Cheap Flights from Montreal (YMQA) to Washington Dulles (IAD)

Compare Montreal to Washington Dulles flight deals

Find the cheapest month or even day of the year to fly to Washington Dulles

Book the best Washington Dulles fare with no extra fees

Flight deals from Montreal to Washington Dulles Airport

Looking for a cheap last-minute deal or the best return flight from Montreal to Washington Dulles Airport? If you want to travel next month, return fares start from £195. Find the lowest prices on one-way and return tickets right here.

Washington D.C..£100 per passenger.Departing Thu, 7 May.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Montreal Pierre Elliott Trudeau on Thu, 7 May, arriving in Washington Dulles.Price includes taxes and charges.From £100, select.

Washington D.C..£106 per passenger.Departing Wed, 29 Apr.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Montreal Pierre Elliott Trudeau on Wed, 29 Apr, arriving in Washington Dulles.Price includes taxes and charges.From £106, select.

Washington D.C..£107 per passenger.Departing Thu, 11 Jun.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Montreal Pierre Elliott Trudeau on Thu, 11 Jun, arriving in Washington Dulles.Price includes taxes and charges.From £107, select.

Washington D.C..£118 per passenger.Departing Mon, 18 May.One-way flight with Air Canada.Outbound direct flight with Air Canada departs from Montreal Pierre Elliott Trudeau on Mon, 18 May, arriving in Washington Dulles.Price includes taxes and charges.From £118, select.

Washington D.C..£118 per passenger.Departing Mon, 27 Apr.One-way flight with Air Canada.Outbound direct flight with Air Canada departs from Montreal Pierre Elliott Trudeau on Mon, 27 Apr, arriving in Washington Dulles.Price includes taxes and charges.From £118, select.

Washington D.C..£125 per passenger.Departing Sun, 27 Dec.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Montreal Pierre Elliott Trudeau on Sun, 27 Dec, arriving in Washington Dulles.Price includes taxes and charges.From £125, select.

Washington D.C..£125 per passenger.Departing Thu, 11 Jun.One-way flight with Air Canada.Outbound direct flight with Air Canada departs from Montreal Pierre Elliott Trudeau on Thu, 11 Jun, arriving in Washington Dulles.Price includes taxes and charges.From £125, select.

Washington D.C..£126 per passenger.Departing Tue, 13 Oct.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Montreal Pierre Elliott Trudeau on Tue, 13 Oct, arriving in Washington Dulles.Price includes taxes and charges.From £126, select.

Washington D.C..£126 per passenger.Departing Sat, 1 Aug.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Montreal Pierre Elliott Trudeau on Sat, 1 Aug, arriving in Washington Dulles.Price includes taxes and charges.From £126, select.

Washington D.C..£126 per passenger.Departing Wed, 22 Jul.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Montreal Pierre Elliott Trudeau on Wed, 22 Jul, arriving in Washington Dulles.Price includes taxes and charges.From £126, select.

Washington D.C..£130 per passenger.Departing Sun, 27 Sep.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Montreal Pierre Elliott Trudeau on Sun, 27 Sep, arriving in Washington Dulles.Price includes taxes and charges.From £130, select.

Washington D.C..£142 per passenger.Departing Sat, 26 Sep.One-way flight with Air Canada.Outbound direct flight with Air Canada departs from Montreal Pierre Elliott Trudeau on Sat, 26 Sep, arriving in Washington Dulles.Price includes taxes and charges.From £142, select.

Washington D.C..£147 per passenger.Departing Sun, 1 Nov.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Montreal Pierre Elliott Trudeau on Sun, 1 Nov, arriving in Washington Dulles.Price includes taxes and charges.From £147, select.

Washington D.C..£147 per passenger.Departing Fri, 1 Jan.One-way flight with Porter Airlines.Outbound indirect flight with Porter Airlines, departs from Montreal Pierre Elliott Trudeau on Fri, 1 Jan, arriving in Washington Dulles.Price includes taxes and charges.From £147, select.

Washington D.C..£155 per passenger.Departing Thu, 30 Jul.One-way flight with Air Canada.Outbound direct flight with Air Canada departs from Montreal Pierre Elliott Trudeau on Thu, 30 Jul, arriving in Washington Dulles.Price includes taxes and charges.From £155, select.

Washington D.C..£157 per passenger.Departing Tue, 4 Aug.One-way flight with Air Canada.Outbound direct flight with Air Canada departs from Montreal Pierre Elliott Trudeau on Tue, 4 Aug, arriving in Washington Dulles.Price includes taxes and charges.From £157, select.

Find the cheapest month to fly from Montreal to Washington Dulles

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Montreal to Washington Dulles flights are currently cheapest in May.

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Jan

Feb

Direct flights from Montreal to Washington Dulles

Montreal to Washington Dulles: Alternative routes

Compare routes from Montreal to Washington D.C. below. You may find an airport to fly into that's cheaper, faster, or easier than Washington Dulles.

Montreal to Washington D.C.: Flight information

The things to know before you go.

Cheapest flight found	£100
Cheapest month to fly	May
Average flight time	1 hr, 59 mins
Most popular airline	United
Average flights per week	132

Finding cheap flights from Montreal to Washington Dulles: Frequently asked questions

How much are return flights from Montreal to Washington Dulles?

The best price we found for a return flight from Montreal to Washington Dulles is £170. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Montreal to Washington Dulles?

1 hour and 59 minutes is the average flight time from Montreal to Washington Dulles.

Which airlines fly direct from Montreal to Washington Dulles?

United, Air Canada and Republic Airways fly direct from Montreal to Washington Dulles.

How many flights are there a week from Montreal to Washington Dulles?

As of March 2026, there are 132 flights per week flying from Montreal to Washington Dulles.

When is the cheapest time to fly from Montreal to Washington Dulles?

The cheapest month to fly from Montreal to Washington Dulles is usually May.

Which upcoming date is cheapest to fly from Montreal to Washington Dulles Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Montreal to Washington Dulles Airport on Wednesday, 6 May 2026.

Can I get a direct flight from Montreal to Washington Dulles Airport?

Yes – the average flight time is 1 hour and 59 minutes.

How can I find the best flight deal to Washington Dulles?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Washington Dulles but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Washington D.C.?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Washington D.C. is around 40 days in advance, so don’t leave your flight to the last minute.

Travelling from Montreal to Washington Dulles International Airport (IAD): What you need to know

Montreal's main base, Montreal-Trudeau International Airport (YUL), is where plenty of awesome adventures begin. Explore your departure options from here for your flight from Montreal to Washington Dulles International Airport (IAD).
Expect to be in the air for 1 hour 55 minutes. On average, that's the duration of a direct Montreal to Washington Dulles International Airport flight.
Washington DC (where Washington Dulles International Airport is located) and Montreal share the UTC-5 timezone. You can fly without needing to calculate any time difference.
With 25 direct weekly flights between the two airports, Montreal-Trudeau International Airport (YUL) to Washington Dulles International Airport (IAD) is the most popular route. United Airlines operates the earliest flight at 5:45am. If you'd like to get more out of your day before taking off, the last flight from YUL to IAD is with Air Canada at 7:10pm.
To ensure you catch your flight from Montreal to IAD, leave enough time to check in and find your gate. Arriving two hours before international departures and an hour before domestic flights is the general travel rule.
Popular months like July or other busy periods mean longer lines and possible delays. Stick to your schedule by arriving at the airport even earlier. Plan for at least four hours ahead of an international flight and two hours before a domestic departure.

Airports in Montreal

Montreal-Trudeau International Airport (YUL)

You can find a direct flight from Montreal to Washington Dulles International Airport (IAD) out of Montreal-Trudeau International Airport (YUL).
When taking off from YUL, you can take a direct flight from Montreal to Washington Dulles International Airport with United Airlines.
The airline with the highest booking numbers between YUL and IAD is United.
Air Canada takes the top spot for on-time performance. A reliable 82.58% of its departures on this route land as scheduled.
YUL is around 19 kms (12 miles) from central Montreal. If you're driving, ride-sharing or catching a taxi from the centre, it'll take you 25 minutes or so to get there, depending on the traffic. If you're planning to take public transport, expect the trip time to be around 45 minutes.
Searching for a comfortable hotel close to Montreal-Trudeau International Airport? If you're catching an early flight from Montreal to Washington Dulles International Airport, these stays will have you sleeping conveniently close to check-in:
Of all flights departing from Montreal-Trudeau International Airport, 65% arrive on time at their destination.
You'll find YUL at 975 Romeo Vachon Street North.

Montreal Metropolitan Airport (YHU)

With public transport, you can travel from central Montreal to YHU in about 1 hour. The airport is roughly 23 kms (14 miles) away, and getting there by car will take approximately 25 minutes.
Start your holiday early with an additional night away from home. Before your Montreal to IAD flight, unwind in one of these hotels near Montreal Metropolitan Airport:

About Washington Dulles International Airport (IAD)

Have a late flight from Montreal to Washington Dulles International Airport? Don't let it stretch your travel day into tomorrow. Check in to one of these hotels near IAD and fast-forward to bedtime:
Pick up a Washington Dulles International Airport rental car and explore Washington DC and beyond with your own set of wheels. Dollar, Thrifty and Sixt are leading providers you can book with here.
To lock in the lowest price, book your vehicle around one week in advance of your Montreal to Washington Dulles International Airport flight.
You'll find IAD at 1 Saarinen Circle.

Getting from Washington Dulles International Airport (IAD) to central Washington DC

From Washington Dulles International Airport, central Washington DC is around 40 kms (25 miles) away. It takes about 45 minutes to get to the city centre by car.
When travelling on public transport, expect a journey time of about 1 hour 10 minutes.

How to find the cheapest flights from Montreal to Washington Dulles International Airport (IAD)

Right now, £100 is the lowest price we've found for a one-way ticket from Montreal to Washington Dulles International Airport. The cheapest price for a return flight is £170. Keep in mind fares may change due to availability at the time of booking.
Book one month before your departure date. Pricing trends suggest that this is the ideal window for finding cheap flights from Montreal to IAD.
June is when you're most likely to find a bargain on a Montreal to Washington Dulles International Airport ticket. If you want to travel at a different time of year, the 'Whole month' tool will show you the lowest prices for each month.
Locking in a cheap plane ticket from Montreal to IAD is easy with Price Alerts. All you need to do is set up one of these automatic alerts and we'll let you know when there's a price drop.
Chase down a great fare on a flight from Montreal to Washington Dulles International Airport with the help of the filters. Choose your ideal departure and arrival times, airlines and number of stops. You can also sort your results by 'Cheapest,' 'Best' or 'Fastest.'

The best time to fly from Montreal to Washington Dulles International Airport (IAD)

It's time to figure out when to book your flight from Montreal to Washington Dulles International Airport (IAD). May is when most people visit Washington DC. If crowds aren't your thing, think about going in February.
Book a Montreal to IAD plane ticket departing in July if you want to visit the city during its warmest month. You can expect temperatures in Washington DC to range from 19ºC to 33ºC.
Search for cheap tickets from Montreal to Washington Dulles International Airport in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between -6ºC and 10ºC.

More about Washington DC

After booking your flight from Montreal to Washington Dulles International Airport, find a hotel that puts you in a great location. Make one of these accommodation options your base for exploring Washington DC:
Lincoln Memorial and The White House are just two of the big attractions to add to your Washington DC travel itinerary. Keep the adventure rolling by checking out Smithsonian National Museum of Natural History.

Explore more of the United States

Washington DC has plenty to offer, but there are so many other parts of the United States waiting to be explored. Around 225 kms (140 miles) north-east of Washington DC, a trip to Philadelphia will keep you on the go. Check out popular attractions like Independence Hall, Liberty Bell and Philadelphia Museum of Art.
If you're looking to explore another side of the United States, consider Virginia Beach, about 274 kms (170 miles) south-east of Washington DC. Virginia Beach Oceanfront, Virginia Beach Boardwalk and Resort Beach are among the biggest draws.