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Cheap flights from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport from £139

IAD — YUL
15 Oct — 22 Oct1
1 adult
1 adult, Economy, 0 bags

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

Sat 26/911:25 -
1 stop6h 47m
Sun 27/910:35 -
1 stop4h 35m
Deal found 10/9£258
Sat 26/911:25 -
1 stop6h 47m
Tue 29/906:30 -
1 stop4h 15m
Deal found 10/9£259
Sat 26/915:45 -
Nonstop1h 38m
Sun 27/910:35 -
1 stop4h 35m
Deal found 10/9£267
Sat 26/911:25 -
1 stop6h 47m
Tue 29/909:30 -
2 stops7h 08m
Deal found 10/9£269
Sat 26/915:45 -
Nonstop1h 38m
Mon 28/906:30 -
1 stop4h 15m
Deal found 10/9£272
Fri 30/1015:03 -
1 stop8h 51m
Mon 2/1114:46 -
1 stop9h 56m
Deal found 11/9£273
Fri 25/917:20 -
1 stop14h 45m
Tue 29/913:05 -
Nonstop1h 55m
Deal found 10/9£278
Fri 25/917:20 -
1 stop14h 45m
Sun 27/910:35 -
1 stop4h 35m
Deal found 10/9£288
Thu 22/1008:13 -
1 stop9h 25m
Mon 26/1018:50 -
1 stop5h 52m
Deal found 12/9£289
Fri 25/917:20 -
1 stop14h 45m
Sat 26/910:40 -
2 stops5h 58m
Deal found 10/9£291
Fri 25/917:20 -
1 stop14h 45m
Tue 29/906:30 -
1 stop4h 15m
Deal found 10/9£292

Find flight deals from Dulles Intl to Pierre Elliott Trudeau Intl

Round-trip from

£258

One-way from

£112

Popular in

August

Cheapest in

March

Average price

£387
Porter Airlines
  • Porter Airlines
  • 26/9-27/9
  • 2 total stops
  • 11h 22m total
  • Washington, D.C. to Montreal
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Air Canada
  • Air Canada
  • 5/12-31/12
  • Nonstop
  • 1h 43m total
  • Washington, D.C. to Montreal
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£49 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
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.

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Route

Depart

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Price

Cheapest return flight

Washington, D.C.Montreal

IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl

IADYUL

Washington, D.C. Dulles Intl

Fri 25/9

15:15-23:50

1 stop8h 35m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£139

Washington, D.C.Montreal

IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl

IADYUL

Washington, D.C. Dulles Intl

Fri 16/10

17:40-19:45

Nonstop2h 05m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£164

Washington, D.C.Montreal

IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl

IADYUL

Washington, D.C. Dulles Intl

Sun 18/10

17:40-19:45

Nonstop2h 05m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£167
Fastest return journey

Washington, D.C.Montreal

IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl

IADYUL

Washington, D.C. Dulles Intl

Thu 15/10

12:43-14:40

Nonstop1h 57m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£184

Washington, D.C.Montreal

IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl

IADYUL

Washington, D.C. Dulles Intl

Sat 3/10

17:40-19:45

Nonstop2h 05m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£189

Washington, D.C.Montreal

IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl

IADYUL

Washington, D.C. Dulles Intl

Mon 28/12

17:45-19:48

Nonstop2h 03m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£189

Washington, D.C.Montreal

IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl

IADYUL

Washington, D.C. Dulles Intl

Thu 24/9

08:08-17:36

1 stop9h 28m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£194

Washington, D.C.Montreal

IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl

IADYUL

Washington, D.C. Dulles Intl

Fri 25/9

17:40-19:45

Nonstop2h 05m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£232

Washington, D.C.Montreal

IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl

IADYUL

Washington, D.C. Dulles Intl

Thu 1/10

17:40-19:45

Nonstop2h 05m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£234

Washington, D.C.Montreal

IAD Washington, D.C. Dulles Intl - YUL Montreal Pierre Elliott Trudeau Intl

IADYUL

Washington, D.C. Dulles Intl

Sun 22/11

06:00-11:37

1 stop5h 37m

Montreal Pierre Elliott Trudeau Intl

Wed 25/11

18:35-00:41

1 stop6h 06m

£273

Flights are sorted by cheapest return flights first.

Deals found on 10/9

Showing 1-10 of 21 resultsSorted by cheapest first
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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 return price

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?

Booking 54 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 £214). Flying from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport in August is currently the most expensive (average of £402). 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?

When flying from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

Airfare is below average for this route at the moment.

Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport flights typically cost between £299 and £423 in September.
The cheapest return price found within the last 5 days was £258 on Porter Airlines (26 Sept–27 Sept).

Related info for your journey

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

    Delta can get you from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport in just under 5h 59m. Your travel time can differ by up to . Airlines will cover a distance of 488 mi.

  • 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: Sun Country Air (100%), Republic Airways (83%), Avianca (78%).

  • 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 holiday 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 £214). Flying from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport in August is currently the most expensive (average of £402). 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
Longueuil
Cornwall
Laval

Browse thousands of different options on Cheapflights for your next trip

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