Cheap flights from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport from C$ 226

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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YUL
29 Jul — 5 Aug1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Montreal Pierre Elliott Trudeau Intl are usually found in March or January, booked 81 days in advance, depart on a Thursday or Friday and return on a Saturday

Cheap flight deals from Dulles Intl to Pierre Elliott Trudeau Intl

Enter your travel dates to find the best prices.

Cheapest flights from Dulles Intl to Pierre Elliott Trudeau Intl
Explore the most affordable flight options available from Dulles Intl to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 June 2026.

Mon 17/83:50 p.m.
IAD
-
YUL
1 stop4h 20m
Porter Airlines
Fri 21/86:30 a.m.
YUL
-
IAD
1 stop4h 15m
Porter Airlines
Deal found 25/6C$ 461
Sun 2/811:25 a.m.
IAD
-
YUL
1 stop6h 45m
Porter Airlines
Wed 5/86:30 a.m.
YUL
-
IAD
1 stop4h 15m
Porter Airlines
Deal found 26/6C$ 463
Tue 25/83:50 p.m.
IAD
-
YUL
1 stop4h 20m
Porter Airlines
Wed 26/86:30 a.m.
YUL
-
IAD
1 stop4h 15m
Porter Airlines
Deal found 25/6C$ 464
Mon 20/73:55 p.m.
IAD
-
YUL
1 stop4h 15m
Porter Airlines
Wed 22/76:30 a.m.
YUL
-
IAD
1 stop3h 55m
Porter Airlines
Deal found 26/6C$ 466
Sun 6/93:50 p.m.
IAD
-
YUL
1 stop4h 20m
Porter Airlines
Fri 11/910:35 a.m.
YUL
-
IAD
1 stop4h 35m
Porter Airlines
Deal found 25/6C$ 467
Sun 23/83:50 p.m.
IAD
-
YUL
1 stop4h 20m
Porter Airlines
Tue 1/96:30 a.m.
YUL
-
IAD
1 stop4h 15m
Porter Airlines
Deal found 25/6C$ 469
Sun 16/811:25 a.m.
IAD
-
YUL
1 stop6h 45m
Porter Airlines
Thu 20/86:30 a.m.
YUL
-
IAD
1 stop4h 15m
Porter Airlines
Deal found 28/6C$ 470
Mon 20/73:55 p.m.
IAD
-
YUL
1 stop6h 15m
Porter Airlines
Fri 24/710:35 a.m.
YUL
-
IAD
1 stop4h 36m
Porter Airlines
Deal found 28/6C$ 471
Sun 19/73:55 p.m.
IAD
-
YUL
1 stop4h 15m
Porter Airlines
Mon 20/76:30 a.m.
YUL
-
IAD
1 stop3h 55m
Porter Airlines
Deal found 26/6C$ 473
Tue 28/73:55 p.m.
IAD
-
YUL
1 stop4h 15m
Porter Airlines
Fri 31/710:35 a.m.
YUL
-
IAD
1 stop4h 36m
Porter Airlines
Deal found 25/6C$ 474
Sun 26/73:55 p.m.
IAD
-
YUL
1 stop4h 15m
Porter Airlines
Sat 1/810:35 a.m.
YUL
-
IAD
1 stop4h 35m
Porter Airlines
Deal found 27/6C$ 476
Sun 19/73:55 p.m.
IAD
-
YUL
1 stop4h 15m
Porter Airlines
Wed 22/76:30 a.m.
YUL
-
IAD
1 stop3h 55m
Porter Airlines
Deal found 29/6C$ 477

Find flight deals from Dulles Intl to Pierre Elliott Trudeau Intl

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Pierre Elliott Trudeau Intl (YUL). 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 29 June 2026.

Round-trip from

C$ 461

One-way from

C$ 226

Popular in

June

Cheapest in

March

Average price

C$ 646

Good round-trip deal

C$ 619 or less

Good one-way deal

C$ 331 or less
Porter Airlines
  • Porter Airlines
  • 17/8-21/8
  • 2 total stops
  • 8h 35m total
  • Washington, D.C. to Montreal
Air Canada
  • Air Canada
  • 8/9
  • Nonstop
  • 1h 38m total
  • Washington, D.C. to Montreal
Highest demand for flights based on searches. 13% potential increase in price (C$ 125 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease (C$ 14 potential savings vs. average RT price).
Average for round-trip flights in June 2026
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Montreal Pierre Elliott Trudeau Intl.
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Montreal Pierre Elliott Trudeau Intl.

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Pierre Elliott Trudeau 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 29 June 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Sat 1/8

10:05 p.m.-8:00 a.m.

1 stop9h 55m

Montreal Pierre Elliott Trudeau Intl

Tue 11/8

1:05 p.m.-3:01 p.m.

Nonstop1h 56m

C$ 683

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Sat 1/8

5:42 p.m.-10:06 p.m.

1 stop4h 24m

Montreal Pierre Elliott Trudeau Intl

Thu 6/8

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

Nonstop1h 57m

C$ 697

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Thu 30/7

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

Nonstop2h 11m

Montreal Pierre Elliott Trudeau Intl

Tue 4/8

2:20 p.m.-4:19 p.m.

Nonstop1h 59m

C$ 701

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Fri 2/10

8:00 a.m.-5:38 p.m.

1 stop9h 38m

Montreal Pierre Elliott Trudeau Intl

Mon 5/10

6:00 a.m.-4:17 p.m.

2 stops10h 17m

C$ 711

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Wed 30/9

11:10 a.m.-6:53 p.m.

2 stops7h 43m

Montreal Pierre Elliott Trudeau Intl

Mon 5/10

7:00 a.m.-4:17 p.m.

1 stop9h 17m

C$ 711

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Fri 21/8

8:28 a.m.-5:46 p.m.

1 stop9h 18m

Montreal Pierre Elliott Trudeau Intl

Tue 25/8

6:00 a.m.-2:05 p.m.

2 stops8h 05m

C$ 733

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Wed 19/8

6:10 a.m.-5:46 p.m.

2 stops11h 36m

Montreal Pierre Elliott Trudeau Intl

Wed 26/8

6:51 p.m.-12:34 a.m.

1 stop5h 43m

C$ 733
Quickest round-trip

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Thu 24/9

3:45 p.m.-5:23 p.m.

Nonstop1h 38m

Montreal Pierre Elliott Trudeau Intl

Sun 27/9

1:05 p.m.-3:00 p.m.

Nonstop1h 55m

C$ 738

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Thu 24/9

9:45 a.m.-11:23 a.m.

Nonstop1h 38m

Montreal Pierre Elliott Trudeau Intl

Mon 28/9

10:30 a.m.-4:38 p.m.

1 stop6h 08m

C$ 741

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Fri 30/10

5:30 p.m.-11:51 p.m.

1 stop6h 21m

Montreal Pierre Elliott Trudeau Intl

Mon 2/11

4:55 p.m.-12:20 a.m.

2 stops7h 25m

C$ 755

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/6

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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

Have a flexible travel schedule? Discover the best time to fly to Pierre Elliott Trudeau Intl from Dulles 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 Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport

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

To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport, you should look to book at least 79 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 Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 410). Flying from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport in June is currently the most expensive (average of C$ 646). 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 IAD to YUL?

Find hourly flight availability from Dulles Intl to Pierre Elliott Trudeau Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 June 2026.

When flying from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 22% versus a flight at noon.

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

Reviews of airlines servicing Pierre Elliott Trudeau Intl

Get insights into the airlines that provide service to Pierre Elliott Trudeau 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 Pierre Elliott Trudeau Intl. Reviews last updated 29 June 2026.
Check out reviews from past customers who have flown with United Airlines and Air Canada from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Pierre Elliott Trudeau 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 Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

    Airlines like United Airlines and Delta fly from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport in about 4h 24m. The time it takes to get you to your destination can typically vary by up to 5h 14m. Washington, D.C. Dulles Intl Airport and Montreal Pierre Elliott Trudeau 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 Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport round-trip?

    Air Canada, at C$ 434, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport. An alternate airline flying to your destination would be United Airlines. Air Canada is currently priced 20% below the average price you’ll pay for this route.

  • What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau 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 Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport on time: Avianca (93%), Republic Airways (93%), Copa Airlines (91%).

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

    On average you can expect to pay C$ 597 for a flight from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport. The cheapest flight overall is C$ 188 while the most popular route, (Washington, D.C. Dulles Intl - Montreal Pierre Elliott Trudeau Intl) is currently priced at C$ 451.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Pierre Elliott Trudeau 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 Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

    Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 410). Flying from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport in June is currently the most expensive (average of C$ 646). 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 Montreal Pierre Elliott Trudeau Intl Airport?

Book flights to Montreal Pierre Elliott Trudeau Intl Airport if you plan to visit one of these locations
Dorval
Trois-Rivières
Laval
Brossard
Sherbrooke
Longueuil
Cornwall
Montebello
Magog
Boucherville
Bromont
Saint-Jean-sur-Richelieu
Drummondville
North Hatley
Saint-Sauveur
Louiseville

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Alternative routes for Dulles Intl to Pierre Elliott Trudeau Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Dulles Intl to Pierre Elliott Trudeau Intl

Discover the top 2 airlines that operate flights from Dulles Intl to Pierre Elliott Trudeau 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 29 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 434AverageC$ 871FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 571AverageC$ 673FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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

Deals for Dulles Intl to Pierre Elliott Trudeau 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 Dulles Intl to Pierre Elliott Trudeau Intl?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Pierre Elliott Trudeau Intl from Dulles Intl.

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

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

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

Yes! Start tracking prices for Dulles Intl to Pierre Elliott Trudeau Intl flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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