Air Canada's Business Class recliners offer ample legroom in a 2-2 configuration.
Preferred Economy seats offer up to 4 extra inches of legroom for a fee.

| Low season | January |
|---|---|
| High season | July |
| Cheapest flight | $138 |
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
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
Always wish for more healthy, gluten free options. We have to bring our own.
Always wish for more healthy, gluten free options. We have to bring our own.
Having a long layover, I was very appreciative of the ability to stand by for an earlier flight. Other airlines like Delta have refused this to me in the past, just to be mean (because my ticket class wasn't high enough). United went out of their way to help me get to my destination early, which I really appreciated given that it was the third leg of a 24+ hour journey for me.
Other than a way way too cold cabinets for the entire flight, all was great
One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.
Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.
Not the fault of United—weather, reroute around weather, time sitting on tarmac, arrived couple hours late, too late for train into city necessitating a much pricier cab but weather…can’t be helped.
I will never book a flight through Cheap fare. They booked me from Portland Main . And would not give me a refund, so I bought 2 tickets one for 299. From Portland Main to ORD. Then I had to buy a ticket from Oregon PDX to ORD that was another 440. So Just so you know they even told me it was there fault but no refund. Bad bussniess. I did inform United but they said they couldn't help me due to the fact I booked through Cheap Tickets. Never again. And I'm spreding the word. I let everyone know at my 50th class reunion
The flight attendants were rude. Seemed like they didn’t want to be there. Except for one girl that was really nice. Seats are sooooo uncomfortable. They give you a piece of paper and a thin cushion for a pillow and blanket that does nothing. Airlines have gone way downhill, especially United international flights. Food was disguting. Definitely flying ANA next time.
Crew and customer service were excellent. This flight also had plenty of leg room and seat mounted screens for entertainment. A very pleasant flight all around!
It would have been better if the crew has supported my husband's reasons for needing to keep the space clear around his feet, rather than insisting that he put his knapsack in that space.
We loved the steward on the plane. He made the night enjoyable
The plane was late, when we did board the plane was as cold as a freezer. I was freezing the entire flight, no blankets. Lost miserable flight I’ve ever had.
My wife and I love to travel, so we fly a lot. We've already logged 381,075 miles and with practically every major airline. But this flight was very disappointing. It started off well, with no delays and a new plane. But when lunchtime approached, all that good impression was ruined. Instead of white tablecloths, we were offered small, dark placemats, which, as it turned out, were perfectly adequate for the food. All the food offered—and my wife and I only took fish, and the meat—was not just bad, it was downright disgusting and not heated enough. The same applies to the appetizers. This was the first time in many years of traveling that we've been offered such disgusting food.
Lost luggage stuck no clothes and no word after 2 days leaving on cruise no stuff or clothes
3 hour weather delay followed by 1 hour (and counting) maintenance delay. UGH!
After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"
After a two hour delay, my flight was CANCELLED! No pilot available. Such BS.
Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan
I wish American Airlines would change the airline industry by loading the plane back to front instead of front to back. Planes would board so much more smoothly and quickly.
I have long legs, my foot was out in the aisle and when a flight attendant came walking by and I didn't notice, instead of saying "excuse me" or anything like that, she kicked my foot. Extremely rude
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
No paper towels in bathroom. Aisle seat difficult to get out of Other than those, excellent service
Plane was packed but flew on-time, and the comfort level was great! All planes are a bit cramped, but the in flight entertainment was superb, snacks were nice, and the crew was polite. Got into Calgary on schedule...all we could ask for