Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport from C$ 233

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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — IAD
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to Washington, D.C. Dulles Intl are usually found in March or May, booked 87 days in advance, depart on a Saturday or Friday and return on a Thursday

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 12 December 2025.

Wed 31/126:45 a.m.YUL - IAD
1 stop3h 39mPorter Airlines
Fri 2/111:35 a.m.IAD - YUL
1 stop4h 55mPorter Airlines
Deal found 9/12C$ 356
Fri 26/121:40 p.m.YUL - IAD
1 stop3h 34mPorter Airlines
Sat 27/126:30 p.m.IAD - YUL
1 stop4h 15mPorter Airlines
Deal found 11/12C$ 393
Tue 30/126:45 a.m.YUL - IAD
1 stop3h 39mPorter Airlines
Fri 2/111:35 a.m.IAD - YUL
1 stop6h 10mPorter Airlines
Deal found 10/12C$ 400
Thu 18/126:45 a.m.YUL - IAD
1 stop3h 39mPorter Airlines
Thu 8/111:35 a.m.IAD - YUL
1 stop6h 10mPorter Airlines
Deal found 10/12C$ 422
Wed 24/126:45 a.m.YUL - IAD
1 stop3h 39mPorter Airlines
Sat 27/126:30 p.m.IAD - YUL
1 stop4h 15mPorter Airlines
Deal found 11/12C$ 425
Wed 24/126:45 a.m.YUL - IAD
1 stop3h 39mPorter Airlines
Wed 31/1211:40 a.m.IAD - YUL
1 stop3h 40mPorter Airlines
Deal found 11/12C$ 428
Tue 23/1211:25 a.m.YUL - IAD
1 stop5h 49mPorter Airlines
Fri 26/1211:40 a.m.IAD - YUL
1 stop6h 05mPorter Airlines
Deal found 11/12C$ 429
Fri 26/121:40 p.m.YUL - IAD
1 stop3h 34mPorter Airlines
Tue 30/1211:40 a.m.IAD - YUL
1 stop3h 40mPorter Airlines
Deal found 9/12C$ 439
Thu 25/1210:10 a.m.YUL - IAD
1 stop10h 16mAir Canada
Thu 1/19:45 a.m.IAD - YUL
Nonstop1h 53mAir Canada
Deal found 10/12C$ 441

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 12 December 2025.

Round-trip from

C$ 330

One-way from

C$ 233

Popular in

July

Cheapest in

March

Average price

C$ 527

Good round-trip deal

C$ 565 or less

Good one-way deal

C$ 307 or less
Porter Airlines
  • Porter Airlines
  • 16/4-16/4
  • 2 total stops
  • 7h 54m total
  • Montreal to Washington, D.C.
Porter Airlines
  • Porter Airlines
  • 5/1
  • 1 total stop
  • 3h 34m total
  • Montreal to Washington, D.C.
Highest demand for flights based on searches. 5% potential increase in price (C$ 34 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease (C$ 14 potential savings vs. average RT price).
Average for round-trip flights in December 2025
Price to beat on a round-trip flight from Montreal Pierre Elliott Trudeau Intl to Washington, D.C. Dulles Intl.
Price to beat on a one-way flight from Montreal Pierre Elliott Trudeau Intl to Washington, D.C. Dulles Intl.

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 12 December 2025.
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

Pierre Elliott Trudeau Intl

Fly to

Dulles Intl

Route

Depart

Return

Price

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 15/1

2:45 p.m.-8:37 p.m.

1 stop5h 52m

Washington, D.C. Dulles Intl

Sun 18/1

6:00 a.m.-12:04 p.m.

1 stop6h 04m

C$ 393

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 15/1

9:34 a.m.-8:37 p.m.

2 stops11h 03m

Washington, D.C. Dulles Intl

Mon 19/1

6:00 a.m.-11:45 a.m.

1 stop5h 45m

C$ 393

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Wed 24/12

6:45 a.m.-10:24 a.m.

1 stop3h 39m

Washington, D.C. Dulles Intl

Sat 27/12

6:30 p.m.-10:45 p.m.

1 stop4h 15m

C$ 425

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 6/3

9:29 a.m.-8:45 p.m.

2 stops11h 16m

Washington, D.C. Dulles Intl

Tue 10/3

2:07 p.m.-11:40 p.m.

1 stop9h 33m

C$ 430

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Tue 17/3

9:20 a.m.-6:30 p.m.

2 stops9h 10m

Washington, D.C. Dulles Intl

Fri 20/3

3:35 p.m.-11:59 p.m.

1 stop8h 24m

C$ 430

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 24/4

6:15 p.m.-12:09 a.m.

1 stop5h 54m

Washington, D.C. Dulles Intl

Tue 28/4

9:30 a.m.-6:53 p.m.

2 stops9h 23m

C$ 430

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Sat 10/1

6:00 a.m.-11:06 p.m.

1 stop17h 06m

Washington, D.C. Dulles Intl

Sat 17/1

5:27 p.m.-12:04 p.m.

1 stop18h 37m

C$ 474

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 13/2

2:13 p.m.-4:21 p.m.

Nonstop2h 08m

C$ 234

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Wed 21/1

7:00 a.m.-2:45 p.m.

1 stop7h 45m

C$ 237

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Sat 17/1

3:10 p.m.-8:26 p.m.

1 stop5h 16m

C$ 239

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/12

Showing 1-10 of 17 results
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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

How far ahead should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Pierre Elliott Trudeau Intl to Dulles Intl. Price data was last updated on 5 December 2025.

To ensure you get the cheapest price possible for a flight from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport, you should look to book at least 87 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, March 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$ 218). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport in November is currently the most expensive (average of C$ 353). 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 12 December 2025.

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 36% 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 6 December 2025.

Travelers seeking maximum savings on their Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport flight should consider departing on Friday 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 12 December 2025.
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.

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.0

Food

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.0

Food

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.0

Food

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.0

Food

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

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 52m. Fly via Delta 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.

  • 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$ 299. Additional round-trip tickets that might be worth considering are offered by Air Canada and United Airlines, with the lowest prices starting at C$ 332 and C$ 362, respectively. Porter Airlines is 32% 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$ 187 on Porter Airlines. Other airlines that offer cheap prices include Air Canada from C$ 207 and United Airlines from C$ 231 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: Copa Airlines (90%), Avianca (89%), Republic Airways (88%).

  • 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$ 232. While the most popular route (Montreal Pierre Elliott Trudeau Intl - Washington, D.C. Dulles Intl) can be booked for C$ 299 on average, our data indicates C$ 1,527 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, March 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$ 218). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Washington, D.C. Dulles Intl Airport in November is currently the most expensive (average of C$ 353). 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
Reston
Ellicott City
Oxon Hill
Gaithersburg
Arlington
Herndon
Manassas
Fredericksburg
Alexandria
Rockville

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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.

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 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 299AverageC$ 371FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 339AverageC$ 479FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 377AverageC$ 513FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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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?

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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.

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