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

A quick flight from Montreal to Washington, D.C. Dulles Intl Airport can take about 1h 58m. Air Canada provides one of the quickest options available for as low as C$ 445. There are 785 km between Montreal and Washington, D.C. Dulles Intl Airport. This flight may include one or multiple stops.

What are the cheapest airlines flying from Montreal 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$ 366 and C$ 436, respectively. Porter Airlines is 51% 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 to Washington, D.C. Dulles Intl Airport one-way?

The cheapest airline one-way is Porter Airlines, with whom users have recently found tickets for as low as C$ 187. However, be on the lookout for offers from Air Canada and United Airlines, as they are both options that can get you from Montreal to Washington, D.C. Dulles Intl Airport for a low price.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 66.0 - 102.0 mm per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 66.0 mm.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

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

Looking at all options, your cheapest flight can be booked for C$ 279. While the most popular route (Montreal Pierre Elliott Trudeau Intl - Washington, D.C. Dulles Intl) can be booked for C$ 403 on average, our data indicates C$ 733 when flying from Montreal to Washington, D.C. Dulles Intl Airport.

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

The top 3 most reliable airlines when flying from Montreal to Washington, D.C. Dulles Intl Airport are Sun Country Air (100%), Avianca (91%) and Copa Airlines (77%).

What are the most popular airlines that fly from Montreal to Washington, D.C. Dulles Intl Airport?

The most popular airlines flying from Montreal to Washington, D.C. Dulles Intl Airport are Air Canada, Porter Airlines and United Airlines. Something to consider prior to booking your flight.

Can I find deals for flights from Montreal to Dulles Intl that include hotel bookings?

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

How can I find direct flights from Montreal to Dulles Intl?

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

Can I find deals for business class flights from Montreal to Dulles Intl?

Yes. Cheapflights offers flight deals from Montreal 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.

C$ 242+ Cheap Flights from Montreal to Washington, D.C. Dulles Intl Airport

Cheap flight deals from Montreal to Dulles Intl

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Montreal to Dulles Intl
Explore the most affordable flight options available from Montreal to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 September 2026.

Thu 1/109:00 a.m. -

1 stop6h 10m

Thu 8/103:50 p.m. -

1 stop5h 22m

Deal found 3/9C$ 422

Thu 17/99:00 a.m. -

1 stop6h 10m

Thu 24/93:50 p.m. -

1 stop5h 22m

Deal found 31/8C$ 424

Fri 25/99:00 a.m. -

1 stop6h 10m

Mon 5/103:50 p.m. -

1 stop5h 22m

Deal found 1/9C$ 425

Fri 9/106:30 a.m. -

1 stop4h 15m

Mon 12/1011:25 a.m. -

1 stop6h 47m

Deal found 2/9C$ 427

Thu 8/106:30 a.m. -

1 stop4h 15m

Mon 12/1011:25 a.m. -

1 stop6h 47m

Deal found 31/8C$ 428

Fri 6/119:45 a.m. -

1 stop7h 58m

Mon 9/116:25 p.m. -

1 stop3h 45m

Deal found 30/8C$ 429

Tue 22/95:05 p.m. -

Nonstop1h 55m

Fri 2/109:55 a.m. -

1 stop4h 27m

Deal found 1/9C$ 431

Fri 25/96:30 a.m. -

1 stop4h 15m

Mon 28/911:25 a.m. -

1 stop6h 47m

Deal found 1/9C$ 432

Thu 17/91:05 p.m. -

Nonstop1h 55m

Wed 23/99:45 a.m. -

Nonstop1h 38m

Deal found 31/8C$ 435

Fri 6/119:45 a.m. -

1 stop7h 58m

Tue 10/1111:20 a.m. -

1 stop4h 40m

Deal found 3/9C$ 436

Sat 7/1111:10 a.m. -

1 stop4h 35m

Thu 12/115:15 p.m. -

1 stop4h 30m

Deal found 3/9C$ 438

Wed 16/99:15 a.m. -

Nonstop1h 58m

Wed 16/93:45 p.m. -

Nonstop1h 38m

Deal found 2/9C$ 439

Find flight deals from Montreal to Dulles Intl

Round-trip from	C$ 424
One-way from	C$ 242
Popular in	March
Cheapest in	February
Average price	C$ 576
Good round-trip deal	C$ 695 or less
Good one-way deal	C$ 411 or less

Porter Airlines
17/9-24/9
2 total stops
11h 32m total
Montreal to Washington, D.C.

Search Deals

Porter Airlines
24/9-31/12
1 total stop
6h 10m total
Montreal to Washington, D.C.

Search Deals

Highest demand for flights based on searches. 8% potential increase in price (C$ 81 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 10% potential price decrease (C$ 80 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Price to beat on a round-trip flight from Montreal (YMQ) to Washington, D.C. Dulles Intl.

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Price to beat on a one-way flight from Montreal (YMQ) to Washington, D.C. Dulles Intl.

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Montreal 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 Montreal Pierre Elliott Trudeau Intl - IAD Washington, D.C. Dulles Intl

YULIAD

Montreal Pierre Elliott Trudeau Intl

Mon 14/12

7:00 a.m.-4:07 p.m.

1 stop9h 07m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 266

MontrealWashington, D.C.

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

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 18/9

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

1 stop5h 54m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 266

MontrealWashington, D.C.

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

YULIAD

Montreal Pierre Elliott Trudeau Intl

Wed 14/10

6:50 p.m.-12:42 a.m.

1 stop5h 52m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 266

MontrealWashington, D.C.

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

YULIAD

Montreal Pierre Elliott Trudeau Intl

Tue 15/12

7:00 a.m.-4:03 p.m.

1 stop9h 03m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 266

Quickest round-trip

MontrealWashington, D.C.

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

YULIAD

Montreal Pierre Elliott Trudeau Intl

Wed 14/10

9:15 a.m.-11:13 a.m.

Nonstop1h 58m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 269

MontrealWashington, D.C.

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

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 24/9

9:15 a.m.-11:13 a.m.

Nonstop1h 58m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 269

MontrealWashington, D.C.

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

YULIAD

Montreal Pierre Elliott Trudeau Intl

Wed 16/12

6:39 p.m.-12:42 a.m.

1 stop6h 03m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 269

MontrealWashington, D.C.

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

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 11/12

4:49 p.m.-11:23 p.m.

1 stop6h 34m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 269

MontrealWashington, D.C.

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

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 17/12

6:00 a.m.-2:12 p.m.

1 stop8h 12m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 293

MontrealWashington, D.C.

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

YULIAD

Montreal Pierre Elliott Trudeau Intl

Sat 7/11

6:25 p.m.-8:23 p.m.

Nonstop1h 58m

Washington, D.C. Dulles Intl

Wed 11/11

9:55 a.m.-11:38 a.m.

Nonstop1h 43m

C$ 445

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

Showing 1-10 of 21 resultsSorted by cheapest first

Best time to book a flight from Montreal to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Montreal with our price prediction graph.

YMQ-IAD

YUL-IAD

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 to Washington, D.C. Dulles Intl Airport

YMQ-IAD

YUL-IAD

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

Currently, February is the cheapest month in which you can book a flight from Montreal to Washington, D.C. Dulles Intl Airport (average of C$ 373). Flying from Montreal to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of C$ 617). 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 YMQ to IAD?

Unlike in the evening, when flights are generally more expensive, you can save up to 31% on flights from Montreal to Washington, D.C. Dulles Intl Airport by exploring options for tickets in the afternoon.

Weekly flight availability from Montreal to Washington, D.C. Dulles Intl Airport

The most flights from YMQ to IAD are scheduled on a Monday (11 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (7 on average).

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

Airfare is below average for this route at the moment.

Montreal to Washington, D.C. Dulles Intl Airport flights typically cost between C$ 457 and C$ 641 in September.
The cheapest round-trip price found within the last 5 days was C$ 424 on Porter Airlines (17 Sep-24 Sep).

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

Travelers seeking maximum savings on their Montreal 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.

Reviews of airlines servicing Dulles Intl

Check out reviews from past customers who have flown with Porter Airlines,United Airlines, andAir Canada from Montreal to Washington, D.C. Dulles 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.

Porter Airlines

8.0

Very good

458 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

Porter Airlines

8.0

Very good

458 reviews

Porter Airlines

8.0

Very good

458 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

United Airlines

7.4

Good

10,160 reviews

Porter Airlines

8.0

Very good

458 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

Air Canada

7.1

Good

11,573 reviews

Porter Airlines

8.0

Very good

458 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

Related info for your journey

How long is the flight from Montreal to Washington, D.C. Dulles Intl Airport?
A quick flight from Montreal to Washington, D.C. Dulles Intl Airport can take about 1h 58m. Air Canada provides one of the quickest options available for as low as C$ 445. There are 785 km between Montreal and Washington, D.C. Dulles Intl Airport. This flight may include one or multiple stops.
What are the cheapest airlines flying from Montreal 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$ 366 and C$ 436, respectively. Porter Airlines is 51% 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 to Washington, D.C. Dulles Intl Airport one-way?
The cheapest airline one-way is Porter Airlines, with whom users have recently found tickets for as low as C$ 187. However, be on the lookout for offers from Air Canada and United Airlines, as they are both options that can get you from Montreal to Washington, D.C. Dulles Intl Airport for a low price.
What are the most reliable airlines from Montreal to Washington, D.C. Dulles Intl Airport?
The top 3 most reliable airlines when flying from Montreal to Washington, D.C. Dulles Intl Airport are Sun Country Air (100%), Avianca (91%) and Copa Airlines (77%).
What are the cheapest flights from Montreal to Washington, D.C. Dulles Intl Airport?
Looking at all options, your cheapest flight can be booked for C$ 279. While the most popular route (Montreal Pierre Elliott Trudeau Intl - Washington, D.C. Dulles Intl) can be booked for C$ 403 on average, our data indicates C$ 733 when flying from Montreal to Washington, D.C. Dulles Intl Airport.
Can I find deals for flights from Montreal to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Montreal to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Montreal to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montreal to Dulles Intl.
Can I find deals for business class flights from Montreal to Dulles Intl?
Yes. Cheapflights offers flight deals from Montreal 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 to Washington, D.C. Dulles Intl Airport?
Currently, February is the cheapest month in which you can book a flight from Montreal to Washington, D.C. Dulles Intl Airport (average of C$ 373). Flying from Montreal to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of C$ 617). 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.

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Oxon Hill

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Alternative routes for Montreal to Dulles Intl

Pierre Elliott Trudeau Intl to Reagan-National flights

Pierre Elliott Trudeau Intl to Dulles Intl flights

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Québec City to Reagan-National flights

Québec City to Dulles Intl flights

Top 3 airlines flying from Montreal to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Porter Airlines	CheapestC$ 299	AverageC$ 424	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights
Air Canada	CheapestC$ 366	AverageC$ 507	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	CheapestC$ 436	AverageC$ 573	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

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How does Cheapflights help users find flights from Montreal to Dulles Intl?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Dulles Intl from Montreal today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Montreal to Dulles Intl?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Montreal to Dulles Intl.

Can Cheapflights find flights from Montreal to Dulles Intl with no change fees?

Need flexible booking options for your flight to Dulles Intl from Montreal? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Montreal to Dulles Intl become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Dulles Intl from Montreal today and book when prices fit your budget.

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Cheap flights from Montreal to Washington, D.C. Dulles Intl Airport from C$ 242

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Montreal to Dulles Intl

Cheapest flights from Montreal to Dulles IntlExplore the most affordable flight options available from Montreal to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 September 2026.

Explore the most affordable flight options available from Montreal to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 September 2026.

Best flights from Montreal to Dulles IntlDiscover carefully curated flight deals from Montreal to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 4 September 2026.

Discover carefully curated flight deals from Montreal to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 4 September 2026.

Direct flights from Montreal to Dulles IntlExplore direct flight options from Montreal to Dulles Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 4 September 2026.

Explore direct flight options from Montreal to Dulles Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 4 September 2026.

Last-minute flights from Montreal to Dulles IntlDiscover last-minute flight deals from Montreal to Dulles Intl. Data last updated 4 September 2026 and is based on user searches.

Discover last-minute flight deals from Montreal to Dulles Intl. Data last updated 4 September 2026 and is based on user searches.

One-way flights from Montreal to Dulles IntlSearch for one-way flight options from Montreal to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated 4 September 2026.

Search for one-way flight options from Montreal to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated 4 September 2026.

Find flight deals from Montreal to Dulles Intl

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Cheapest in

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Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from Montreal to Washington, D.C. Dulles Intl Airport that are best for you.

Best time to book a flight from Montreal to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Montreal with our price prediction graph.

Cheapflights Insights

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

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

Find hourly flight availability from Montreal 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 4 September 2026.

Unlike in the evening, when flights are generally more expensive, you can save up to 31% on flights from Montreal to Washington, D.C. Dulles Intl Airport by exploring options for tickets in the afternoon.

Weekly flight availability from Montreal to Washington, D.C. Dulles Intl Airport

The most flights from YMQ to IAD are scheduled on a Monday (11 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (7 on average).

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

Airfare is below average for this route at the moment.

Montreal to Washington, D.C. Dulles Intl Airport flights typically cost between C$ 457 and C$ 641 in September.The cheapest round-trip price found within the last 5 days was C$ 424 on Porter Airlines (17 Sep-24 Sep).

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

Use this chart to determine the cheapest time to fly round-trip from Montreal to Dulles Intl. Price data was last updated on 29 August 2026.

Travelers seeking maximum savings on their Montreal 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.

Reviews of airlines servicing Dulles Intl

Related info for your journey

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

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

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

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

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

Can I find deals for flights from Montreal to Dulles Intl that include hotel bookings?

How can I find direct flights from Montreal to Dulles Intl?

Can I find deals for business class flights from Montreal to Dulles Intl?

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Montreal to Dulles Intl

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

Complete your trip

Complete your trip to Dulles Intl by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to District of Columbia

Book a non-stop flight to one of these other cities located in District of Columbia.

Other flights to Dulles Intl

Explore flights to Dulles Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 4 September 2026.

Search flights from Montreal to Dulles Intl by cabin class

Find flights from Montreal to Dulles Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Montreal and Dulles Intl flights

Browse other Montreal and Dulles Intl flight options. Last updated on 4 September 2026.

Other flights from Montreal

Browse through other flights departing from Montreal. Flights are based on user searches made on Cheapflights and were last updated on 4 September 2026.

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Top 3 airlines flying from Montreal to Dulles Intl

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How does Cheapflights help users find flights from Montreal to Dulles Intl?

Why should you use Cheapflights to find cheap flight tickets from Montreal to Dulles Intl?

Can Cheapflights find flights from Montreal to Dulles Intl with no change fees?

Can Cheapflights notify me if prices for flights from Montreal to Dulles Intl become cheaper?

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Cheapest flights from Montreal to Dulles Intl
Explore the most affordable flight options available from Montreal to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 September 2026.

Best flights from Montreal to Dulles Intl
Discover carefully curated flight deals from Montreal to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 4 September 2026.

Direct flights from Montreal to Dulles Intl
Explore direct flight options from Montreal to Dulles Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 4 September 2026.

Last-minute flights from Montreal to Dulles Intl
Discover last-minute flight deals from Montreal to Dulles Intl. Data last updated 4 September 2026 and is based on user searches.

One-way flights from Montreal to Dulles Intl
Search for one-way flight options from Montreal to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated 4 September 2026.

Montreal to Washington, D.C. Dulles Intl Airport flights typically cost between C$ 457 and C$ 641 in September.
The cheapest round-trip price found within the last 5 days was C$ 424 on Porter Airlines (17 Sep-24 Sep).