YUL - IAD

C$ 191 Find Cheap Flights from Montreal to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Montreal to Dulles Intl departing on 6/6. 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 Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Montreal to Washington, D.C., 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 Montreal to Washington, D.C., as well as popular online travel agencies
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Cheap Flight Deals from Montreal to Dulles Intl (YUL-IAD)

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

KAYAK's recommended round-trip deals from the most popular airlines that fly from Montreal to Dulles Intl.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Porter Airlines Logo
10:45 a.m. - 3:06 p.m.YUL-IAD
4h 21m1 stop
Porter Airlines Logo
11:35 a.m. - 4:00 p.m.IAD-YUL
4h 25m1 stop
C$ 325Porter Airlines
Find Deal
vie., 23 may. - lun., 26 may.
Porter Airlines Logo
10:45 a.m. - 3:06 p.m.YUL-IAD
4h 21m1 stop
Porter Airlines Logo
11:35 a.m. - 6:05 p.m.IAD-YUL
6h 30m1 stop
C$ 332Porter Airlines
Find Deal
vie., 13 jun. - dom., 15 jun.
Air Canada Logo
7:10 p.m. - 9:08 p.m.YUL-IAD
1h 58mdirect
Air Canada Logo
9:45 a.m. - 11:40 a.m.IAD-YUL
1h 55mdirect
C$ 334Air Canada
Find Deal
mar., 20 may. - mar., 27 may.
Air Canada Logo
9:15 a.m. - 1:41 p.m.YUL-IAD
4h 26m1 stop
Air Canada Logo
9:45 a.m. - 11:40 a.m.IAD-YUL
1h 55mdirect
C$ 343Air Canada
Find Deal
mar., 20 may. - mar., 27 may.
United Airlines Logo
11:15 a.m. - 1:14 p.m.YUL-IAD
1h 59mdirect
United Airlines Logo
3:18 p.m. - 5:15 p.m.IAD-YUL
1h 57mdirect
C$ 355United Airlines
Find Deal
jue., 15 may. - dom., 18 may.
United Airlines Logo
8:00 p.m. - 7:26 a.m.YUL-IAD
11h 26m1 stop
United Airlines Logo
9:45 a.m. - 11:40 a.m.IAD-YUL
1h 55mdirect
C$ 358United Airlines
Find Deal
mié., 7 may. - jue., 8 may.
Delta Logo
6:00 a.m. - 12:06 p.m.YUL-IAD
6h 06m1 stop
Delta Logo
3:31 p.m. - 11:54 p.m.IAD-YUL
8h 23m1 stop
C$ 387Delta
Find Deal
mar., 3 jun. - mar., 10 jun.
 Logo
9:15 a.m. - 1:41 p.m.YUL-IAD
4h 26m1 stop
 Logo
4:20 p.m. - 8:10 p.m.IAD-YUL
3h 50m1 stop
C$ 406
Find Deal
jue., 15 may. - dom., 18 may.
 Logo
7:00 a.m. - 1:41 p.m.YUL-IAD
6h 41m1 stop
 Logo
4:20 p.m. - 10:15 p.m.IAD-YUL
5h 55m1 stop
C$ 413
Find Deal
jue., 15 may. - jue., 15 may.
Delta Logo
6:00 a.m. - 4:51 p.m.YUL-IAD
10h 51m2 stops
Delta Logo
7:10 a.m. - 4:25 p.m.IAD-YUL
9h 15m2 stops
C$ 454Delta
Find Deal
sáb., 14 jun. - sáb., 5 jul.

Expert advice for your flight from Montreal to Dulles Intl

 
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 specific 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 10 cm more legroom for added comfort.


Air Canada's Aeroplan offers free Wi-Fi messaging for members, enhancing connectivity.

Read more about Air Canadaby Stefanie Waldek
United Airlines

United's Premier Access offers priority check-in and boarding for eligible passengers, enhancing travel efficiency.


United offers Priority Boarding to avoid overhead bin space issues, placing you in Zone 2.

Airports
YUL

Use YULExpress to schedule a security checkpoint time up to 72 hours before departure for a smoother experience.

Read more about YULby Mark Stachiew
IAD

Take the Silver Line Metro from IAD to D.C. city centre in about 50 minutes for a convenient and cost-effective option.

Read more about IADby Stefanie Waldek
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
Mark Stachiew

Mark Stachiew

Expert on YUL

Mark Stachiew

Mark Stachiew

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.

Read more

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

Get data-powered insights and trends into flights from Montreal to Dulles Intl 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 Montreal to Washington Dulles Airport?

The average price of all round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Montreal to Washington Dulles Airport, look for departures on Saturdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Washington Dulles Airport, Monday is the cheapest day to fly and Sunday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles 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 Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport is March, where tickets cost C$ 365 (return) on average. On the other hand, the most expensive months are December and October, where the average cost of round-trip tickets is C$ 655 and C$ 565 respectively.

How far in advance should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles 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 Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles 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 Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know

Low season

February

High season

July

Cheapest flight

C$ 191
Best time to beat the crowds (6% less expensive on average)
Most popular time to fly and prices are also 8% lower on average.
Flight from Montreal to Washington Dulles Airport

When to book flights from Montreal to Dulles Intl

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

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

    In the last 3 days, the lowest price for a flight from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport was C$ 138 for a one-way ticket and C$ 235 for a round-trip.

  • Which airports will I be using when flying from Montreal to Washington Dulles Airport?

    Montreal airport is called Montreal Pierre Elliott Trudeau Intl and the only airport in Washington Dulles Airport is Washington, D.C. Dulles Intl.

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

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

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Montreal to Washington, D.C. are Porter Airlines and United Airlines. With an average price for the route of C$ 412 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 C$ 477 and an overall rating of 7.4.

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

    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 Montreal to Washington Dulles Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Montreal 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 Montreal to Washington Dulles Airport?

    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 Washington Dulles Airport with an airline and back to Montreal with another airline.

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

    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 Washington Dulles Airport from Montreal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 232 or less one-way and C$ 492 or less round-trip.

Prefer to fly direct from Montreal to Washington Dulles Airport?

Find which airlines fly direct from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport, which days they fly and book direct flights.

Direct departures

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 nonstop flights

Direct returns

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 nonstop flights
See more nonstop flights

Top 3 airlines serving from Montreal to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Montreal to Washington, D.C.. 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 Montreal to Dulles Intl? 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 284 reviews
8.8Crew
8.2Boarding
7.0Entertainment
8.1Comfort
7.6Food
Airline reviews

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. :)

10.0 ExcellentDiane, Apr 2025YYZ - TPA
Read more Porter Airlines reviews

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.

We were given a complimentary seat upgrade which was so unexpected but so lovely!

Mostly the experience was good except for the flight changes made by UA which meant longer layover in DC

Terrible. First of all we were delayed 4 3/4 hours departing Honolulu. As we had to leave our condo and the rental car had to be returned we had to go to the airport. Even though we had a business class boarding pass to Washington, since we did not have business class to Montreal we could not access the lounge without paying a $59 fee each. This does not make sense to us. Since we could not meet our original connection United booked us to Montreal via New York LaGuardia on Air Canada. In Washington a further delay got us into LaGuardia too late to make our connection to Montreal so we were booked on another Air Canada flight 3 hours later. We were originally scheduled to arrive in Montreal at 10:40 and arrived at 19:55. A totally exhausting day, United did not offer a meal voucher or any type of compensation. Air Canada did give us a digital meal voucher. The food in United business class is poor among all meals offered. The pods look nice but are not that confortable. Overall would not fly on United again.

Change cabin crew assisting business class. Not taking care, ignoring requests and calls. Never had such an experience in business class.

United left one of our bags back in SFO but that’s not my real complaint. The complaint is how it all went down. So we checked in the day before online and were told we could use the quick drop for luggage. So the next day I used baggage quick drop curbside at SFO. The agent mistakenly didn't tag my bag as he put my bag on the conveyor belt untagged. We immediately alerted him he had not tagged the bag. I walked with him to the baggage service office to find my bag and tag it. We waited outside the office for 10 mins. He came out and said everything was ok and the bag was going to be tagged and on my flight. We received a text that one of our bags was on the flight but the other was not. I alerted my first class flight attendant immediately upon boarding the flight. She was helpful and said she’d get it sorted out right away. She called over the gate agent. The gate agent used my bag number and looked over information on her device. She said my bag was on the flight. The flight attendant was standing with her, looking at the device, and also said “yep it’s on the flight”. During the flight the flight attendant made reference to how reassuring it must feel knowing the bag was on the flight. Upon arriving to IAD we received a text that my bag was not on my flight. The text said my bag would arrive to my final destination LIS 24 hrs late. I understand that mistakes happen. I was totally ok with my bag mistakenly not getting tagged at the quick drop. I was fine with walking down to baggage services to tag my bag. But, what I am not ok with is that the United staff said they fixed the mistake two different times, assuring me twice that my bag would be/was on the plane…and it wasn’t. I expected better attention by the employees, for them to do what they said they were going to do. We also spent extra money to upgrade our seats to first class, including the entire return leg from Lisbon to San Francisco because we wanted a smoother and more relaxing travel experience. Our money was not well spent. We will not be using United for travel going forward.

The flight was delayed, it took longer than anticipated because of weather, and they broke my luggage.

Horrifying! And I am almost 2 million miles with United. Late by 3 1/2 hours. Worst: after two hours on the plane waiting, they decided that one of the tires had been damaged and then decided to change it. Another hour and a half to change the tire!!!!! NO EXCUSE FOR THIS. The crew didn't even offer a glass of water until we had been on the plane for FIVE hours. This is the worst airline in the world. I'm simply stuck because they fly on the only routes I need.

Gate got changed about 4 times. Very confusing and very crowded. If you don’t have wifi to help get updates, you can be in deep trouble.

Attendants zipped through cabin so fast hardly anyone got the water they told us we could have in the short flight. Nothing else was offered.

Sucks ! All three flights I was on this trip were delayed.

The flight attendants were unhelpful. It was a packed flight, and usually a flight attendant would help find a spot in the bin for your carry on or shift things around. Neither made any effort to do so. Also, I had to then check my bag. I was told it would be on the carousel in YYZ, but it came up on the jetway. So lucky I saw others standing around for their bags. I would have walked straight past this and on to the carousel. They could have at least told me that they had given me wrong information. Very unsatisfactory.

Terrible. Flight was delayed for hours and we ended up arriving at our home at 4am after 20+ hours flying.

Flight was cancelled around 45 -1hr minutes before scheduled take off time due to mechanical issues we hadn’t even boarded yet. Had to reroute to Orlando so someone had to drive 2 1/2 to come and get me… the alternative was go through Toronto and get a later flight which didn’t work for my schedule. The flight attendants barely gave anyone a smile…not the same as flying when a client/passenger was important. Very disappointed. By the way I have never ever made a complaint online about any company with feedback…even when I probably should have. The only good experience was the boarding desk associates who were very professional and got me on another flight with my checked bags…very nice team.

Actually as my experience with air Canada from Canada to Newark it was crazy for me because it was a lot of delays which for me it shouldn’t be like that, but I was able to coup with it so that was my experience I hope next time they will do good on that thanks.

Mixed experienced. Nice staff. Spacious 787 better than cramped Airbus, though my seat was broken. The bad: Way overpriced ticket and charged for food despite 6 hr flight.

Very smooth flight and the crew members were very welcoming.

Super. Planes were clean. Flights were on time. boarding was smooth. Flight attendants were professional.

ground crew at Casablanca as well as at Montreal was not helpful at all. specially at Montreal airport, very rude .

Flight was delayed by 45 min. No problems. Everyone took it in stride.

The TSA people or whatever you call them were a bit rude- I asked why I had to take my shoes off bc I'm 75 and in the USA, I don't have to. The man didn't need to snap at me. It wasn't even busy! The plane was ok, a bit small for such a long flight, but I'm very familiar with the 737 used ( I fly it often between SFO and SAN) service was ok-nothing special. If I drank alcohol I guess I would be happy with free choices. the plane was HOT and even the FA commented on it. They tried to get it cooler, but it never happened.

I have flown on many airlines all over the world, and this plane flight was the most uncomfortable I have ever experienced.

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

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