Cheap flights from Montreal to Washington, D.C. from $154

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 9/25. 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

United Airlines Logo
8:00 pm - 9:51 pmYUL-DCA
1h 51mnonstop
United Airlines Logo
7:25 am - 1:54 pmDCA-YUL
6h 29m1 stop
$241United Airlines
Find Deal
Tue, Sep 30 - Wed, Oct 1
Porter Airlines Logo
10:45 am - 3:06 pmYUL-IAD
4h 21m1 stop
Porter Airlines Logo
11:35 am - 4:00 pmIAD-YUL
4h 25m1 stop
$244Porter Airlines
Find Deal
Thu, Sep 4 - Sun, Sep 7
Air Canada Logo
9:15 am - 1:38 pmYUL-IAD
4h 23m1 stop
Air Canada Logo
10:20 am - 3:20 pmIAD-YUL
5h 00m1 stop
$245Air Canada
Find Deal
Sat, Oct 11 - Sat, Oct 18
Porter Airlines Logo
10:45 am - 3:06 pmYUL-IAD
4h 21m1 stop
Porter Airlines Logo
4:20 pm - 10:15 pmIAD-YUL
5h 55m1 stop
$246Porter Airlines
Find Deal
Thu, Sep 18 - Thu, Sep 25
Air Canada Logo
7:10 pm - 9:05 pmYUL-IAD
1h 55mnonstop
Air Canada Logo
9:35 am - 11:28 amIAD-YUL
1h 53mnonstop
$248Air Canada
Find Deal
Thu, Sep 25 - Mon, Sep 29
United Airlines Logo
2:20 pm - 4:18 pmYUL-IAD
1h 58mnonstop
United Airlines Logo
1:00 pm - 3:00 pmIAD-YUL
2h 00mnonstop
$276United Airlines
Find Deal
Thu, Sep 4 - Sun, Sep 7
Delta Logo
6:00 am - 2:31 pmYUL-IAD
8h 31m2 stops
Delta Logo
6:00 am - 5:50 pmIAD-YUL
11h 50m2 stops
$296Delta
Find Deal
Wed, Sep 10 - Wed, Sep 24
Delta Logo
7:00 am - 4:07 pmYUL-IAD
9h 07m2 stops
Delta Logo
12:35 pm - 11:29 pmIAD-YUL
10h 54m2 stops
$297Delta
Find Deal
Wed, Sep 24 - Sat, Oct 4
WestJet Logo
6:45 am - 6:59 pmYUL-DCA
12h 14m2 stops
WestJet Logo
6:10 am - 11:18 pmDCA-YUL
17h 08m1 stop
$323WestJet
Find Deal
Thu, Sep 18 - Thu, Sep 25
WestJet Logo
6:45 am - 5:57 pmYUL-DCA
11h 12m2 stops
WestJet Logo
1:40 pm - 9:57 pmDCA-YUL
8h 17m1 stop
$334WestJet
Find Deal
Thu, Sep 25 - Mon, Sep 29

Porter Airlines flights from Montreal to Washington, D.C.

Our best Porter Airlines deals on Montreal to Washington, D.C. flight tickets
Porter Airlines
Sep 4
YUL10:45 amMontreal Pierre Elliott Trudeau Intl
4h 21m
1 stop
IAD3:06 pmWashington, D.C. Dulles Intl
Sep 7
IAD11:35 amWashington, D.C. Dulles Intl
4h 25m
1 stop
YUL4:00 pmMontreal Pierre Elliott Trudeau Intl
Porter Airlines
Sep 18
YUL10:45 amMontreal Pierre Elliott Trudeau Intl
4h 21m
1 stop
IAD3:06 pmWashington, D.C. Dulles Intl
Sep 25
IAD4:20 pmWashington, D.C. Dulles Intl
5h 55m
1 stop
YUL10:15 pmMontreal Pierre Elliott Trudeau Intl
Porter Airlines
Sep 27
YUL10:45 amMontreal Pierre Elliott Trudeau Intl
4h 21m
1 stop
IAD3:06 pmWashington, D.C. Dulles Intl
Sep 30
IAD4:20 pmWashington, D.C. Dulles Intl
3h 50m
1 stop
YUL8:10 pmMontreal Pierre Elliott Trudeau Intl

United Airlines flights from Montreal to Washington, D.C.

Our best United Airlines deals on Montreal to Washington, D.C. flight tickets
United Airlines
Sep 30
YUL8:00 pmMontreal Pierre Elliott Trudeau Intl
1h 51m
DCA9:51 pmWashington, D.C. Reagan-National
Oct 1
DCA7:25 amWashington, D.C. Reagan-National
6h 29m
1 stop
YUL1:54 pmMontreal Pierre Elliott Trudeau Intl
United Airlines
Sep 4
YUL2:20 pmMontreal Pierre Elliott Trudeau Intl
1h 58m
IAD4:18 pmWashington, D.C. Dulles Intl
Sep 7
IAD1:00 pmWashington, D.C. Dulles Intl
2h 00m
YUL3:00 pmMontreal Pierre Elliott Trudeau Intl
United Airlines
Sep 24
YUL2:20 pmMontreal Pierre Elliott Trudeau Intl
1h 58m
IAD4:18 pmWashington, D.C. Dulles Intl
Oct 1
IAD8:30 amWashington, D.C. Dulles Intl
4h 39m
1 stop
YUL1:09 pmMontreal Pierre Elliott Trudeau Intl

momondo Fare Finder

 
Customize your flight search to find flights from Montreal to Washington, D.C. 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 21, 2025.
Use the filters below to find and compare flights from Montreal to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MontrealWashington, D.C.

YUL - DCA

YULDCA

Montreal Pierre Elliott Trudeau Intl

Tue 9/30

8:00 pm-9:51 pm

Nonstop1h 51m

Washington, D.C. Reagan-National

Wed 10/1

7:25 am-1:54 pm

1 stop6h 29m

$241

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 9/4

10:45 am-3:06 pm

1 stop4h 21m

Washington, D.C. Dulles Intl

Sun 9/7

11:35 am-4:00 pm

1 stop4h 25m

$244

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Sat 10/11

9:15 am-1:38 pm

1 stop4h 23m

Washington, D.C. Dulles Intl

Sat 10/18

10:20 am-3:20 pm

1 stop5h 00m

$245

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 9/18

10:45 am-3:06 pm

1 stop4h 21m

Washington, D.C. Dulles Intl

Thu 9/25

4:20 pm-10:15 pm

1 stop5h 55m

$246

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 9/25

7:10 pm-9:05 pm

Nonstop1h 55m

Washington, D.C. Dulles Intl

Mon 9/29

9:35 am-11:28 am

Nonstop1h 53m

$248

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 9/4

2:20 pm-4:18 pm

Nonstop1h 58m

Washington, D.C. Dulles Intl

Sun 9/7

1:00 pm-3:00 pm

Nonstop2h 00m

$276

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Wed 9/10

6:00 am-2:31 pm

2 stops8h 31m

Washington, D.C. Dulles Intl

Wed 9/24

6:00 am-5:50 pm

2 stops11h 50m

$296

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Wed 9/24

7:00 am-4:07 pm

2 stops9h 07m

Washington, D.C. Dulles Intl

Sat 10/4

12:35 pm-11:29 pm

2 stops10h 54m

$297

MontrealWashington, D.C.

YUL - DCA

YULDCA

Montreal Pierre Elliott Trudeau Intl

Thu 9/18

6:45 am-6:59 pm

2 stops12h 14m

Washington, D.C. Reagan-National

Thu 9/25

6:10 am-11:18 pm

1 stop17h 08m

$323

MontrealWashington, D.C.

YUL - DCA

YULDCA

Montreal Pierre Elliott Trudeau Intl

Thu 9/25

6:45 am-5:57 pm

2 stops11h 12m

Washington, D.C. Reagan-National

Mon 9/29

1:40 pm-9:57 pm

1 stop8h 17m

$334

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.

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.?

The month of May is, on average, the cheapest month to fly to Washington, D.C. from Montreal, with most prices found around $285. If you’re not able to fly to Washington, D.C. in May, then August is your next best option. Flight prices from Montreal to Washington, D.C. during August average around $302.

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

On average, the least expensive day to fly to Washington, D.C. from Montreal is on a Thursday. momondo users have found tickets for Thursday departures for as low as $337. However, this price may fluctuate depending on the airline, the season, and holidays. 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. for around $571.

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

In the afternoon is the cheapest time of day to fly from Montreal to Washington, D.C. when you can find flight prices for as low as $357. Flying to Washington, D.C. in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $431. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

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

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

You are more likely to see cheaper flights to Washington, D.C. from Montreal when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. 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. from Montreal for as low as $232 on momondo.

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

There are 4 cabin classes available to choose from on Montreal to Washington, D.C. 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. flights?

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

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

As of August 2025, prices for Montreal to Washington, D.C. flights are approximately 0% more expensive when compared to flights at the same time last year.

When to book flights from Montreal to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from Montreal to Washington, D.C. 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. (YMQ to WAS) flight deals and tips

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

Best Price Found

$231

Fastest flight time

1h 46m

Direct flights

Every day

Airports in Washington, D.C.

2 airports
The best one-way flight to Washington, D.C. from Montreal in the past 72 hours is $231. The best round-trip flight deal from Montreal to Washington, D.C. found on momondo in the last 72 hours is $269.
The fastest flight from Montreal to Washington, D.C. takes 1h 46m
Direct flights go from Montreal to Washington, D.C. every day.
There are 2 airports near Washington, D.C.: Washington, D.C. Reagan-National (DCA), Washington, D.C. Dulles Intl (IAD)
  • How far is Montreal to Washington, D.C. by plane?

    There are 488.5 mi between Montreal and Washington, D.C.. In terms of flight time, this usually takes a little over 1h 50m.

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

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Montreal to Washington, D.C..

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

    The travel and health documents you'll need for your trip to Washington, D.C. 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.. 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.?

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

Best airlines flying from Montreal to Washington, D.C.

Compare and see reviews for airlines that fly from Montreal to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
Porter AirlinesPriceFrom $202Free CancellationRating
7.9
341 reviews
Search Porter Airlines flights
Air CanadaPriceFrom $220Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
United AirlinesPriceFrom $246Free CancellationRating
7.4
8,930 reviews
Search United Airlines flights
DeltaPriceFrom $275Free CancellationRating
7.9
7,981 reviews
Search Delta flights
WestJetPriceFrom $328Free CancellationRating
7.2
3,044 reviews
Search WestJet flights
  • United Airlines Flights From Montreal to Washington, D.C.

    United Airlines operates around 34 flights from Montreal to Washington, D.C. every week. The average price of these flights found in the last 72 hours has been $531, but momondo users have found United Airlines deals from Montreal to Washington, D.C. from as low as $246 round-trip. United Airlines has been scored 7.4/10 in 8,930 reviews.

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

    Air Canada is also a popular choice for this route. Air Canada flight deals for Montreal to Washington, D.C. start from as low as $220 round-trip, depending on your selected dates, with average Air Canada deals seen on momondo around $332. Air Canada operates 34 flights to Washington, D.C. from Montreal in an average week. Users have rated it 7.1/10 across 10,000 reviews.

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
Woodbridge
Waldorf
Tysons
Silver Spring
Laurel
Colonial Beach
Fredericksburg
Manassas
Towson
Rockville
Gaithersburg
Reston
Fairfax
Glen Burnie
Springfield
Linthicum Heights

Why use momondo?

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

It is quick and easy to find Montreal to Washington, D.C. flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington, D.C. that suits you.

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

Yes. momondo allows you to filter the results for Montreal to Washington, D.C. flights to just show those with flexible booking policies.

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?

Of course. momondo tracks the price of Montreal to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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1 adult
Tue 8/26
Tue 9/2

Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.