ORD - YUL

$99 Find Cheap Flights from Chicago O'Hare Airport to Montreal

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from O'Hare Intl to Montreal departing on 4/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Montreal Pierre Elliott Trudeau Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Montreal, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Montreal, as well as popular online travel agencies
Travelers love KAYAK
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Everything you should know

Cheapest round-trip
$215
Overall average: $343
Air Canada
Sat 5/30Wed 6/3
ORD - YUL • Non-stop
Cheapest non-stop
$215
Typical prices: $284-$476
Air Canada
Thu 4/9Mon 4/13
ORD - YUL • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
United's Economy Plus offers 6 inches more legroom.
Expect long security lines at Chicago O'Hare Intl.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Air Canada
Cheapest • from $215 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 63% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 33% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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We hope you love your trip to Montreal!
Flight Deals
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Expert advice
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from O'Hare Intl to Montreal that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
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, May 30 - Wed, Jun 3
Air Canada Logo
11:05 am - 2:16 pm
ORD
-
YUL
2h 11mnonstop
Air Canada Logo
8:40 am - 10:18 am
YUL
-
ORD
2h 38mnonstop
$215Air Canada
Fri, Apr 10 - Tue, Apr 14
American Airlines Logo
8:46 pm - 1:52 pm
ORD
-
YUL
16h 06m
1 stop
American Airlines Logo
12:30 pm - 2:10 pm
YUL
-
ORD
2h 40mnonstop
$224American Airlines
Tue, Mar 17 - Tue, Mar 31
American Airlines Logo
8:23 am - 3:20 pm
ORD
-
YUL
5h 57m
1 stop
American Airlines Logo
3:45 pm - 5:45 pm
YUL
-
ORD
3h 00mnonstop
$225American Airlines
Tue, Mar 31 - Tue, Apr 7
American Airlines Logo
11:44 am - 2:58 pm
ORD
-
YUL
2h 14mnonstop
American Airlines Logo
7:45 am - 11:34 pm
YUL
-
ORD
16h 49m
1 stop
$230American Airlines
Thu, Apr 9 - Mon, Apr 13
Delta Logo
5:40 pm - 11:13 pm
ORD
-
YUL
4h 33m
1 stop
Delta Logo
6:45 pm - 11:59 pm
YUL
-
ORD
6h 14m
1 stop
$238Delta
Thu, Apr 9 - Mon, Apr 13
Air Canada Logo
12:50 pm - 4:05 pm
ORD
-
YUL
2h 15mnonstop
Air Canada Logo
3:15 pm - 7:25 pm
YUL
-
ORD
5h 10m
1 stop
$239Air Canada
Thu, May 28 - Tue, Jun 2
Delta Logo
7:05 am - 5:40 pm
ORD
-
YUL
9h 35m
1 stop
Delta Logo
12:40 pm - 8:25 pm
YUL
-
ORD
8h 45m
1 stop
$240Delta
Thu, Apr 9 - Mon, Apr 13
Air Canada Logo
8:40 am - 11:51 am
ORD
-
YUL
2h 11mnonstop
Air Canada Logo
11:10 am - 3:15 pm
YUL
-
ORD
5h 05m
1 stop
$241Air Canada
Mon, Apr 20 - Thu, Apr 30
Air Canada Logo
3:45 pm - 6:55 pm
ORD
-
YUL
2h 10mnonstop
Air Canada Logo
9:15 am - 10:53 am
YUL
-
ORD
2h 38mnonstop
$242Air Canada
Wed, Apr 8 - Fri, Apr 10
Air Canada Logo
12:50 pm - 4:05 pm
ORD
-
YUL
2h 15mnonstop
Air Canada Logo
10:10 am - 3:15 pm
YUL
-
ORD
6h 05m
1 stop
$243Air Canada
Booking Insights

KAYAK's insights & trends for O'Hare Intl to Montreal flights

Get data-powered insights and trends into flights from O'Hare Intl to Montreal to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Chicago O'Hare Airport to Montreal?

The average price of all round-trip flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Chicago O'Hare Airport to Montreal, look for departures on Thursdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Montreal, Friday is the cheapest day to fly and Monday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport is February, where tickets cost $256 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $462 and $457 respectively.

Can I save money by flying with a layover from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $360, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport, you should book around 4 weeks before departure, which saves you about 63% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Expert advice

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

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
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.

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.

Good to know

Low seasonJanuary
Cheapest flight$99
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Chicago O'Hare Airport to Montreal

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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Chicago O'Hare Airport to Montreal flights

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

    In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport was $99 for a one-way ticket and $215 for a round-trip.

  • Do I need a passport to fly between Chicago O'Hare Airport and Montreal?

    A passport is required to fly from Chicago O'Hare Airport to Montreal.

  • Which airports will I be using when flying from Chicago O'Hare Airport to Montreal?

    On your way to Montreal, you’ll fly out from Chicago O'Hare Intl. You’ll be landing at Montreal Pierre Elliott Trudeau Intl.

  • Which airlines offer Wi-Fi service onboard planes from Chicago O'Hare Airport to Montreal?

    All the following airlines offer inflight Wi-Fi service on the Chicago O'Hare Airport to Montreal flight route: Air Canada, American Airlines, Finnair, United Airlines, Porter Airlines, Iberia, and British Airways.

  • Which aircraft models fly most regularly from Chicago O'Hare Airport to Montreal?

    The Embraer 175 (Enhanced Winglets) is the aircraft model that flies most regularly on the Chicago O'Hare Airport to Montreal flight route.

  • Which airline alliances offer flights from Chicago O'Hare Airport to Montreal?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Chicago O'Hare Airport and Montreal, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Chicago O'Hare Airport to Montreal?

    There are nonstop flights from Chicago O'Hare Airport to Montreal on a daily basis.

  • Which is the best airline for flights from Chicago to Montreal, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Chicago to Montreal are Delta and United Airlines. With an average price for the route of $236 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $369 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Chicago O'Hare Airport to Montreal?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago O'Hare Airport to Montreal.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago O'Hare Airport to Montreal?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Montreal from Chicago O'Hare Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago O'Hare Airport to Montreal?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Montreal with an airline and back to Chicago O'Hare Airport with another airline. Booking your flights between Chicago O'Hare Airport and YUL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago O'Hare Airport to Montreal?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Montreal from Chicago O'Hare Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $128 or less one-way and $448 or less round-trip.

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

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Chicago O'Hare Intl to Montreal Pierre Elliott Trudeau Intl.
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

Reviews of the top 4 airlines serving from O'Hare Intl to Montreal

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Montreal. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from O'Hare Intl to Montreal? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8205 reviews
7.9Comfort
7.8Entertainment
8.1Boarding
7.2Food
8.5Crew
Airline reviews

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

10.0 ExcellentSoosnata, Feb 2026
LAX - HNL
Read more Delta reviews

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

Delta continues to set the benchmark for traveler-friendly service with minimal disruption and clear communication within the mainland US (coast to coast). I am consistently pleased to be a Delta customer, and this experience once again met my expectations. There was a brief delay departing from MIA due to a technical issue that required the aircraft to return to the gate. However, the situation was handled professionally and transparently. Fortunately, my planned layover allowed ample buffer time, so the adjustment caused no stress. Overall, another smooth and reassuring experience.

Good experience and the flight landed early. There was no food I had or entertainment.

Flight was delayed and no reasons provided. After the passengers were boarded, the crew made announcement that the captain has jot arrived and he would take another 15 mins. All passengers patiently sat until the captain came and started. Terrible experience!

Flight was delayed. No information on why it was delayed. After we boarded the flight, , the crew made announcement that the captain hs not arrived and he will take 15 mins more to arrive. Passengers were just sitting patiently for the captain to arrive and start, Terrible experience.

Totally worth the miles to upgrade to Delta Comfort. Plenty of legroom.

This was my first time flying Delta ever and I had a great experience!

Smallest leg room I've ever had on a plane.

They took all carry-on luggage from Groups 6 -9 - I was group 5 and waiting in line to board - they made me check my luggage too. That then went to baggage claim and delayed departure from the airport. There was overhead room in my seating area - Delta over reacted. Also, had a gentleman next to me that took up 1/2 my seat.

Excellent!!! Aeromexico is a great airline. What was not that good is the service provided by Kayak. It is never clear and not easy to manage.

Short flight, but no drink/snack service. The flights both going and coming were delayed.

Not being stranded in Chicago for her airport to 11:30 tomorrow morning the 3rd

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

They lost my luggage, so, not happy. The crew was nice but my suitcases never made it, still trying to find out what happened!

I understand weather is an issue, but making us chase our plane down at five scheduled gates across three terminals in an airport the size of O'Hare was unfair. They'd have probably been better off to leave gates as TBD until the inbound plane is in final approach instead of running us all over the place. Also, props to the consistently-unprepared ground crew in Richmond for once again leaving my lane parked short of the gate because they couldn't have a crew in place on time with 2 hours notice...

cabin crew was OK, food was OK, the trip from the US to Munich was actually pretty bad comfort wise. Noisy aircraft, lights never dimmed even in Business class (night flight) barely sufficient amenities for the price. I have millions of miles with United but TBH American is gaining ground and Delta has always been marginally better then United although on paper United has more longes and cheaper upgrades.

Essy to get on. The hostess gave very little pop, the plane was late getting in, and we are still waiting for our bags. This sucks. :/

Not United Airlines' fault. It's ORL airport's fault.

Great flight. On time boarding. Smooth flight and on time arrival at EWR. The flight crew was marvelous and there was a great selection of movies on the entertainment system. Our bags were at the carousel before we got there. Another excellent flight from United.

Boarding delayed 20 minutes for no reason, no wifi, in flight entertainment, or snacks / waters?

Delayed an hour due to operational issues. Minimal apologies or care for the significant inconvenience caused. Landed at nearly 1am and they still couldn’t find ground staff to get us off the plane promptly.

The aircraft had several problems - from excess fuel to non operational ac. Two hours of delay in Chicago could have been avoided with proper planning and aircraft maintenance.

Crew in Columbia was not prepared for landing. It was a bit of a disaster and getting bags took forever.

We were upgraded to First Class and it was a great flight

We experienced gate changes and a long delay. My seat was dirty when I boarded and I had to use wipes to clean it myself. There was an unpleasant and overpowering cleaning product scent on the plane as well that lingered through the flight.

My carry on baggage was damaged. Entire trip, I had to carry the baggage. When complained to the boarding crew, they got mad at me and still asked me to valet check in the cabin baggage. Rude boarding crew!!!

Crew were all friendly and helpful. It was a short flight so just a beverage service with a cookie. After we were boarded the plane took about 45 minutes to leave the gate but it was New Year’s Eve so not shocking there was some delay. Overall good experience and very grateful.

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

The boarding by groups is pointless. The first two groups worked fine, but almost Noone boarded in goups three thru five leaving the vast majority boarding when group six was called. It defeated the purpose of spreading out the crowd.

Couldn't fit knees, only 1 toilet working, didn't get anything to drink cause the stewards were not able to get to us

Our biggest complaint about Air Canada is that if you don’t like your seat during check-in, there’s a fee to move elsewhere. On our flight from YUL to FFL, we were charged to change seats—just regular seats. What’s maddening is that the plane wasn’t even full; there were even a few people sleeping in the middle row sections (entire rows, completely empty), using them as beds. In my opinion, charging passengers for seat changes is a cash grab by Air Canada. They are definitely not the airline they were back in the day. I suppose they need to gouge the consumer now that they pay their attendants while on ground. One out of 10.

Allow me to book extra bag check in as free though I packed in 1 luggage but that was 7 LBS overweight so make another bag to free check in.

Plane left an hour late, I missed my connection and my bow case was never even loaded on the plane in VA. I deal with this type of nonsense everytime I fly air canada.

It was a smooth flight both in the sky and landing!

Fare was great, seat comfort the opposite as cushion was worn out. Ok for 2 hour flight, not for 4.5 hour flight..

For the price, it was a really good experience. There was no entertainment on board, so I couldn't really rate this, and I didn't order a meal. I appreciated that there was a free glass of wine.

Very bad, flight was cancelled due to strike and staff was unable to rebook us

Air Canada is my new fave airline..I plan to use when I can. No complaints at all just rave compliments for the staff and airline.

Strike pissed me n stranded in middle of no where

Everything you need to know for your flight from O'Hare Intl to Montreal

Information on your arrival and departure airports