Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport from C$ 249

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — IAD
22 Jul — 29 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Pierre Elliott Trudeau Intl to Dulles Intl

Enter your travel dates to find the best prices.

Cheapest flights from Pierre Elliott Trudeau Intl to Dulles Intl
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 June 2026.

Thu 9/76:30 a.m.
YUL
-
IAD
1 stop3h 55m
Porter Airlines
Sun 12/73:55 p.m.
IAD
-
YUL
1 stop4h 15m
Porter Airlines
Deal found 21/6C$ 412
Thu 6/810:35 a.m.
YUL
-
IAD
1 stop4h 35m
Porter Airlines
Tue 11/83:50 p.m.
IAD
-
YUL
1 stop4h 20m
Porter Airlines
Deal found 21/6C$ 413
Fri 7/86:30 a.m.
YUL
-
IAD
1 stop4h 15m
Porter Airlines
Tue 11/811:25 a.m.
IAD
-
YUL
1 stop6h 45m
Porter Airlines
Deal found 18/6C$ 415
Fri 4/912:55 p.m.
YUL
-
IAD
1 stop4h 13m
Air Canada
Mon 7/93:45 p.m.
IAD
-
YUL
Nonstop1h 42m
Air Canada
Deal found 21/6C$ 416
Tue 21/710:35 a.m.
YUL
-
IAD
1 stop4h 36m
Porter Airlines
Sat 8/811:25 a.m.
IAD
-
YUL
1 stop6h 45m
Porter Airlines
Deal found 21/6C$ 418
Thu 9/76:30 a.m.
YUL
-
IAD
1 stop3h 55m
Porter Airlines
Tue 1/911:25 a.m.
IAD
-
YUL
1 stop6h 45m
Porter Airlines
Deal found 21/6C$ 423
Thu 20/81:05 p.m.
YUL
-
IAD
Nonstop1h 56m
Air Canada
Sun 23/83:45 p.m.
IAD
-
YUL
Nonstop1h 42m
Air Canada
Deal found 21/6C$ 425
Thu 2/76:30 a.m.
YUL
-
IAD
1 stop3h 55m
Porter Airlines
Thu 9/73:55 p.m.
IAD
-
YUL
1 stop4h 15m
Porter Airlines
Deal found 16/6C$ 426
Sat 1/810:35 a.m.
YUL
-
IAD
1 stop4h 35m
Porter Airlines
Sat 8/811:25 a.m.
IAD
-
YUL
1 stop6h 45m
Porter Airlines
Deal found 18/6C$ 427
Fri 3/76:30 a.m.
YUL
-
IAD
1 stop3h 55m
Porter Airlines
Mon 6/73:55 p.m.
IAD
-
YUL
1 stop6h 15m
Porter Airlines
Deal found 19/6C$ 430
Wed 8/75:05 p.m.
YUL
-
IAD
Nonstop1h 56m
Air Canada
Mon 31/85:15 p.m.
IAD
-
YUL
1 stop4h 32m
Air Canada
Deal found 21/6C$ 432
Wed 22/76:30 a.m.
YUL
-
IAD
1 stop3h 55m
Porter Airlines
Tue 28/73:55 p.m.
IAD
-
YUL
1 stop4h 15m
Porter Airlines
Deal found 20/6C$ 433

Find flight deals from Pierre Elliott Trudeau Intl to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 22 June 2026.

Round-trip from

C$ 412

One-way from

C$ 249

Popular in

August

Cheapest in

February

Average price

C$ 518

Good round-trip deal

C$ 562 or less

Good one-way deal

C$ 426 or less
Porter Airlines
  • Porter Airlines
  • 9/7-12/7
  • 2 total stops
  • 8h 10m total
  • Montreal to Washington, D.C.
Search Deals
Porter Airlines
  • Porter Airlines
  • 9/7
  • 1 total stop
  • 3h 55m total
  • Montreal to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 47 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from Montreal Pierre Elliott Trudeau Intl to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from Montreal Pierre Elliott Trudeau Intl to Washington, D.C. Dulles Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pierre Elliott Trudeau Intl to Dulles Intl 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, Cheapflights users made 629,999 searches. Data last updated 22 June 2026.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 30/7

6:47 p.m.-12:41 a.m.

1 stop5h 54m

Washington, D.C. Dulles Intl

Tue 4/8

12:30 p.m.-11:30 p.m.

2 stops11h 00m

C$ 466

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 21/8

9:30 a.m.-8:55 p.m.

2 stops11h 25m

Washington, D.C. Dulles Intl

Tue 25/8

6:00 a.m.-1:39 p.m.

2 stops7h 39m

C$ 493

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 13/8

11:23 a.m.-10:59 p.m.

1 stop11h 36m

Washington, D.C. Dulles Intl

Mon 17/8

5:40 p.m.-7:45 p.m.

Nonstop2h 05m

C$ 495

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 10/7

3:25 p.m.-11:19 p.m.

1 stop7h 54m

Washington, D.C. Dulles Intl

Sat 11/7

10:20 p.m.-10:40 a.m.

1 stop12h 20m

C$ 495

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 16/7

6:10 a.m.-11:52 a.m.

1 stop5h 42m

Washington, D.C. Dulles Intl

Mon 20/7

5:34 p.m.-7:45 p.m.

Nonstop2h 11m

C$ 498

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 24/7

7:00 a.m.-4:46 p.m.

1 stop9h 46m

Washington, D.C. Dulles Intl

Tue 28/7

6:00 a.m.-6:54 p.m.

2 stops12h 54m

C$ 519
Quickest round-trip

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 16/7

9:15 a.m.-11:12 a.m.

Nonstop1h 57m

Washington, D.C. Dulles Intl

Sun 19/7

5:34 p.m.-7:45 p.m.

Nonstop2h 11m

C$ 522

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Wed 19/8

7:00 a.m.-2:05 p.m.

1 stop7h 05m

Washington, D.C. Dulles Intl

Mon 24/8

6:00 a.m.-6:54 p.m.

2 stops12h 54m

C$ 525

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Tue 18/8

9:30 a.m.-8:05 p.m.

2 stops10h 35m

Washington, D.C. Dulles Intl

Sun 23/8

6:00 a.m.-11:39 a.m.

1 stop5h 39m

C$ 525

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Mon 14/12

7:00 a.m.-4:36 p.m.

1 stop9h 36m

Washington, D.C. Dulles Intl

Tue 5/1

11:05 a.m.-3:59 p.m.

1 stop4h 54m

C$ 546

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/6

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Best time to book a flight from Pierre Elliott Trudeau Intl to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Pierre Elliott Trudeau Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport?

Currently, February is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport (average of C$ 382). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport in August is currently the most expensive (average of C$ 575). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from YUL to IAD?

Find hourly flight availability from Pierre Elliott Trudeau Intl to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 22 June 2026.

It’s typically best to fly out from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport in the afternoon. Doing so could potentially save you 31% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Pierre Elliott Trudeau Intl to Dulles Intl. Price data was last updated on 20 June 2026.

Travelers seeking maximum savings on their Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport flight should consider departing on Monday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport?

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated 22 June 2026.
Read reviews from past customers who have flown Porter Airlines,United Airlines, andAir Canada from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
438 reviews
Check prices

Boarding

8.2

Food

7.6

Overall

8.0

Crew

8.6

Comfort

8.0

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
Porter Airlines
8.0
Very good
438 reviews
Porter Airlines
8.0
Very good
438 reviews
Check prices

Boarding

8.2

Food

7.6

Overall

8.0

Crew

8.6

Comfort

8.0

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
United Airlines
7.4
Good
9,874 reviews
Porter Airlines
8.0
Very good
438 reviews
Check prices

Boarding

8.2

Food

7.6

Overall

8.0

Crew

8.6

Comfort

8.0

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
Air Canada
7.1
Good
11,238 reviews
Porter Airlines
8.0
Very good
438 reviews
Check prices

Boarding

8.2

Food

7.6

Overall

8.0

Crew

8.6

Comfort

8.0

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.

Related info for your journey

Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport?

    There are many flights that can get you from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport in 5h 54m. Fly via Delta or United Airlines to get the fastest option. Montreal Pierre Elliott Trudeau Intl Airport and Washington, D.C. Dulles Intl Airport are separated by a distance of 785 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport round-trip?

    Flying on Porter Airlines is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at C$ 306. Additional round-trip tickets that might be worth considering are offered by Air Canada and United Airlines, with the lowest prices starting at C$ 377 and C$ 413, respectively. Porter Airlines is 36% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport one-way?

    One-way options have recently been found by users for as low as C$ 197 on Porter Airlines. Other airlines that offer cheap prices include Air Canada from C$ 227 and United Airlines from C$ 244 one-way.

  • What are the most reliable airlines from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport on time: Sun Country Air (100%), Avianca (93%), Copa Airlines (92%).

  • What are the cheapest flights from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport?

    Looking at all options, your cheapest flight can be booked for C$ 216. While the most popular route (Montreal Pierre Elliott Trudeau Intl - Washington, D.C. Dulles Intl) can be booked for C$ 381 on average, our data indicates C$ 692 when flying from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport.

  • Can I find deals for flights from Pierre Elliott Trudeau Intl to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Pierre Elliott Trudeau Intl to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pierre Elliott Trudeau Intl to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pierre Elliott Trudeau Intl to Dulles Intl.

  • Can I find deals for business class flights from Pierre Elliott Trudeau Intl to Dulles Intl?

    Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport (average of C$ 382). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport in August is currently the most expensive (average of C$ 575). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Silver Spring
Warrenton
Winchester
Hanover
Fairfax
Oxon Hill
Gaithersburg
Chantilly
Reston
Herndon
Ellicott City
Arlington
Fredericksburg
Alexandria
Rockville

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Pierre Elliott Trudeau Intl to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Pierre Elliott Trudeau Intl to Reagan-National flights
Pierre Elliott Trudeau Intl to Baltimore flights

Top 3 airlines flying from Pierre Elliott Trudeau Intl to Dulles Intl

Discover the top 3 airlines that operate flights from Pierre Elliott Trudeau Intl to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 22 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 306AverageC$ 386FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 377AverageC$ 589FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 413AverageC$ 561FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Pierre Elliott Trudeau Intl to Dulles Intl?

Deals for Pierre Elliott Trudeau Intl to Dulles Intl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Pierre Elliott Trudeau Intl to Dulles Intl?

Cheapflights simply makes it quick and affordable to book flights from Pierre Elliott Trudeau Intl to Dulles Intl by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Pierre Elliott Trudeau Intl to Dulles Intl with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Pierre Elliott Trudeau Intl to Dulles Intl, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Pierre Elliott Trudeau Intl to Dulles Intl become cheaper?

Yes, Cheapflights offers price alerts on Pierre Elliott Trudeau Intl to Dulles Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.