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Cheap flights from Montreal to Washington, D.C. from $127

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 10/19. 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

Porter Airlines Logo
6:55 am - 10:41 amYUL-IAD
3h 46m1 stop
Porter Airlines Logo
4:20 pm - 8:10 pmIAD-YUL
3h 50m1 stop
$247Porter Airlines
Find Deal
Fri, Aug 29 - Fri, Sep 5
Porter Airlines Logo
10:45 am - 2:56 pmYUL-IAD
4h 11m1 stop
Porter Airlines Logo
11:35 am - 4:00 pmIAD-YUL
4h 25m1 stop
$248Porter Airlines
Find Deal
Thu, Aug 14 - Mon, Aug 18
Porter Airlines Logo
10:45 am - 3:06 pmYUL-IAD
4h 21m1 stop
Porter Airlines Logo
4:20 pm - 8:10 pmIAD-YUL
3h 50m1 stop
$249Porter Airlines
Find Deal
Fri, Oct 10 - Mon, Oct 13
United Airlines Logo
9:15 am - 11:13 amYUL-IAD
1h 58mnonstop
United Airlines Logo
1:00 pm - 3:00 pmIAD-YUL
2h 00mnonstop
$269United Airlines
Find Deal
Fri, Aug 29 - Fri, Sep 5
Air Canada Logo
7:00 pm - 8:59 pmYUL-IAD
1h 59mnonstop
Air Canada Logo
9:55 am - 11:48 amIAD-YUL
1h 53mnonstop
$271Air Canada
Find Deal
Thu, Jan 15 - Mon, Jan 19
Air Canada Logo
7:00 pm - 8:59 pmYUL-IAD
1h 59mnonstop
Air Canada Logo
9:55 am - 11:48 amIAD-YUL
1h 53mnonstop
$277Air Canada
Find Deal
Sat, Nov 22 - Sun, Nov 30
United Airlines Logo
9:15 am - 11:13 amYUL-IAD
1h 58mnonstop
United Airlines Logo
6:20 am - 1:09 pmIAD-YUL
6h 49m1 stop
$279United Airlines
Find Deal
Wed, Aug 27 - Sun, Aug 31
Logo
10:45 am - 2:56 pmYUL-IAD
4h 11m1 stop
Logo
9:35 am - 11:30 amIAD-YUL
1h 55mnonstop
$287
Find Deal
Thu, Aug 14 - Mon, Aug 18
Logo
8:55 am - 3:06 pmYUL-IAD
6h 11m1 stop
Logo
9:35 am - 11:28 amIAD-YUL
1h 53mnonstop
$290
Find Deal
Mon, Sep 15 - Mon, Sep 22
WestJet Logo
7:00 am - 11:17 pmYUL-IAD
16h 17m1 stop
WestJet Logo
3:31 pm - 11:56 pmIAD-YUL
8h 25m1 stop
$317WestJet
Find Deal
Sat, Sep 27 - Mon, Sep 29

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

Our best United Airlines deals on Montreal to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
Aug 29
YUL9:15 amMontreal Pierre Elliott Trudeau Intl
1h 58m
IAD11:13 amWashington, D.C. Dulles Intl
Sep 5
IAD1:00 pmWashington, D.C. Dulles Intl
2h 00m
YUL3:00 pmMontreal Pierre Elliott Trudeau Intl
$269
Find similar
United Airlines
Aug 13
YUL9:15 amMontreal Pierre Elliott Trudeau Intl
1h 59m
IAD11:14 amWashington, D.C. Dulles Intl
Aug 19
IAD1:00 pmWashington, D.C. Dulles Intl
2h 00m
YUL3:00 pmMontreal Pierre Elliott Trudeau Intl
$270
Find similar
United Airlines
Aug 27
YUL9:15 amMontreal Pierre Elliott Trudeau Intl
1h 58m
IAD11:13 amWashington, D.C. Dulles Intl
Aug 31
IAD6:20 amWashington, D.C. Dulles Intl
6h 49m
1 stop
YUL1:09 pmMontreal Pierre Elliott Trudeau Intl
$279
Find similar

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

Our best Delta deals on Montreal to Washington, D.C. Dulles Intl Airport flight tickets
Delta
Aug 13
YUL12:47 pmMontreal Pierre Elliott Trudeau Intl
10h 34m
1 stop
IAD11:21 pmWashington, D.C. Dulles Intl
Aug 19
IAD10:07 amWashington, D.C. Dulles Intl
11h 41m
2 stops
YUL9:48 pmMontreal Pierre Elliott Trudeau Intl
$298
Find similar
Delta
Sep 13
YUL7:00 amMontreal Pierre Elliott Trudeau Intl
9h 27m
2 stops
IAD4:27 pmWashington, D.C. Dulles Intl
Sep 20
IAD6:00 amWashington, D.C. Dulles Intl
6h 00m
1 stop
YUL12:00 pmMontreal Pierre Elliott Trudeau Intl
$321
Find similar
Delta
Aug 12
YUL7:00 amMontreal Pierre Elliott Trudeau Intl
7h 31m
1 stop
IAD2:31 pmWashington, D.C. Dulles Intl
Aug 16
IAD6:15 pmWashington, D.C. Dulles Intl
5h 13m
1 stop
YUL11:28 pmMontreal Pierre Elliott Trudeau Intl
$361
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 August 1, 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 8/29

6:55 am-10:41 am

1 stop3h 46m

Washington, D.C. Dulles Intl

Fri 9/5

4:20 pm-8:10 pm

1 stop3h 50m

$247

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 8/14

10:45 am-2:56 pm

1 stop4h 11m

Washington, D.C. Dulles Intl

Mon 8/18

11:35 am-4:00 pm

1 stop4h 25m

$248

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 10/10

10:45 am-3:06 pm

1 stop4h 21m

Washington, D.C. Dulles Intl

Mon 10/13

4:20 pm-8:10 pm

1 stop3h 50m

$249

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 8/29

9:15 am-11:13 am

Nonstop1h 58m

Washington, D.C. Dulles Intl

Fri 9/5

1:00 pm-3:00 pm

Nonstop2h 00m

$269

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

9:55 am-11:48 am

Nonstop1h 53m

$271

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Sat 11/22

7:00 pm-8:59 pm

Nonstop1h 59m

Washington, D.C. Dulles Intl

Sun 11/30

9:55 am-11:48 am

Nonstop1h 53m

$277

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Wed 8/27

9:15 am-11:13 am

Nonstop1h 58m

Washington, D.C. Dulles Intl

Sun 8/31

6:20 am-1:09 pm

1 stop6h 49m

$279

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 8/14

10:45 am-2:56 pm

1 stop4h 11m

Washington, D.C. Dulles Intl

Mon 8/18

9:35 am-11:30 am

Nonstop1h 55m

$287

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Mon 9/15

8:55 am-3:06 pm

1 stop6h 11m

Washington, D.C. Dulles Intl

Mon 9/22

9:35 am-11:28 am

Nonstop1h 53m

$290

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Sat 9/27

7:00 am-11:17 pm

1 stop16h 17m

Washington, D.C. Dulles Intl

Mon 9/29

3:31 pm-11:56 pm

1 stop8h 25m

$317

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?

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 $433. 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 $797.

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 $367 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 $654 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 $341 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 $229 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

$127

Fastest flight time

1h 51m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Montreal in the past 72 hours is $127. The best round-trip flight deal from Montreal to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $247.
The fastest flight from Montreal to Washington, D.C. Dulles Intl Airport takes 1h 51m
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 55m.

  • 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 $202Free CancellationRating
8.0
318 reviews
Search Porter Airlines flights
Air CanadaPriceFrom $220Free CancellationRating
7.1
9,855 reviews
Search Air Canada flights
United AirlinesPriceFrom $225Free CancellationRating
7.4
8,904 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 $225 round-trip. Over the 21 United Airlines flights for this route in a normal week, average airfare is usually $436 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, 9,855 ratings). Air Canada flies from Montreal to Washington, D.C. Dulles Intl Airport around 21 times per week, with deals starting from $220 round-trip and rising to an average price of around $322.

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

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

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.

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