IAD - YUL

C$ 226 Find Cheap Flights from Washington Dulles Airport to Montreal – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Montreal departing on 16/8. 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

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Everything you should know

Cheapest round-trip
C$ 461
Typical prices: C$ 402-C$ 758
Air Canada
Tue 18/8Sat 29/8
IAD - YUL • 1 stop
Cheapest direct flights
C$ 525
Typical prices: C$ 464-C$ 742
Air Canada
Sat 12/9Tue 15/9
IAD - YUL • Direct
Advice from real travellers
AI-powered summary based on content written by travel experts. AI can make mistakes.
United Economy Plus adds up to 15 cm legroom; Air Canada Preferred Economy adds 10 cm.
At YUL, the ArriveCAN app can speed customs with a shorter queue for users.
Expert advice
Expert advice
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Top airlines
Cheapest • from C$ 461 (round-trip)
Best reviews • 7.4 score
Airline reviews
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Direct flights
You can fly direct with Air Canada and United Airlines. Average duration is 1h 52m
Direct flights
Direct flights
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Direct flights
Direct flights
+1
When to book
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 40% compared to booking last minute.
Insights
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Insights
When to travel
Cheapest • 25% price drop
Most popular
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Flight Deals

Cheap Flights from Dulles Intl to Montreal (IAD-YUL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles 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 Dulles Intl to Montreal

Tue, 18 Aug - Sat, 29 Aug
Air Canada Logo
5:15 p.m. - 9:47 p.m.
IAD
-
YUL
4h 32m
1 stop
Air Canada Logo
1:05 p.m. - 3:01 p.m.
YUL
-
IAD
1h 56mdirect
C$ 461Air Canada
Fri, 30 Oct - Sun, 1 Nov
Air Canada Logo
9:55 a.m. - 11:38 a.m.
IAD
-
YUL
1h 43mdirect
Air Canada Logo
10:30 a.m. - 4:33 p.m.
YUL
-
IAD
6h 03m
1 stop
C$ 463Air Canada
Wed, 22 Jul - Mon, 27 Jul
Porter Airlines Logo
3:55 p.m. - 10:10 p.m.
IAD
-
YUL
6h 15m
1 stop
Porter Airlines Logo
6:30 a.m. - 10:25 a.m.
YUL
-
IAD
3h 55m
1 stop
C$ 464Porter Airlines
Sun, 19 Jul - Wed, 29 Jul
Porter Airlines Logo
3:55 p.m. - 8:10 p.m.
IAD
-
YUL
4h 15m
1 stop
Porter Airlines Logo
10:35 a.m. - 3:11 p.m.
YUL
-
IAD
4h 36m
1 stop
C$ 466Porter Airlines
Sat, 8 Aug - Mon, 10 Aug
Porter Airlines Logo
11:25 a.m. - 6:10 p.m.
IAD
-
YUL
6h 45m
1 stop
Porter Airlines Logo
6:30 a.m. - 10:45 a.m.
YUL
-
IAD
4h 15m
1 stop
C$ 467Porter Airlines
Sat, 8 Aug - Fri, 21 Aug
Porter Airlines Logo
11:25 a.m. - 6:10 p.m.
IAD
-
YUL
6h 45m
1 stop
Porter Airlines Logo
6:30 a.m. - 10:45 a.m.
YUL
-
IAD
4h 15m
1 stop
C$ 468Porter Airlines
Fri, 30 Oct - Sun, 1 Nov
Air Canada Logo
5:15 p.m. - 9:45 p.m.
IAD
-
YUL
4h 30m
1 stop
Air Canada Logo
10:30 a.m. - 4:33 p.m.
YUL
-
IAD
6h 03m
1 stop
C$ 470Air Canada
Sat, 10 Oct - Mon, 12 Oct
Porter Airlines Logo
11:25 a.m. - 6:10 p.m.
IAD
-
YUL
6h 45m
1 stop
Porter Airlines Logo
6:30 a.m. - 10:45 a.m.
YUL
-
IAD
4h 15m
1 stop
C$ 471Porter Airlines
Fri, 18 Sep - Mon, 28 Sep
Porter Airlines Logo
11:25 a.m. - 6:10 p.m.
IAD
-
YUL
6h 45m
1 stop
Porter Airlines Logo
6:30 a.m. - 10:45 a.m.
YUL
-
IAD
4h 15m
1 stop
C$ 473Porter Airlines
Wed, 29 Jul - Thu, 30 Jul
Porter Airlines Logo
3:55 p.m. - 10:10 p.m.
IAD
-
YUL
6h 15m
1 stop
Porter Airlines Logo
6:30 a.m. - 10:25 a.m.
YUL
-
IAD
3h 55m
1 stop
C$ 474Porter Airlines
Booking Insights

KAYAK's insights & trends for Dulles Intl to Montreal flights

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

How much is a round-trip flight from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport departing in August.

What’s the cheapest day of the week to fly from Washington Dulles Airport to Montreal?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Montreal on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Tuesday is the most expensive day to fly from Washington Dulles Airport to Montreal. For your return ticket, we recommend flying on a Saturday and avoiding Sundays for the best deals.

What is the cheapest month to fly from Washington, D.C. Dulles 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 Washington, D.C. Dulles 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 Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport is March, where tickets cost C$ 410 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is C$ 646 and C$ 635 respectively.

Can I save money by flying with a layover from Washington, D.C. Dulles 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 C$ 679, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Washington, D.C. Dulles 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 Washington, D.C. Dulles 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 Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport, you should book around 3 weeks before departure, which saves you about 40% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Expert advice

Expert advice for your flight from Dulles 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 United Airlines, Air Canada and IAD

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.

Good to know

Low seasonJanuary
Cheapest flightC$ 226
Best time to beat the crowds (22% less expensive on average)
Most popular time to fly (9% more expensive on average)
Flight from Washington Dulles Airport to Montreal

When to book flights from Dulles Intl to Montreal

Are your dates flexible? Find out the best times to travel from Dulles 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 Washington Dulles Airport to Montreal flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

    In the last 5 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport was C$ 226 for a one-way ticket and C$ 461 for a round-trip.

  • Which airlines offer Wi-Fi service onboard planes from Washington Dulles Airport to Montreal?

    Air Canada, United Airlines, and JetBlue offer inflight Wi-Fi service on the Washington Dulles Airport to Montreal flight route.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Montreal?

    The Embraer 175 (Enhanced Winglets) is the aircraft model that flies most regularly on the Washington Dulles Airport to Montreal flight route.

  • Which airline alliances offer flights from Washington Dulles Airport to Montreal?

    Star Alliance is the only airline alliance operating flights between Washington Dulles Airport and Montreal.

  • On which days can I fly direct from Washington Dulles Airport to Montreal?

    There are direct flights from Washington Dulles Airport to Montreal on a daily basis.

  • Which is the best airline for flights from Washington, D.C. to Montreal, United Airlines or Air Canada?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Montreal are United Airlines and Air Canada. With an average price for the route of C$ 674 and an overall rating of 7.4, United Airlines is the most popular choice. Air Canada is also a great choice for the route, with an average price of C$ 871 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Washington Dulles 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 Washington Dulles Airport to Montreal.

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

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

  • What is the Hacker Fare option on flights from Washington Dulles 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 Washington Dulles Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles 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 Washington Dulles 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 Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 331 or less one-way and C$ 618 or less round-trip.

Prefer to fly direct from Washington Dulles Airport to Montreal?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Washington, D.C. Dulles Intl to Montreal Pierre Elliott Trudeau Intl.
Find which airlines fly direct from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport, which days they fly and book direct flights.

Direct departures

Washington, D.C. Dulles Intl 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

See more nonstop flights

Direct returns

Montreal Pierre Elliott Trudeau Intl to Washington, D.C. Dulles 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

See more nonstop flights

Reviews of the top airlines flying from Dulles Intl to Montreal

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. 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 Dulles 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.
7.4
United AirlinesOverall score based on 9930 reviews
8.1Crew
7.7Boarding
6.7Food
7.3Comfort
7.1Entertainment
Airline reviews

I felt scammed. The priced advertised was different than what I paid. I paid the whole some online. I then got a call 20 minutes later saying I need to paid 70 more person. She said the price online is not the guaranteed price.

8.0 ExcellentAnonymous, May 2026
IAH - YUL
Read more United Airlines reviews

I felt scammed. The priced advertised was different than what I paid. I paid the whole some online. I then got a call 20 minutes later saying I need to paid 70 more person. She said the price online is not the guaranteed price.

Delay and keep changing gates. I have to run around from B to C then to E.

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.

When I booked it on Kayak it aaid that I wasn't allowed hamd luggage. I called United Airlines and it took them 6 minutes to figure out if I was allowed free hand luggage. Surely something that simple they should be able to tell me instantly.

Liked nothing. As per previous segment it was delay delay delay.

Basics were there, but a 5:15 flight with almost no food ans no entertainment, it is quite long.

Extremely uncomfortable sitting in a small space for 2 hours, especially for older people. Understood it was circumstantial.

I feel like they have upgraded the app since I last flew United and I found it to be super helpful. I had stopped flying United unless absolutely necessary and my experience on this trip indicates they have been working hard to improve their services.

We left really late. Things that were out if anybody’s control I guess.

Excellent as always. Service was excellent and fully bilingual. Cannot complain .Will travel again. Always have and will continue. Highly recommended.

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.

We were forced to check in our carryon and were given a green label that said to pick it up when exiting the airplane. We were told by the flight attendant to pick it up at the carrousel instead. We spent more than 40 minutes looking for the carryon which appeared at the wrong carrousel. There was no agent at the united desk for help. There was no entertainment.

Confusing with Air Canada and United flight, it was a hell, no help, rude people there, stressful environment

The flight ran out of hot meals for the back half of the plane and gave us tuna sandwiches. Not okay, these flights cost too much to short us the experience!

Our plane was so cramped that I couldn’t fit my bag below my feet and my knees were pressed against the seat in front of me. For a 45 minute flight, We sat on the runway for over an hour before returning to the gate to wait for another 2 hours. We arrived over 4 hours late, uncomfortable and tired.

The seats were not very comfortable. Looks like between saving money and reducing aircraft weight, the comfort factor was forgotten!!

I didn’t like anything. It was just okay. There weren’t any snacks and the seats were small. It was pretty uncomfortable. I think the flight attendants tried their best with what they had though.

The male crew member at the check-in counter was really really helpful, and we appreciate him a lot (I’m sorry we couldn't remember his name. He is an Asian Guy). Unfortunately, this trip is very disappointing. We did not know that we had to apply for ETA before boarding. I could catch the flight, but my friend could not, as the ETA was not approved until a few hours after the flight departure. We were deeply disappointed with the unclear instructions to prepare the document before boarding. This was a horrible experience for us, unable to get on the flight. We hope your company can do better in this issue.

Flight to Montreal departed on time. Flight was routine except for an unexplained delay in deboarding. Connecting flight to Halifax went well with good cabin crew service.

I left my Anker battery pack on my flight from IAD to YUL. I didn't notice until I had gotten to the international gate for my connecting flight. Not only did the gate representative go out of his way to contact United to find it, he also helped me get back throught security, so I could get to the United counter and pick it up. Stellar service from Air Canada!

Everything you need to know for your flight from Dulles Intl to Montreal

Information on your arrival and departure airports