Air Canada offers priority check-in for higher fare classes and elite status holders.
Preferred Economy seats provide up to 4 extra inches of legroom for an additional fee.
Planning a trip from Washington, D.C. to Montreal? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.
Low season | April |
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High season | August |
Cheapest flight | $126 |
Direct departures
Washington, D.C. to Montreal Pierre Elliott Trudeau Intl
Monday
Air Canada, United Airlines
Air Canada, United Airlines
Tuesday
Air Canada, United Airlines
Air Canada, United Airlines
Wednesday
Air Canada, United Airlines
Air Canada, United Airlines
Thursday
Air Canada, United Airlines
Air Canada, United Airlines
Friday
Air Canada, United Airlines
Air Canada, United Airlines
Saturday
Air Canada, United Airlines
Air Canada, United Airlines
Sunday
Air Canada, United Airlines
Air Canada, United Airlines
Direct returns
Montreal Pierre Elliott Trudeau Intl to Washington, D.C.
Monday
Air Canada, United Airlines
Air Canada, United Airlines
Tuesday
Air Canada, United Airlines
Air Canada, United Airlines
Wednesday
Air Canada, United Airlines
Air Canada, United Airlines
Thursday
Air Canada, United Airlines
Air Canada, United Airlines
Friday
Air Canada, United Airlines
Air Canada, United Airlines
Saturday
Air Canada, United Airlines
Air Canada, United Airlines
Sunday
Air Canada, United Airlines
Air Canada, United Airlines
I was not happy with AirfareAssist, the agency that kayak advised me would be handling my booking. I was advised by porter airlines that I had been overcharged for the Basic express , a option that I had asked airfare assist to help arrange after I realized that the basic fare I had chosen with porter did not include a carryon. At each checkin porter advised I had been overcharged for this . They advised that money would be refunded to my credit card, however, this is not likely to happen as it is not my name and credit card that appeared on the porter invoice, but that of another individual/agent. When airfare assist was arranging the basic express with porter on my behalf, they asked me to confirm that I agreed to pay $263 USD for this. I did agree, as I was advised this was needed to proceed. When I checked the invoice on the porter website and saw that it was not my name and credit card on the invoice, I was advised that this was how airfareassist processed the payment. The Porter invoice indicated a billed amount of $126USD I will not use Kayak or their designated AirfareAssist again
I was not happy with AirfareAssist, the agency that kayak advised me would be handling my booking. I was advised by porter airlines that I had been overcharged for the Basic express , a option that I had asked airfare assist to help arrange after I realized that the basic fare I had chosen with porter did not include a carryon. At each checkin porter advised I had been overcharged for this . They advised that money would be refunded to my credit card, however, this is not likely to happen as it is not my name and credit card that appeared on the porter invoice, but that of another individual/agent. When airfare assist was arranging the basic express with porter on my behalf, they asked me to confirm that I agreed to pay $263 USD for this. I did agree, as I was advised this was needed to proceed. When I checked the invoice on the porter website and saw that it was not my name and credit card on the invoice, I was advised that this was how airfareassist processed the payment. The Porter invoice indicated a billed amount of $126USD I will not use Kayak or their designated AirfareAssist again
Our flight was delayed by a bit. I appreciated that we were kept informed on why periodically. Boarding was fine. I overheard one flight attendant sounding very rude to a passenger who was not paying attention to the safety demonstration. The snacks were minimal as it was a short flight. There was no entertainment. Overall the flight was good back to LGA.
There was a 5 hour delay. Missed connection and now an almost 21 hour lay over!
The flight was fine see earlier note for the problem
Three hours on the tarmac with almost zero communication from the cockpit. Not when offered a water in the interim. In my 67 years of flying all over the world the worst experience ever. The plane was half empty, however had to pay for seats to sit next to my girlfriend. Extra to take a carry on. I would never fly Porter again even for free.
Everything was good except the fact you charge more for a carry on bag vs a check in bag and to top it off in US$ that was not impressive
Our flight was cancelled at the last minute for maintenance reasons and we were rebooked on a late flight when we purposefully booked our flight to be home early due to work.
Seemed like an old plane. Very noisy. The seat cushions were so old that the metal bracing of the seats were poking through. There was plenty of leg room though.
Flight was delayed over 2 hours, then landed at a different airport!
The whole experience from check in to deboarding was fantastic.
Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5
Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .
Staff was rude. Didn’t give water for 2 hours. Worst service
Was on time until within 1 hour of flight-how does that happen? Staff very friendly.
I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.
We were given vouchers we couldn’t use with a 5.5 hour delay
Delay and keep changing gates. I have to run around from B to C then to E.
I fly UAL 7-8 times per year. This flight was not up to snuff because it boarded very late "due to unexpected delays in restocking the plane" and yet Flight Aware showed the plane had landed some 10 hours earlier--so I think they could have planned accordingly. The FA's were nice but harried. The video system had to be rebooted 3-4 times. The food service was rather abrupt; they forgot my row and when I asked for my meal, they brought it with some impatience. Overall, the flight was fine, but the little details made it feel somewhat mundane and hurried.
Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.
I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.
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
All good but I could barely get my arms and legs into the room in front of me. Have never been so cramped before. Plane left the gate on time, taxied very quickly and took off without waiting. Unique. Arrival on time. No problem
I had a good experience. I liked being informed about the status of my luggage
I am very tall. All airline seats are a bit uncomfortable.
Terrible confusion btw air Canada and United. Wasn’t able to change ticket because I had purchased on kayak. Rethinking booking tickets on this site, and will try to avoid United and aircanada going forward.
The plane is too cramped! Zero leg room and when the person in front of me put their seat back they were basically laying in my lap.
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