IAD - YUL

$131 Find Cheap Flights from Washington Dulles 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 Dulles Intl to Montreal departing on 5/26. 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

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 Washington, D.C. 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 Washington, D.C. to Montreal, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Dulles Intl to Montreal

 
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.

Recent round-trip flight deals from Dulles Intl to Montreal

KAYAK's recommended round-trip deals from the most popular airlines that fly from Dulles Intl to Montreal.
Discover the best prices for you by selecting your travel dates on KAYAK.
Porter Airlines Logo
4:20 pm - 8:10 pmIAD-YUL
3h 50m1 stop
Porter Airlines Logo
10:45 am - 3:06 pmYUL-IAD
4h 21m1 stop
$252Porter Airlines
Find Deal
Mon, Jul 7 - Thu, Jul 17
Porter Airlines Logo
11:35 am - 4:00 pmIAD-YUL
4h 25m1 stop
Porter Airlines Logo
10:45 am - 3:06 pmYUL-IAD
4h 21m1 stop
$253Porter Airlines
Find Deal
Thu, Aug 14 - Mon, Aug 18
 Logo
4:20 pm - 8:10 pmIAD-YUL
3h 50m1 stop
 Logo
7:10 pm - 9:08 pmYUL-IAD
1h 58mnonstop
Sat, May 17 - Wed, May 21
United Airlines Logo
8:30 am - 1:09 pmIAD-YUL
4h 39m1 stop
United Airlines Logo
4:40 pm - 8:56 pmYUL-IAD
4h 16m1 stop
$308United Airlines
Find Deal
Wed, May 14 - Wed, May 14
Air Canada Logo
9:45 am - 11:40 amIAD-YUL
1h 55mnonstop
Air Canada Logo
9:15 am - 11:14 amYUL-IAD
1h 59mnonstop
$311Air Canada
Find Deal
Sat, Jun 7 - Sun, Jun 8
United Airlines Logo
5:31 pm - 7:45 pmIAD-YUL
2h 14mnonstop
United Airlines Logo
9:15 am - 11:14 amYUL-IAD
1h 59mnonstop
$314United Airlines
Find Deal
Tue, May 27 - Sat, Jun 14
 Logo
11:35 am - 4:00 pmIAD-YUL
4h 25m1 stop
 Logo
2:20 pm - 4:19 pmYUL-IAD
1h 59mnonstop
Fri, May 30 - Thu, Jun 5
Delta Logo
6:00 am - 11:41 amIAD-YUL
5h 41m1 stop
Delta Logo
6:00 am - 2:35 pmYUL-IAD
8h 35m2 stops
$351Delta
Find Deal
Thu, Jul 10 - Tue, Jul 15
Delta Logo
12:39 pm - 9:09 pmIAD-YUL
8h 30m2 stops
Delta Logo
11:00 am - 12:32 amYUL-IAD
13h 32m2 stops
$354Delta
Find Deal
Wed, Jun 4 - Mon, Jun 9
Air Canada Logo
9:45 am - 11:40 amIAD-YUL
1h 55mnonstop
Air Canada Logo
9:15 am - 11:14 amYUL-IAD
1h 59mnonstop
$357Air Canada
Find Deal
Sun, Jun 1 - Tue, Jun 3
Expert advice

Expert advice for your flight from Dulles Intl to Montreal

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Air Canada

Air Canada's Preferred Economy seats offer up to four extra inches of legroom.


Check-in online or via app 24 hours before your flight for convenience.

Read more about Air Canadaby Stefanie Waldek
United Airlines

United's Economy Plus offers up to six inches more legroom than standard economy seats.


Purchase Priority Boarding to ensure overhead bin space, placing you in Zone 2.

Airports
IAD

Dulles offers the AeroTrain for quick access between terminals, ideal for navigating the airport efficiently before your flight.

Read more about IADby Stefanie Waldek
YUL

The 747 bus offers a 24/7 service from YUL to downtown Montreal, taking up to 70 minutes and providing a budget-friendly option.

Read more about YULby Brandon Schultz
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Air Canada, United Airlines and IAD

Stefanie Waldek

Stefanie Waldek

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

Brandon Schultz

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
Useful Info

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.

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.

For Washington Dulles Airport to Montreal, Friday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Montreal back to Washington Dulles Airport, the best deals are generally found on Friday, with Sunday being the most expensive.

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 January, where tickets cost $242 (return) on average. On the other hand, the most expensive months are October and June, where the average cost of round-trip tickets is $457 and $423 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 $739, 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 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Low seasonJanuary
High seasonJune
Cheapest flight$131
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly with an average 19% increase in price.
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 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport was $131 for a one-way ticket and $252 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Montreal?

    Yes, you’ll need a passport to travel to Montreal from Washington Dulles Airport.

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

    Air Canada, United Airlines, and American Airlines 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 nonstop flights from Washington Dulles Airport to Montreal on a daily basis.

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

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Montreal are Porter Airlines and United Airlines. With an average price for the route of $370 and an overall rating of 8.0, Porter Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $449 and an overall rating of 7.4.

  • 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 travelers 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. Booking your flights between Washington Dulles 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 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 $130 or less one-way and $341 or less round-trip.

Prefer to fly direct from Washington Dulles Airport to Montreal?

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, Avianca, Copa Airlines, +1 more

Air Canada, Avianca, +2 more

Tuesday

Air Canada, Avianca, Copa Airlines, +1 more

Air Canada, Avianca, +2 more

Wednesday

Air Canada, Avianca, Copa Airlines, +1 more

Air Canada, Avianca, +2 more

Thursday

Air Canada, Avianca, Copa Airlines, +1 more

Air Canada, Avianca, +2 more

Friday

Air Canada, Avianca, Copa Airlines, +1 more

Air Canada, Avianca, +2 more

Saturday

Air Canada, Avianca, Copa Airlines, +1 more

Air Canada, Avianca, +2 more

Sunday

Air Canada, Avianca, Copa Airlines, +1 more

Air Canada, Avianca, +2 more

See more direct flights

Direct returns

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

Monday

Air Canada, Avianca, Copa Airlines, +1 more

Air Canada, Avianca, +2 more

Tuesday

Air Canada, Avianca, Copa Airlines, +1 more

Air Canada, Avianca, +2 more

Wednesday

Air Canada, Avianca, Copa Airlines, +1 more

Air Canada, Avianca, +2 more

Thursday

Air Canada, Avianca, Copa Airlines, +1 more

Air Canada, Avianca, +2 more

Friday

Air Canada, Avianca, Copa Airlines, +1 more

Air Canada, Avianca, +2 more

Saturday

Air Canada, Avianca, Copa Airlines, +1 more

Air Canada, Avianca, +2 more

Sunday

Air Canada, Avianca, Copa Airlines, +1 more

Air Canada, Avianca, +2 more

See more direct flights
See more direct flights

Top 3 airlines serving 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.
8.0
Porter AirlinesOverall score based on 285 reviews
8.2Boarding
7.0Entertainment
8.8Crew
8.1Comfort
7.6Food
Airline reviews

I love the 2 seats per row. More room. The crew were excellent.

10.0 ExcellentAnonymous, Apr 2025YHZ - YOW
Read more Porter Airlines reviews

I love the 2 seats per row. More room. The crew were excellent.

It was amazing although they did bump us up to the front which gave us more leg room and a meal. The service was great! The staff were friendly. :)

Overall very good... staff were friendly and helpful. boarding was good for the most part, but a little hard to get our carry-on bags on there.... I think people should be directed to keep their coats and small bags with them until all the carry-ons are loaded, and then, if there is space, they can put their small bags and coats up top.. makes it much easier to put baggage up. i loved the internet feature, but the entertainment was not there unless you have your own Netflix or similar platform. My chair did not recline, which was very annoying, and the arms won't go up near the isle, which makes it tough to get in and out of the seat.

Staff were excellant. Only snacks served. Some turbulence so we were offered Free beer or wine.

The staff is always great. Just the fact that our flight was the only one delayed from Halifax when all other carries were still flying. It happen a year ago out of Toronto as well. All others were flying but our flight got cancelled 1 hr before the time of departure.

The only issue had when i mentioned about comfort was the man beside me was on the larger side and took about 1/3 of my seat where i was pressed against the wall/window of the plane for the trip.

The check-in staff, boarding staff, and flight crew were all very friendly. Really miss the Porter lounge in Ottawa.

Thanks for giving a beer to everyone in the seat infront of me and then telling me that I can’t have one because they are going to land. I guess I need to pay for a seat and then pick one in the very front of the plane

The flight was delayed by more than one hour. The terminal was consequently overcrowded and hot. We lost our car reservation and hit rush hour traffic in Boston, which added two hours stuck in traffic to our trip.

Awesome, the whole way through. Thank you, this is the new Canadian Airline benchmark.

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.

My suitcase was completed destroyed. The top part is broken and unusable now.

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.

We were delayed in Toronto on the tarmac for THREE hours with no clear indication as to why except that it was not a safety hazard. Pilot did apologize more than once but even he was unable to explain why exactly we were delayed. I overheard the stewards saying that the captain was very frustrated with the situation as well because he was not able to explain why except it had something to do with water supply or system on the aircraft and now we needed to wait for an engineer to approve the aircraft for flight. It was very frustrating and distressing as a passenger and we should have been given complimentary meals at the very least.

Flight was cramped with every seat taken. The food was fine, nothing crazy to write home about. The plane felt dated and needing some TLC, the button for the window shade didn't work and there were no AC outlets to use. When communicating with staff all except one nice lady never seemed happy to help me almost like I was bothering them when asked for things like a glass of water or a snack. The flight was overall fine. It did what was needed which is get me from point A to point B. But it certainly was not special. I don't expect much in economy but I believe economy on a host of other airlines is more memorable and better experience.

The flight was heavily booked so boarding was a lengthy process. The FA’s were rather abrupt during this process but became more gracious as the flight went on. Breakfast (puffed pastry and chewy sausage) was pretty horrible but there was fruit and yogurt which they didn’t mess up. Overall it was fine.

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

I completely missed my flight because the first leg was longer than planned. I had to sleep overnight in the airport because no accommodation was provided and then sent to Trinidad in the morning with an anticipated 7 hour layover before my flight to Georgetown which was now with Caribbean Airlines. I tried twice with customer service to see if they could put me on an earlier flight which had seats available but was told it wasn’t possible.

Most disapointing experience. We were rerouted to Toronto, after a 7 hours flight , where we sat on the tarmac for a little over 4 hours, in a full airplain with no air. We were given a tiny cup of water twice during that wait. After the long wait we taxi out of toronto to wait another 30 min. Many people missed their conections including my kids and I. We were promised a hotel room in Montreal on the aircraft and at the exit of the aircraft, then directed to a desk after custom where me and my two kids were told that we do not get a room for the night and that we were on our own, after a back and fourth and stating what was told to us, the agent at the counter says that we are right and that we should have a room. I ask the lady if she could look into a different flight for us for the next day as I was with two you g kids and wanted them to get some rest. The gentlemen next to her jumps in and said there wss nothing without even (pretending) looking at their system, I insist and say that they could look for the kids. They seemed to have trouble with our reservation so they gave up. I told them that I needed to talk to a manager, they said there were no managers and that no one can do anything, to which I responded that there must be someone that could do something and that it does not make sense for them to repeat the same think as we are not undestanding each other. She threatns to call security and says I am rude. I say I will go, just give me the vouchers and ger response is “ not giving you the vouchers because you are rude”. I was not rude. It is normal to want to talk to a manager. I even said that the people at the counter were not resoonsible for the long journey and that there was nothing they could have done. But to threten and himiliate someone just because they ask for someone else to talk to ? I understand they are overwhelmed, but you know the quality and calibre of a company in the bad times not the smooth ones. I ended up leaving and paying for my own room and board.

1. Nowhere to sit at the gate D4 2. No control of lining up in different zones 3. People pushing in during the line up of zones. 4. Certainly not in a dignified manner.

Air Canada was great! From the airport at Montreal to boarding to the food on board the plane. The crew was great too! There was a slight issue with some other peoples’ tickets that I overheard about but the crew handled with care immediately to ensure everyone was comfortable and we could takeoff! Great experience with Air Canada

The plane was dirty. It appeared that Air Canada did not know vacuum cleaners had been invented. Second, the overhead bins were about 1/3 or 1/2 the size of "normal" bins. That was a problem. The worst was disembarking in the weather in Montreal. I have cold agglutinin disease. That means my red blood cells clump together and then are destroyed when exposed, even by breathing to cold air. A few seconds of exposure can be dangerous. I am now experiencing extreme fatigue caused by the anemia from that experience. I should have had more assistance descending a narrow ramp and then traversing, even if only a few feet, of icy pavement. The blowing snow penetrated my facial covering and has caused problems.

Boarding could be improved, no need to wait after a previous group is completed

We boarded 1.5 hours late. Long wait for the bags when we got to Mexico City. Long wait to get on plane with people mover truck. Friendly staff. They answered all questions as best the could. Such a long, long walk from the plane to customs. Thank you, Michael A. Burris Cambridge, Massachusetts USA

Very good ! I would recommande it to my friend and family

the service was fine but would have which that the audio for announcement is better.

My first flight left so late we knew I would miss my connection. Rather than redirecting me then, they made me take a flight to Montreal, then Toronto (there was a flight leaving for Toronto when I was in NYC, no need for me to also go to montreal). Then they gave me a food voucher that did not work (4 places would not accept it). At least they gave me a hotel automatically, even though it was a cheap crappy one. I'm still not home, and it's been over 24 hours. I'm exhausted.

The boarding was at a dual gate hallway and there was only one spoken explanation about which way to turn to board the correct plane. It wasn't marked visually at the split in the gate. The phone charger did not work at my seat. The temperature was quite chilly throughout the flight and the recorded announcements were extremely loud for a small plane.

I was forced to check my carry-on bag, which I don't appreciate.

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