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Cheap flights from Montreal to Washington, D.C. from C$ 193

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montreal to Washington, D.C. departing on 18/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Porter Airlines Logo
11:25 a.m. - 5:14 p.m.
YUL
-
IAD
5h 49m
1 stop
Porter Airlines Logo
4:05 p.m. - 10:10 p.m.
IAD
-
YUL
6h 05m
1 stop
C$ 365Porter Airlines
Wed, 29 Apr - Sun, 10 May
Porter Airlines Logo
6:45 a.m. - 10:22 a.m.
YUL
-
IAD
3h 37m
1 stop
Porter Airlines Logo
6:30 p.m. - 10:45 p.m.
IAD
-
YUL
4h 15m
1 stop
C$ 371Porter Airlines
Thu, 26 Feb - Sun, 1 Mar
Porter Airlines Logo
11:25 a.m. - 5:14 p.m.
YUL
-
IAD
5h 49m
1 stop
Porter Airlines Logo
11:40 a.m. - 5:45 p.m.
IAD
-
YUL
6h 05m
1 stop
C$ 374Porter Airlines
Fri, 27 Feb - Mon, 2 Mar
Porter Airlines Logo
8:55 a.m. - 12:29 p.m.
YUL
-
IAD
3h 34m
1 stop
Porter Airlines Logo
6:30 p.m. - 10:45 p.m.
IAD
-
YUL
4h 15m
1 stop
C$ 377Porter Airlines
Sat, 18 Apr - Mon, 20 Apr
Porter Airlines Logo
11:25 a.m. - 5:14 p.m.
YUL
-
IAD
5h 49m
1 stop
Porter Airlines Logo
11:40 a.m. - 4:30 p.m.
IAD
-
YUL
4h 50m
1 stop
C$ 378Porter Airlines
Fri, 3 Apr - Tue, 7 Apr
Multiple Airlines Logo
6:45 a.m. - 10:22 a.m.
YUL
-
IAD
3h 37m
1 stop
Multiple Airlines Logo
9:45 a.m. - 11:30 a.m.
IAD
-
YUL
1h 45mdirect
C$ 385Multiple Airlines
Thu, 26 Feb - Sun, 1 Mar
Multiple Airlines Logo
6:45 a.m. - 10:24 a.m.
YUL
-
IAD
3h 39m
1 stop
Multiple Airlines Logo
9:55 a.m. - 11:38 a.m.
IAD
-
YUL
1h 43mdirect
C$ 388Multiple Airlines
Thu, 16 Apr - Fri, 17 Apr
Multiple Airlines Logo
6:45 a.m. - 10:22 a.m.
YUL
-
IAD
3h 37m
1 stop
Multiple Airlines Logo
9:45 a.m. - 11:30 a.m.
IAD
-
YUL
1h 45mdirect
C$ 389Multiple Airlines
Thu, 26 Feb - Sun, 1 Mar
Air Canada Logo
5:50 p.m. - 7:40 p.m.
YUL
-
IAD
1h 50mdirect
Air Canada Logo
9:55 a.m. - 11:38 a.m.
IAD
-
YUL
1h 43mdirect
C$ 391Air Canada
Thu, 23 Apr - Sun, 26 Apr
Porter Airlines Logo
6:50 a.m. - 10:24 a.m.
YUL
-
IAD
3h 34m
1 stop
Porter Airlines Logo
11:40 a.m. - 4:30 p.m.
IAD
-
YUL
4h 50m
1 stop
C$ 393Porter Airlines
Mon, 2 Mar - Thu, 5 Mar

Porter Airlines flights from Montreal to Washington, D.C. Dulles Intl Airport

Our best Porter Airlines deals on Montreal to Washington, D.C. Dulles Intl Airport flight tickets
Porter Airlines
29 Apr
YUL11:25 a.m.Montreal Pierre Elliott Trudeau Intl
5h 49m
1 stop
IAD5:14 p.m.Washington, D.C. Dulles Intl
10 May
IAD4:05 p.m.Washington, D.C. Dulles Intl
6h 05m
1 stop
YUL10:10 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 365
Porter Airlines
26 Feb
YUL6:45 a.m.Montreal Pierre Elliott Trudeau Intl
3h 37m
1 stop
IAD10:22 a.m.Washington, D.C. Dulles Intl
1 Mar
IAD6:30 p.m.Washington, D.C. Dulles Intl
4h 15m
1 stop
YUL10:45 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 371
Porter Airlines
27 Feb
YUL11:25 a.m.Montreal Pierre Elliott Trudeau Intl
5h 49m
1 stop
IAD5:14 p.m.Washington, D.C. Dulles Intl
2 Mar
IAD11:40 a.m.Washington, D.C. Dulles Intl
6h 05m
1 stop
YUL5:45 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 374

Air Canada flights from Montreal to Washington, D.C. Dulles Intl Airport

Our best Air Canada deals on Montreal to Washington, D.C. Dulles Intl Airport flight tickets
Air Canada
23 Apr
YUL5:50 p.m.Montreal Pierre Elliott Trudeau Intl
1h 50m
IAD7:40 p.m.Washington, D.C. Dulles Intl
26 Apr
IAD9:55 a.m.Washington, D.C. Dulles Intl
1h 43m
YUL11:38 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 391
Air Canada
14 Apr
YUL5:50 p.m.Montreal Pierre Elliott Trudeau Intl
1h 50m
IAD7:40 p.m.Washington, D.C. Dulles Intl
24 Apr
IAD9:55 a.m.Washington, D.C. Dulles Intl
1h 43m
YUL11:38 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 421
Air Canada
16 Apr
YUL5:50 p.m.Montreal Pierre Elliott Trudeau Intl
1h 50m
IAD7:40 p.m.Washington, D.C. Dulles Intl
17 Apr
IAD9:55 a.m.Washington, D.C. Dulles Intl
1h 43m
YUL11:38 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 433

momondo Fare Finder

 
Customize your flight search to find flights from Montreal to Washington, D.C. Dulles Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 96,600 searches. Data last updated 3 February 2026.
Use the filters below to find and compare flights from Montreal to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Wed 29/4

11:25 a.m.-5:14 p.m.

1 stop5h 49m

Washington, D.C. Dulles Intl

Sun 10/5

4:05 p.m.-10:10 p.m.

1 stop6h 05m

C$ 365

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 26/2

6:45 a.m.-10:22 a.m.

1 stop3h 37m

Washington, D.C. Dulles Intl

Sun 1/3

6:30 p.m.-10:45 p.m.

1 stop4h 15m

C$ 371

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 27/2

11:25 a.m.-5:14 p.m.

1 stop5h 49m

Washington, D.C. Dulles Intl

Mon 2/3

11:40 a.m.-5:45 p.m.

1 stop6h 05m

C$ 374

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Sat 18/4

8:55 a.m.-12:29 p.m.

1 stop3h 34m

Washington, D.C. Dulles Intl

Mon 20/4

6:30 p.m.-10:45 p.m.

1 stop4h 15m

C$ 377

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 3/4

11:25 a.m.-5:14 p.m.

1 stop5h 49m

Washington, D.C. Dulles Intl

Tue 7/4

11:40 a.m.-4:30 p.m.

1 stop4h 50m

C$ 378

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 26/2

6:45 a.m.-10:22 a.m.

1 stop3h 37m

Washington, D.C. Dulles Intl

Sun 1/3

9:45 a.m.-11:30 a.m.

Nonstop1h 45m

C$ 385

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 16/4

6:45 a.m.-10:24 a.m.

1 stop3h 39m

Washington, D.C. Dulles Intl

Fri 17/4

9:55 a.m.-11:38 a.m.

Nonstop1h 43m

C$ 388

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 26/2

6:45 a.m.-10:22 a.m.

1 stop3h 37m

Washington, D.C. Dulles Intl

Sun 1/3

9:45 a.m.-11:30 a.m.

Nonstop1h 45m

C$ 389

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 23/4

5:50 p.m.-7:40 p.m.

Nonstop1h 50m

Washington, D.C. Dulles Intl

Sun 26/4

9:55 a.m.-11:38 a.m.

Nonstop1h 43m

C$ 391

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Mon 2/3

6:50 a.m.-10:24 a.m.

1 stop3h 34m

Washington, D.C. Dulles Intl

Thu 5/3

11:40 a.m.-4:30 p.m.

1 stop4h 50m

C$ 393

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Montreal to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Montreal and Washington, D.C. Dulles Intl Airport?

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

The cheapest month to fly to Washington, D.C. Dulles Intl Airport from Montreal is in March. Flight prices, which tend to average around C$ 344, are often lower during this time because this is during the off-season. If you don’t want to visit Washington, D.C. Dulles Intl Airport in March, then you should wait until February to fly from Montreal, when ticket prices are also cheap, with an average price of C$ 367.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

According to our data, Saturday is the cheapest day to fly to Washington, D.C. Dulles Intl Airport from Montreal. The lowest ticket price found for a Saturday departure recently was C$ 775. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Washington, D.C. Dulles Intl Airport on Sunday is C$ 1,194.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our most recent data shows that the best time of day to fly to Washington, D.C. Dulles Intl Airport is in the afternoon. Flights from Montreal to Washington, D.C. Dulles Intl Airport during this time can be as low as C$ 785. In the evening is when there is more demand to fly to Washington, D.C. Dulles Intl Airport, so prices are often more expensive at around C$ 1,087 per ticket.

What is the cheapest Montreal to Washington, D.C. Dulles Intl flight route?

Fly from Montreal Pierre Elliott Trudeau Intl to Washington, D.C. Dulles Intl for the best Montreal - Washington, D.C. Dulles Intl flight prices

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Montreal when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around C$ 422 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Montreal for as low as C$ 290 on momondo.

What cabin class options are available on Montreal to Washington, D.C. Dulles Intl flights?

There are 4 cabin classes available to choose from on Montreal to Washington, D.C. Dulles Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Montreal to Washington, D.C. Dulles Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Montreal to Washington, D.C. Dulles Intl Airport.

How have Montreal to Washington, D.C. Dulles Intl Airport flight prices changed over time?

As of February 2026, prices for Montreal to Washington, D.C. Dulles Intl Airport flights are approximately 7% more expensive when compared to flights at the same time last year.

When to book flights from Montreal to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Montreal to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Montreal to Washington, D.C. Dulles Intl Airport (YMQ to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montreal to Washington, D.C. Dulles Intl Airport

Best price found

C$ 327

Fastest flight time

1h 54m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Montreal in the past 72 hours is C$ 327. The best round-trip flight deal from Montreal to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is C$ 487.
The fastest flight from Montreal to Washington, D.C. Dulles Intl Airport takes 1h 54m
Direct flights go from Montreal to Washington, D.C. Dulles Intl Airport every day.
Search flight deals

  • How far is Montreal to Washington, D.C. Dulles Intl by plane?

    The straight-line distance from Montreal to Washington, D.C. Dulles Intl is 794.7 km. In terms of flight time, this usually takes a little over 1h 54m.

  • When did momondo last update prices for flights from Montreal to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Montreal to Washington, D.C. Dulles Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Montreal to Washington, D.C. Dulles Intl Airport?

  • How old do you have to be to fly from Montreal to Washington, D.C. Dulles Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Montreal to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Montreal to Washington, D.C. Dulles Intl Airport?

  • What is the most popular airline from Montreal to Washington, D.C. Dulles Intl Airport?

Best airlines flying from Montreal to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Montreal to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Porter AirlinesPriceFrom C$ 296Free CancellationRating
7.9
412 reviews
Search Porter Airlines flights
Air CanadaPriceFrom C$ 329Free CancellationRating
7.1
10,684 reviews
Search Air Canada flights
United AirlinesPriceFrom C$ 359Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights

  • United Airlines Flights From Montreal to Washington, D.C. Dulles Intl Airport

    United Airlines operates around 18 flights from Montreal to Washington, D.C. Dulles Intl Airport every week. The average price of these flights found in the last 72 hours has been C$ 508, but momondo users have found United Airlines deals from Montreal to Washington, D.C. Dulles Intl Airport from as low as C$ 359 round-trip. United Airlines has been scored 7.4/10 in 9,236 reviews.

  • Air Canada Flights From Montreal to Washington, D.C. Dulles Intl Airport

    Another popular option for Montreal to Washington, D.C. Dulles Intl Airport flights is Air Canada (7.1/10, 10,684 ratings). Air Canada flies from Montreal to Washington, D.C. Dulles Intl Airport around 18 times per week, with deals starting from C$ 329 round-trip and rising to an average price of around C$ 466.

Travelling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Gettysburg
Alexandria
Gaithersburg
Fairfax
Linthicum Heights
Bethesda
Silver Spring
National Harbor
Reston
Laurel
Herndon
Chantilly
Winchester
Arlington
Leesburg
Fredericksburg
Ashburn
Manassas
Woodbridge
Rockville

Why use momondo?

Why should I use momondo to find a flight deal from Montreal to Washington, D.C.?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Montreal to Washington, D.C. . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Montreal to Washington, D.C. with flexible booking policies on momondo?

momondo does allow users to show only those flights to Washington, D.C. from Montreal which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Montreal to Washington, D.C.?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from Montreal.

I’m not ready to book a flight from Montreal to Washington, D.C. right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Washington, D.C. from Montreal. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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