. It’s 10% cheaper than the average day, while Thursday is the most expensive, with prices 7% higher.

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

•April is the cheapest month to fly from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport at $308 round-trip.
•December ($532) and November ($467) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 72% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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

Flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport are cheapest 16 weeks before departure. Booking in this window typically costs about 52% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals
Expert advice

Expert advice for your flight from O'Hare Intl to Montreal

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

Read more
Brandon Schultz

Brandon Schultz

Expert on YUL

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

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

Low season

January

Cheapest flight

$137
Beat the crowds with an average 41% drop in travelers.
The most popular month to fly with an average 45% increase in travelers.
One-way flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport

When to book flights from O'Hare Intl to Montreal

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

Flights from O'Hare Intl to Montreal: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from O'Hare Intl to Montreal 
MonyeeFlew with United AirlinesSep 2026
Chicago is a large airport so it takes time to commute from one gate to another.
ScottFlew with Air CanadaJun 2026
Make sure you have enough time between connecting flights so ½ of your baggage doesn't miss the flight and take another 24hrs to show up
valerieFlew with Air CanadaJan 2025
“Meal” usually means more than a light snack. I thought what they served was an appetizer not the total meal. So I’d eat before or bring food.

Your Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau 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 Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

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

    • Earliest: departs at 7:05 am and lands at 9:25 am
    • Latest: departs at 5:54 pm and lands at 8:14 pm.

    The flight takes about 2h 20m.

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

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

    • Economy Class
    • Business Class
    • First Class

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

    A nonstop flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport takes about 2h 20m, covering 745 miles.

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

    Round-trip flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport range from $339 to $533, with an average of $414 over the past 12 months. Anything below $339 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 68% above the $414 route average. Book 16 weeks before departure for the lowest fares.

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

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $261 round-trip via Washington, D.C. Dulles Intl (IAD), compared to $421 for nonstop.

  • How does on-time performance compare across airlines flying from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

    American Airlines is slightly above the route average for timely arrivals, while United Airlines has a lower on-time arrival rate. On-time arrival rates on Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport flights are:

    • American Airlines: 87% on time
    • United Airlines: 83% on time
    • Air Canada: 72% on time

    Overall, flights on this route are punctual 79% of the time on average.

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

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$100 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 Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

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

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

    Morning is most often the busiest departure period on Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport flights, with 51% of flights leaving in that window. Afternoon departures account for 33%, and evening flights for 16%.

  • Have flight prices from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau 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 $301 to $1,657. That means the highest observed fare was about 6x higher than the lowest one.

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

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

    • Air Canada
    • United Airlines
    • American Airlines
    • Porter Airlines

    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 Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport looking right now?

    One-way fares from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport are currently lower than usual. Average one-way flight prices are about $147, which is 35% below the typical average for this route.

  • What car rental options are available at Montreal Pierre Elliott Trudeau Intl Airport (YUL)?

    Montreal Pierre Elliott Trudeau Intl Airport (YUL) hosts 5 major car rental companies, with daily rates averaging $52 for economy cars. Top options include:

    • Routes Car & Truck Rentals
    • Alamo
    • Thrifty
    • Hertz
    • Avis

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

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

  • What time of day has the fewest delays on flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

    Morning flights have the fewest delays on this route, while night departures tend to have the most.

  • At what point is a flight considered delayed from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport route, 21% of flights were delayed in the past 3 months, with delays averaging 2h 19m.

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

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

    • Toronto Island (YTZ) - 44% of one-stop connections
    • Toronto Pearson Intl (YYZ) - 32% of one-stop connections
    • Detroit Metropolitan Wayne County (DTW) - 18% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 4% of one-stop connections

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

    Yes. Flexible dates can save you up to 16% on flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport. Saturday is the cheapest departure day at $376 round-trip on average, while Thursday is the most expensive at $446, a difference of $70.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

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

    3 airlines currently operate flights between Chicago O'Hare Intl Airport and Montreal Pierre Elliott Trudeau Intl Airport, you can choose from:

    • Air Canada
    • United Airlines
    • American Airlines

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

    Flying via Toronto Pearson Intl (YYZ) gives the shortest average 1-stop total travel time at 4h 51m, compared with 4h 58m via Toronto Island (YTZ) and 5h 09m via Detroit Metropolitan Wayne County (DTW).

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

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

  • What popular places can I visit in Montreal Pierre Elliott Trudeau Intl Airport?

    Some of the most popular sights in Montreal Pierre Elliott Trudeau Intl Airport are Centre Bell, Vieux-Port de Montréal and Palais des congres de Montreal. These are among the most viewed places in Montreal Pierre Elliott Trudeau Intl Airport on KAYAK.

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

    The following airlines offer free seat selection on this route:

    • Air Canada
    • United Airlines
    • American Airlines
    • Porter Airlines

    Availability depends on fare class.

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

    Air Canada, United Airlines and American Airlines offer extra legroom on this route. Availability can vary by aircraft type and fare class.

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

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

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

Your guide to booking Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau 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 Saturday departure and avoid flying on Thursday. On this route, Saturday flights average $376, about $70 less than Thursday fares (16% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 16 weeks before you fly. On this route, that window historically saves about 52% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport trip for April. Fares historically average $308 round-trip in that month - typically $224 less than the most expensive month, which is December (based on the last 12 months).
  • For the best chance of arriving on time, fly with American Airlines. Over the past three months, 87% of American Airlines flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport arrived on time, slightly above the route average of 79%. When flights on this route arrive late, they're delayed by an average of 2h 19m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • If you have the time, taking a 1-stop flight through Washington, D.C. Dulles Intl Airport (IAD) can be cheaper than flying direct. The cheapest layover option averages $261 round-trip on this route - about $161 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Montreal Pierre Elliott Trudeau Intl Airport.

    • Sheraton Montreal Airport Hotel
    • Aloft Montreal Airport
    • Novotel Montréal Aéroport

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

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

Direct departures

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 direct flights

Direct returns

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 direct flights

More options for your flight from O'Hare Intl to Montreal

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

Car rentals in Montreal
Hotels in Montreal
Vacations in Montreal