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Cheap flights from Montreal to Washington, D.C. from $168

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 11/11. 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

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Porter Airlines Logo
1:40 pm - 5:14 pmYUL-IAD
3h 34m1 stop
Porter Airlines Logo
11:40 am - 3:20 pmIAD-YUL
3h 40m1 stop
$242Porter Airlines
Find Deal
Fri, Nov 21 - Thu, Nov 27
Porter Airlines Logo
6:45 am - 10:24 amYUL-IAD
3h 39m1 stop
Porter Airlines Logo
11:40 am - 7:15 pmIAD-YUL
7h 35m1 stop
$246Porter Airlines
Find Deal
Thu, Jan 15 - Mon, Jan 19
Porter Airlines Logo
6:45 am - 10:24 amYUL-IAD
3h 39m1 stop
Porter Airlines Logo
6:30 pm - 10:45 pmIAD-YUL
4h 15m1 stop
$253Porter Airlines
Find Deal
Sun, Nov 16 - Tue, Nov 18
Multiple Airlines Logo
7:00 pm - 8:54 pmYUL-IAD
1h 54mnonstop
Multiple Airlines Logo
6:30 pm - 10:45 pmIAD-YUL
4h 15m1 stop
$270Multiple Airlines
Find Deal
Tue, Nov 25 - Tue, Dec 2
Air Canada Logo
7:00 pm - 8:59 pmYUL-IAD
1h 59mnonstop
Air Canada Logo
9:45 am - 11:38 amIAD-YUL
1h 53mnonstop
$278Air Canada
Find Deal
Thu, Jan 15 - Mon, Jan 19
Air Canada Logo
7:00 pm - 8:54 pmYUL-IAD
1h 54mnonstop
Air Canada Logo
9:45 am - 11:38 amIAD-YUL
1h 53mnonstop
$279Air Canada
Find Deal
Tue, Nov 25 - Tue, Dec 2
United Airlines Logo
9:15 am - 11:35 amYUL-IAD
2h 20mnonstop
United Airlines Logo
8:20 am - 2:00 pmIAD-YUL
5h 40m1 stop
$292United Airlines
Find Deal
Wed, Jan 7 - Thu, Jan 15
Multiple Airlines Logo
6:00 am - 4:46 pmYUL-IAD
10h 46m1 stop
Multiple Airlines Logo
11:40 am - 4:30 pmIAD-YUL
4h 50m1 stop
$303Multiple Airlines
Find Deal
Tue, Jan 6 - Thu, Jan 15
United Airlines Logo
2:13 pm - 4:21 pmYUL-IAD
2h 08mnonstop
United Airlines Logo
8:45 am - 1:28 pmIAD-YUL
4h 43m1 stop
$304United Airlines
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Fri, Nov 21 - Tue, Nov 25
Delta Logo
9:34 am - 8:37 pmYUL-IAD
11h 03m2 stops
Delta Logo
7:00 am - 1:42 pmIAD-YUL
6h 42m1 stop
$310Delta
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Wed, Jan 7 - Sun, Jan 11

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
Jan 15
YUL7:00 pmMontreal Pierre Elliott Trudeau Intl
1h 59m
IAD8:59 pmWashington, D.C. Dulles Intl
Jan 19
IAD9:45 amWashington, D.C. Dulles Intl
1h 53m
YUL11:38 amMontreal Pierre Elliott Trudeau Intl
$278
Find similar
Air Canada
Nov 25
YUL7:00 pmMontreal Pierre Elliott Trudeau Intl
1h 54m
IAD8:54 pmWashington, D.C. Dulles Intl
Dec 2
IAD9:45 amWashington, D.C. Dulles Intl
1h 53m
YUL11:38 amMontreal Pierre Elliott Trudeau Intl
$279
Find similar
Air Canada
Jan 7
YUL7:00 pmMontreal Pierre Elliott Trudeau Intl
1h 54m
IAD8:54 pmWashington, D.C. Dulles Intl
Jan 10
IAD9:45 amWashington, D.C. Dulles Intl
1h 53m
YUL11:38 amMontreal Pierre Elliott Trudeau Intl
$282
Find similar

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
Nov 21
YUL1:40 pmMontreal Pierre Elliott Trudeau Intl
3h 34m
1 stop
IAD5:14 pmWashington, D.C. Dulles Intl
Nov 27
IAD11:40 amWashington, D.C. Dulles Intl
3h 40m
1 stop
YUL3:20 pmMontreal Pierre Elliott Trudeau Intl
$242
Find similar
Porter Airlines
Jan 15
YUL6:45 amMontreal Pierre Elliott Trudeau Intl
3h 39m
1 stop
IAD10:24 amWashington, D.C. Dulles Intl
Jan 19
IAD11:40 amWashington, D.C. Dulles Intl
7h 35m
1 stop
YUL7:15 pmMontreal Pierre Elliott Trudeau Intl
$246
Find similar
Porter Airlines
Nov 16
YUL6:45 amMontreal Pierre Elliott Trudeau Intl
3h 39m
1 stop
IAD10:24 amWashington, D.C. Dulles Intl
Nov 18
IAD6:30 pmWashington, D.C. Dulles Intl
4h 15m
1 stop
YUL10:45 pmMontreal Pierre Elliott Trudeau Intl
$253
Find similar

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 832,500 searches. Data last updated October 30, 2025.
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

Fri 11/21

1:40 pm-5:14 pm

1 stop3h 34m

Washington, D.C. Dulles Intl

Thu 11/27

11:40 am-3:20 pm

1 stop3h 40m

$242

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 1/15

6:45 am-10:24 am

1 stop3h 39m

Washington, D.C. Dulles Intl

Mon 1/19

11:40 am-7:15 pm

1 stop7h 35m

$246

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Sun 11/16

6:45 am-10:24 am

1 stop3h 39m

Washington, D.C. Dulles Intl

Tue 11/18

6:30 pm-10:45 pm

1 stop4h 15m

$253

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Tue 11/25

7:00 pm-8:54 pm

Nonstop1h 54m

Washington, D.C. Dulles Intl

Tue 12/2

6:30 pm-10:45 pm

1 stop4h 15m

$270

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 1/15

7:00 pm-8:59 pm

Nonstop1h 59m

Washington, D.C. Dulles Intl

Mon 1/19

9:45 am-11:38 am

Nonstop1h 53m

$278

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Tue 11/25

7:00 pm-8:54 pm

Nonstop1h 54m

Washington, D.C. Dulles Intl

Tue 12/2

9:45 am-11:38 am

Nonstop1h 53m

$279

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Wed 1/7

9:15 am-11:35 am

Nonstop2h 20m

Washington, D.C. Dulles Intl

Thu 1/15

8:20 am-2:00 pm

1 stop5h 40m

$292

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Tue 1/6

6:00 am-4:46 pm

1 stop10h 46m

Washington, D.C. Dulles Intl

Thu 1/15

11:40 am-4:30 pm

1 stop4h 50m

$303

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 11/21

2:13 pm-4:21 pm

Nonstop2h 08m

Washington, D.C. Dulles Intl

Tue 11/25

8:45 am-1:28 pm

1 stop4h 43m

$304

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Wed 1/7

9:34 am-8:37 pm

2 stops11h 03m

Washington, D.C. Dulles Intl

Sun 1/11

7:00 am-1:42 pm

1 stop6h 42m

$310

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest 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 cheapest month to fly to Washington, D.C. Dulles Intl Airport?

In general, February is the cheapest month to fly from Montreal to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $260. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $266.

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

Our data shows that Saturday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $466. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Montreal to Washington, D.C. Dulles Intl Airport for around $849.

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

Flying to Washington, D.C. Dulles Intl Airport from Montreal in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $334 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $686 on average. Flights to Washington, D.C. Dulles Intl Airport from Montreal in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $328 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 $231 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?

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

$256

Fastest flight time

1h 50m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Montreal in the past 72 hours is $256. The best round-trip flight deal from Montreal to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $371.
The fastest flight from Montreal to Washington, D.C. Dulles Intl Airport takes 1h 50m
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?

    Montreal and Washington, D.C. Dulles Intl are 493.8 mi apart from one another. By plane, this route typically takes 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 offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify 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 $197Free CancellationRating
8.0
384 reviews
Search Porter Airlines flights
Air CanadaPriceFrom $220Free CancellationRating
7.1
10,377 reviews
Search Air Canada flights
United AirlinesPriceFrom $246Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights

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

    United Airlines flight deals from Montreal to Washington, D.C. Dulles Intl Airport start from $246 round-trip. Over the 10 United Airlines flights for this route in a normal week, average airfare is usually $481 round-trip - but some users have found much cheaper deals with momondo.

  • 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, 10,377 ratings). Air Canada flies from Montreal to Washington, D.C. Dulles Intl Airport around 10 times per week, with deals starting from $220 round-trip and rising to an average price of around $296.

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Manassas
Reston
Gaithersburg
Fairfax
Sterling

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Montreal to Washington, D.C.. momondo saves you time and could save you money on your trip.

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

Flights from Montreal to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Montreal to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Washington, D.C., momondo offers a useful price alert feature which will track prices for flights to Washington, D.C. from Montreal and alert you when they change.

An easier way to manage your Washington, D.C. Dulles Intl Airport trip

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