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Cheap flights from Montreal to Washington, D.C. from $135

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 3/16. 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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Find the cheapest flights from Montreal to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Porter Airlines Logo
1:40 pm - 5:14 pm
YUL
-
IAD
3h 34m
1 stop
Porter Airlines Logo
6:30 pm - 10:45 pm
IAD
-
YUL
4h 15m
1 stop
$250Porter Airlines
Thu, Apr 9 - Mon, Apr 13
Multiple Airlines Logo
6:45 am - 10:22 am
YUL
-
IAD
3h 37m
1 stop
Multiple Airlines Logo
1:31 pm - 8:14 pm
IAD
-
YUL
30h 43m
2 stops
$256Multiple Airlines
Thu, Feb 5 - Mon, Feb 9
Porter Airlines Logo
1:40 pm - 5:14 pm
YUL
-
IAD
3h 34m
1 stop
Porter Airlines Logo
6:30 pm - 10:45 pm
IAD
-
YUL
4h 15m
1 stop
$259Porter Airlines
Fri, Apr 17 - Wed, Apr 22
Porter Airlines Logo
6:45 am - 10:22 am
YUL
-
IAD
3h 37m
1 stop
Porter Airlines Logo
6:30 pm - 10:45 pm
IAD
-
YUL
4h 15m
1 stop
$260Porter Airlines
Thu, Feb 19 - Sun, Feb 22
Porter Airlines Logo
6:45 am - 10:24 am
YUL
-
IAD
3h 39m
1 stop
Porter Airlines Logo
11:40 am - 4:30 pm
IAD
-
YUL
4h 50m
1 stop
$266Porter Airlines
Thu, Mar 12 - Mon, Mar 16
Multiple Airlines Logo
8:00 am - 8:31 am
YUL
-
BWI
24h 31m
1 stop
Multiple Airlines Logo
1:00 pm - 4:22 pm
BWI
-
YUL
27h 22m
1 stop
$277Multiple Airlines
Sun, Feb 8 - Tue, Feb 10
Air Canada Logo
7:00 pm - 8:54 pm
YUL
-
IAD
1h 54mnonstop
Air Canada Logo
9:55 am - 11:40 am
IAD
-
YUL
1h 45mnonstop
$278Air Canada
Mon, Mar 2 - Tue, Mar 10
Air Canada Logo
8:25 am - 10:21 am
YUL
-
DCA
1h 56mnonstop
Air Canada Logo
6:00 am - 7:45 am
DCA
-
YUL
1h 45mnonstop
$278Air Canada
Sun, Feb 15 - Sat, Feb 28
Air Canada Logo
8:00 pm - 9:53 pm
YUL
-
DCA
1h 53mnonstop
Air Canada Logo
12:55 pm - 7:06 pm
DCA
-
YUL
6h 11m
1 stop
$281Air Canada
Thu, Apr 9 - Mon, Apr 13
Air Canada Logo
8:00 pm - 9:56 pm
YUL
-
DCA
1h 56mnonstop
Air Canada Logo
12:55 pm - 7:14 pm
DCA
-
YUL
6h 19m
1 stop
$287Air Canada
Fri, Mar 20 - Sun, Mar 22

Delta flights from Montreal to Washington, D.C.

Our best Delta deals on Montreal to Washington, D.C. flight tickets
Delta
Mar 6
YUL2:29 pmMontreal Pierre Elliott Trudeau Intl
9h 52m
2 stops
IAD12:21 amWashington, D.C. Dulles Intl
Mar 13
IAD7:18 amWashington, D.C. Dulles Intl
10h 13m
1 stop
YUL5:31 pmMontreal Pierre Elliott Trudeau Intl
$327
Delta
Feb 19
YUL6:00 amMontreal Pierre Elliott Trudeau Intl
12h 37m
2 stops
IAD6:37 pmWashington, D.C. Dulles Intl
Feb 26
IAD6:00 amWashington, D.C. Dulles Intl
12h 35m
2 stops
YUL6:35 pmMontreal Pierre Elliott Trudeau Intl
$328
Delta
Feb 5
YUL6:00 amMontreal Pierre Elliott Trudeau Intl
13h 09m
2 stops
IAD7:09 pmWashington, D.C. Dulles Intl
Feb 8
IAD6:00 amWashington, D.C. Dulles Intl
12h 37m
2 stops
YUL6:37 pmMontreal Pierre Elliott Trudeau Intl
$329

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

Our best Porter Airlines deals on Montreal to Washington, D.C. flight tickets
Porter Airlines
Apr 9
YUL1:40 pmMontreal Pierre Elliott Trudeau Intl
3h 34m
1 stop
IAD5:14 pmWashington, D.C. Dulles Intl
Apr 13
IAD6:30 pmWashington, D.C. Dulles Intl
4h 15m
1 stop
YUL10:45 pmMontreal Pierre Elliott Trudeau Intl
$250
Porter Airlines
Apr 17
YUL1:40 pmMontreal Pierre Elliott Trudeau Intl
3h 34m
1 stop
IAD5:14 pmWashington, D.C. Dulles Intl
Apr 22
IAD6:30 pmWashington, D.C. Dulles Intl
4h 15m
1 stop
YUL10:45 pmMontreal Pierre Elliott Trudeau Intl
$259
Porter Airlines
Feb 19
YUL6:45 amMontreal Pierre Elliott Trudeau Intl
3h 37m
1 stop
IAD10:22 amWashington, D.C. Dulles Intl
Feb 22
IAD6:30 pmWashington, D.C. Dulles Intl
4h 15m
1 stop
YUL10:45 pmMontreal Pierre Elliott Trudeau Intl
$260

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 January 22, 2026.
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 - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 4/9

1:40 pm-5:14 pm

1 stop3h 34m

Washington, D.C. Dulles Intl

Mon 4/13

6:30 pm-10:45 pm

1 stop4h 15m

$250

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 2/5

6:45 am-10:22 am

1 stop3h 37m

Washington, D.C. Dulles Intl

Mon 2/9

1:31 pm-8:14 pm

2 stops30h 43m

$256

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 4/17

1:40 pm-5:14 pm

1 stop3h 34m

Washington, D.C. Dulles Intl

Wed 4/22

6:30 pm-10:45 pm

1 stop4h 15m

$259

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 2/19

6:45 am-10:22 am

1 stop3h 37m

Washington, D.C. Dulles Intl

Sun 2/22

6:30 pm-10:45 pm

1 stop4h 15m

$260

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 3/12

6:45 am-10:24 am

1 stop3h 39m

Washington, D.C. Dulles Intl

Mon 3/16

11:40 am-4:30 pm

1 stop4h 50m

$266

MontrealBaltimore

YUL - BWI

YULBWI

Montreal Pierre Elliott Trudeau Intl

Sun 2/8

8:00 am-8:31 am

1 stop24h 31m

Baltimore/Washington

Tue 2/10

1:00 pm-4:22 pm

1 stop27h 22m

$277

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Mon 3/2

7:00 pm-8:54 pm

Nonstop1h 54m

Washington, D.C. Dulles Intl

Tue 3/10

9:55 am-11:40 am

Nonstop1h 45m

$278

MontrealWashington, D.C.

YUL - DCA

YULDCA

Montreal Pierre Elliott Trudeau Intl

Sun 2/15

8:25 am-10:21 am

Nonstop1h 56m

Washington, D.C. Reagan-National

Sat 2/28

6:00 am-7:45 am

Nonstop1h 45m

$278

MontrealWashington, D.C.

YUL - DCA

YULDCA

Montreal Pierre Elliott Trudeau Intl

Thu 4/9

8:00 pm-9:53 pm

Nonstop1h 53m

Washington, D.C. Reagan-National

Mon 4/13

12:55 pm-7:06 pm

1 stop6h 11m

$281

MontrealWashington, D.C.

YUL - DCA

YULDCA

Montreal Pierre Elliott Trudeau Intl

Fri 3/20

8:00 pm-9:56 pm

Nonstop1h 56m

Washington, D.C. Reagan-National

Sun 3/22

12:55 pm-7:14 pm

1 stop6h 19m

$287

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 typical price of a round-trip flight between Montreal and Washington, D.C.?

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

The month of October is, on average, the cheapest month to fly to Washington, D.C. from Montreal, with most prices found around $273. If you’re not able to fly to Washington, D.C. in October, then May is your next best option. Flight prices from Montreal to Washington, D.C. during May average around $285.

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 $342. 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 $596.

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 $329. 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 $479. 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. Dulles Intl 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 $310 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 $212 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?

You could potentially save up to 8% on your flight if you consider stops on a Montreal to Washington, D.C. flight.

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

As of January 2026, prices for Montreal to Washington, D.C. flights are approximately 21% cheaper 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

$213

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 $213. The best round-trip flight deal from Montreal to Washington, D.C. found on momondo in the last 72 hours is $363.
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 in Washington, D.C.. From Montreal there are direct flights to Washington, D.C. Reagan-National (DCA), Washington, D.C. Dulles Intl (IAD).
Search flight deals

  • 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 46m.

  • 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 $197Free CancellationRating
7.9
412 reviews
Search Porter Airlines flights
Air CanadaPriceFrom $220Free CancellationRating
7.1
10,647 reviews
Search Air Canada flights
United AirlinesPriceFrom $225Free CancellationRating
7.4
9,192 reviews
Search United Airlines flights
DeltaPriceFrom $275Free CancellationRating
7.9
8,087 reviews
Search Delta flights

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

    United Airlines operates around 38 flights from Montreal to Washington, D.C. every week. The average price of these flights found in the last 72 hours has been $430, but momondo users have found United Airlines deals from Montreal to Washington, D.C. from as low as $225 round-trip. United Airlines has been scored 7.4/10 in 9,192 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 $313. Air Canada operates 38 flights to Washington, D.C. from Montreal in an average week. Users have rated it 7.1/10 across 10,647 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
National Harbor
Gettysburg
Arlington
Waldorf
Woodbridge
Tysons
Laurel
Colonial Beach
Silver Spring
Towson
Fredericksburg
Rockville
Gaithersburg
Manassas
Springfield
Fairfax
Linthicum Heights
Bethesda
Glen Burnie

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.
Start using Trips
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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.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport