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Cheap flights from Montreal to Washington, D.C. Dulles Intl Airport from C$ 198

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 28/6. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — IAD
4 May — 11 May1
1 adult

Cheap flight deals from Montreal to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Montreal (YMQ) 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 29 April 2025.

Round-trip from

C$ 328

One-way from

C$ 198

Popular in

October

Cheapest in

February

Average price

C$ 385

Good round-trip deal

C$ 516 or less

Good one-way deal

C$ 232 or less
Porter Airlines
  • Porter Airlines
  • 24/5-28/5
  • 2 total stops
  • 10h 16m total
  • Montreal to Washington, D.C.
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Porter Airlines
  • Porter Airlines
  • 28/6
  • 1 total stop
  • 6h 11m total
  • Montreal to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (C$ 109 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 19 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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.
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Find flight deals from Montreal to Dulles Intl

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 29 April 2025.

Sat 24/510:45 a.m.YUL - IAD
1 stop4h 21mPorter Airlines
Wed 28/54:20 p.m.IAD - YUL
1 stop5h 55mPorter Airlines
Deal found 27/4C$ 328
Fri 13/69:15 a.m.YUL - IAD
Nonstop1h 59mUnited Airlines
Fri 13/610:15 p.m.IAD - YUL
1 stop10h 20mUnited Airlines
Deal found 28/4C$ 345
Sat 14/67:10 p.m.YUL - IAD
Nonstop1h 58mAir Canada
Sat 5/75:31 p.m.IAD - YUL
Nonstop2h 14mAir Canada
Deal found 28/4C$ 359
Wed 28/52:20 p.m.YUL - IAD
Nonstop1h 59mMultiple Airlines
Tue 3/610:20 a.m.IAD - YUL
1 stop6h 01mMultiple Airlines
Deal found 28/4C$ 373
Sat 14/67:00 a.m.YUL - IAD
1 stop5h 53mDelta
Sat 5/77:10 a.m.IAD - YUL
2 stops9h 15mDelta
Deal found 28/4C$ 428
Sat 21/66:45 a.m.YUL - IAD
2 stops13h 01mWestJet
Mon 23/66:00 a.m.IAD - YUL
1 stop17h 13mWestJet
Deal found 28/4C$ 511
Wed 28/512:30 p.m.YUL - IAD
2 stops11h 32mAmerican Airlines
Thu 29/55:02 a.m.IAD - YUL
2 stops11h 53mAmerican Airlines
Deal found 28/4C$ 743

Cheapflights Fare Finder

Customize your flight search to find flights from Montreal 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 29 April 2025.
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

Montreal

Fly to

Dulles Intl

Route

Depart

Return

Price

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Sat 24/5

10:45 a.m.-3:06 p.m.

1 stop4h 21m

Washington, D.C. Dulles Intl

Wed 28/5

4:20 p.m.-10:15 p.m.

1 stop5h 55m

C$ 328

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 13/6

9:15 a.m.-11:14 a.m.

Nonstop1h 59m

Washington, D.C. Dulles Intl

Fri 13/6

10:15 p.m.-8:35 a.m.

1 stop10h 20m

C$ 345

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Sat 14/6

7:10 p.m.-9:08 p.m.

Nonstop1h 58m

Washington, D.C. Dulles Intl

Sat 5/7

5:31 p.m.-7:45 p.m.

Nonstop2h 14m

C$ 359

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Wed 28/5

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

Nonstop1h 59m

Washington, D.C. Dulles Intl

Tue 3/6

10:20 a.m.-4:21 p.m.

1 stop6h 01m

C$ 373

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Sat 14/6

7:00 a.m.-12:53 p.m.

1 stop5h 53m

Washington, D.C. Dulles Intl

Sat 5/7

7:10 a.m.-4:25 p.m.

2 stops9h 15m

C$ 428

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Sat 21/6

6:45 a.m.-7:46 p.m.

2 stops13h 01m

Washington, D.C. Dulles Intl

Mon 23/6

6:00 a.m.-11:13 p.m.

1 stop17h 13m

C$ 511

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Wed 28/5

12:30 p.m.-12:02 a.m.

2 stops11h 32m

Washington, D.C. Dulles Intl

Thu 29/5

5:02 a.m.-4:55 p.m.

2 stops11h 53m

C$ 743

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Sat 28/6

8:55 a.m.-3:06 p.m.

1 stop6h 11m

C$ 198

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Fri 30/5

9:15 a.m.-11:14 a.m.

Nonstop1h 59m

C$ 216

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Sun 25/5

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

1 stop5h 39m

C$ 231

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/4

Showing 1-10 of 13 results
1
2

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.
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

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$ 256). Flying from Montreal to Washington, D.C. Dulles Intl Airport in October is currently the most expensive (average of C$ 352). 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?

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 29 April 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 22% on flights from Montreal to Washington, D.C. Dulles Intl Airport by exploring options for tickets in the afternoon.

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 30 March 2025.

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

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

Explore weekly flight availability from Montreal to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 29 April 2025.

The most flights from YMQ to IAD are scheduled on a Monday (12 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 on average).

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

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.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

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).

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 29 April 2025.
See what other customers who have flown with Porter Airlines, Delta and United Airlines from Montreal to Washington, D.C. have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
285 reviews
Check prices

Comfort

8.1

Entertainment

7.0

Crew

8.8

Overall

8.0

Boarding

8.2

Food

7.6

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
Porter Airlines
8.0
Very good
285 reviews
Porter Airlines
8.0
Very good
285 reviews
Check prices

Comfort

8.1

Entertainment

7.0

Crew

8.8

Overall

8.0

Boarding

8.2

Food

7.6

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
Delta
8.0
Very good
7,929 reviews
Porter Airlines
8.0
Very good
285 reviews
Check prices

Comfort

8.1

Entertainment

7.0

Crew

8.8

Overall

8.0

Boarding

8.2

Food

7.6

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
United Airlines
7.4
Good
8,696 reviews
Porter Airlines
8.0
Very good
285 reviews
Check prices

Comfort

8.1

Entertainment

7.0

Crew

8.8

Overall

8.0

Boarding

8.2

Food

7.6

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
American Airlines
7.2
Good
10,000 reviews
Porter Airlines
8.0
Very good
285 reviews
Check prices

Comfort

8.1

Entertainment

7.0

Crew

8.8

Overall

8.0

Boarding

8.2

Food

7.6

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
WestJet
7.2
Good
2,823 reviews
Porter Airlines
8.0
Very good
285 reviews
Check prices

Comfort

8.1

Entertainment

7.0

Crew

8.8

Overall

8.0

Boarding

8.2

Food

7.6

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you

Related info for your journey

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

  • 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$ 328. Additional round-trip tickets that might be worth considering are offered by United Airlines and Air Canada, with the lowest prices starting at C$ 345 and C$ 359, respectively. Porter Airlines is 30% 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$ 198. However, be on the lookout for offers from United Airlines and Air Canada, 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 (93%) and Republic Airways (89%).

  • 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$ 174. While the most popular route (Montreal Pierre Elliott Trudeau Intl - Washington, D.C. Dulles Intl) can be booked for C$ 302 on average our data indicates C$ 1,536 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$ 256). Flying from Montreal to Washington, D.C. Dulles Intl Airport in October is currently the most expensive (average of C$ 352). 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

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Top 3 airlines flying from Montreal to Dulles Intl

Discover the top 3 airlines that operate flights from Montreal 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 29 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 305AverageC$ 480FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 332AverageC$ 413FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 363AverageC$ 479FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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

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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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