$112 Find Cheap Flights from Canada to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Dulles Intl departing on 12/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Washington, D.C., as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$177
Typical prices: $389-$544
Multiple Airlines
Fri 12/12Sun 12/14
YWG - IAD • 1 stop
Cheapest non-stop
$188
Typical prices: $211-$331
Porter Airlines
Fri 12/5Mon 12/8
YTZ - IAD • Non-stop
Our travelers' advice
AI-generated summary based on content written by KAYAK users
Choose Air Canada's regional jets for more legroom.
United Airlines allows only one carry-on per passenger.
User tips
User tips
User tips
User tips
Top airlines
United Airlines
Most flights • 56 per week
Porter Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
YVR-IAD
Cheapest
YYZ-IAD
Most popular
Insights
Insights
Insights
Insights
When to travel
July
Cheapest • 24% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Canada to Dulles Intl

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Canada to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Canada to Dulles Intl

Fri, Dec 12 - Sun, Dec 14
Multiple Airlines Logo
7:30 am - 4:24 pmYWG-IAD
7h 54m1 stop
Multiple Airlines Logo
5:45 am - 3:07 pmIAD-YWG
10h 22m1 stop
$177Multiple Airlines
Find Deal
Fri, Dec 5 - Mon, Dec 8
Porter Airlines Logo
3:45 pm - 5:14 pmYTZ-IAD
1h 29mnonstop
Porter Airlines Logo
11:40 am - 1:10 pmIAD-YTZ
1h 30mnonstop
$188Porter Airlines
Find Deal
Fri, Jan 16 - Tue, Jan 20
Air Canada Logo
2:20 pm - 3:54 pmYYZ-IAD
1h 34mnonstop
Air Canada Logo
4:30 pm - 5:58 pmIAD-YYZ
1h 28mnonstop
$219Air Canada
Find Deal
Thu, Dec 4 - Sun, Dec 7
Air Canada Logo
5:30 pm - 9:22 pmYYZ-IAD
3h 52m1 stop
Air Canada Logo
9:00 am - 10:29 amIAD-YYZ
1h 29mnonstop
$224Air Canada
Find Deal
Fri, Jan 16 - Tue, Jan 20
United Airlines Logo
2:45 pm - 4:30 pmYYZ-IAD
1h 45mnonstop
United Airlines Logo
8:29 am - 1:43 pmIAD-YYZ
5h 14m1 stop
$227United Airlines
Find Deal
Thu, Nov 20 - Mon, Nov 24
United Airlines Logo
7:40 pm - 9:20 pmYYZ-IAD
1h 40mnonstop
United Airlines Logo
8:45 am - 1:43 pmIAD-YYZ
4h 58m1 stop
$228United Airlines
Find Deal
Wed, Nov 26 - Sat, Dec 6
Delta Logo
12:07 pm - 11:52 pmYVR-IAD
8h 45m1 stop
Delta Logo
6:03 am - 11:03 amIAD-YVR
8h 00m1 stop
$271Delta
Find Deal
Thu, Nov 27 - Thu, Dec 4
Delta Logo
11:40 am - 12:25 amYVR-IAD
9h 45m1 stop
Delta Logo
11:06 am - 9:04 pmIAD-YVR
12h 58m2 stops
$275Delta
Find Deal
Tue, Dec 2 - Tue, Dec 9
WestJet Logo
12:50 pm - 11:08 pmYUL-IAD
10h 18m1 stop
WestJet Logo
6:00 am - 12:00 pmIAD-YUL
6h 00m1 stop
$323WestJet
Find Deal
Thu, Jan 15 - Sun, Jan 18
WestJet Logo
5:21 pm - 11:57 pmYWG-IAD
5h 36m1 stop
WestJet Logo
12:37 pm - 12:41 amIAD-YWG
13h 04m2 stops
$423WestJet
Find Deal
Booking Insights

KAYAK's insights & trends for flights to Dulles Intl

Get data-powered insights and trends for flights to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Washington Dulles Airport?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the cheapest flight deal to Washington Dulles Airport was found on the route from Vancouver, at $112 one-way and $177 return. The most popular connection is from Toronto to Washington Dulles Airport and KAYAK users have found round-trip deals for as low as $202 in the last 3 days.

How much is a flight to Washington, D.C. Dulles Intl Airport?

The average and cheapest price for all round-trip flights to Washington, D.C. Dulles Intl Airport from each origin found by users searching on KAYAK in the last month.

On average, a flight to Washington, D.C. Dulles Intl Airport costs $440. The cheapest price found on KAYAK in the last 2 weeks cost $119 and departed from Toronto Island Airport. The most popular routes on KAYAK are Toronto to Washington, D.C. Dulles Intl Airport which costs $557 on average, and Montreal to Washington, D.C. Dulles Intl Airport, which costs $717 on average.

See prices from:

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Washington, D.C. Dulles Intl Airport is June, where tickets cost $264 on average for one-way flights. On the other hand, the most expensive months are December and September, where the average cost of tickets from Canada is $610 and $467 respectively. For return trips, the best month to travel is July with an average price of $195.

What is a good deal for flights to Washington, D.C. Dulles Intl Airport?

If you’re looking for cheap airfare to Washington, D.C. Dulles Intl Airport, 25% of our users found tickets to Washington, D.C. Dulles Intl Airport for the following prices or less: From Toronto Island Airport $148 one-way - $196 round-trip, from Toronto Pearson Intl Airport $185 one-way - $287 round-trip, from Montreal Pierre Elliott Trudeau Intl Airport $256 one-way - $371 round-trip.

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 61 days before departure.

Good to know

Low seasonSeptember
Cheapest flight$112
Best time to beat the crowds but there is an average 12% increase in price.
Most popular time to fly with an average 26% increase in price.
Flight from Vancouver to Washington Dulles Airport

Flights from Canada to Dulles Intl: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Canada to Dulles Intl 
Verified travelerFlew with Air CanadaYYZ-IADDec 2024
Get on a regional sized (smaller than Boeing 737 or Airbus A320) jet if you can, they are older and have more legroom than newer aircraft.
Verified travelerFlew with United AirlinesYYZ-IADNov 2024
Do not carry bigger the specified sized bags for cabin baggage. Only one carry on ba

FAQs - booking Washington Dulles Airport flights

  • What is the cheapest flight to Washington Dulles Airport?

    In the last 3 days, the cheapest flight deal to Washington Dulles Airport was found on the route from Vancouver, at $112 one-way and $177 return. The most popular connection is from Toronto to Washington Dulles Airport and KAYAK users have found round-trip deals for as low as $202 in the last 3 days.

  • How far is Washington, D.C. Dulles Intl Airport from central Washington, D.C.?

    The city center of Washington, D.C. is 22 miles from Washington, D.C. Dulles Intl Airport.

  • How much is a flight to Washington, D.C.?

    On average, a flight to Washington, D.C. costs $440. The cheapest price found on KAYAK in the last 2 weeks cost $119 and departed from Toronto Island Airport.

  • What is the cheapest day to fly to Washington, D.C.?

    Based on KAYAK data, the cheapest day to fly to Washington, D.C. is Saturday where tickets can be as cheap as $399. On the other hand, the most expensive day to fly is Monday, where prices are $570 on average.

  • How does KAYAK find such low prices on flights to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Washington, D.C. Dulles Intl Airport?

    The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is generally in the evening, when flights cost $218 on average. The most expensive time of day to fly to Washington, D.C. Dulles Intl Airport is generally at night, which is peak travel time and where the average cost of a ticket is $431.

Top tips for finding cheap flights to Washington Dulles Airport

  • Looking for cheap airfare to Washington Dulles Airport? 25% of our users found round-trip tickets to Washington Dulles Airport for the following prices or less: From Calgary $261, from Ottawa $338, from Vancouver Intl $389
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Washington Dulles Airport flight deals.

Reviews of the top 5 airlines serving from Canada to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Canada to Washington, D.C.. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Porter AirlinesOverall score based on 384 reviews
7.6Food
8.6Crew
8.0Comfort
8.2Boarding
7.0Entertainment
Airline reviews

Smaller plane. Food and bar service for free is amazing. Drinks were in glass not plastic cups.

10.0 ExcellentMike, Oct 2025YYC - YYZ
Read more Porter Airlines reviews

Smaller plane. Food and bar service for free is amazing. Drinks were in glass not plastic cups.

Poor landing as we overshot the runway and had to re land the plane. Lost both of my luggage not found as of yet. Had to pay extra money for my luggage in USD, now great my luggage is gone. Will not fly with Porter again.

This flight to St. Johns was really good. Boarding was a breeze. We left spot on time. Seats were actually pretty good. Recliner further than I expected. Three more flights to go we will see if this is the status quo for Porter.👍

I was not happy with AirfareAssist, the agency that kayak advised me would be handling my booking. I was advised by porter airlines that I had been overcharged for the Basic express , a option that I had asked airfare assist to help arrange after I realized that the basic fare I had chosen with porter did not include a carryon. At each checkin porter advised I had been overcharged for this . They advised that money would be refunded to my credit card, however, this is not likely to happen as it is not my name and credit card that appeared on the porter invoice, but that of another individual/agent. When airfare assist was arranging the basic express with porter on my behalf, they asked me to confirm that I agreed to pay $263 USD for this. I did agree, as I was advised this was needed to proceed. When I checked the invoice on the porter website and saw that it was not my name and credit card on the invoice, I was advised that this was how airfareassist processed the payment. The Porter invoice indicated a billed amount of $126USD I will not use Kayak or their designated AirfareAssist again

Our flight was delayed by a bit. I appreciated that we were kept informed on why periodically. Boarding was fine. I overheard one flight attendant sounding very rude to a passenger who was not paying attention to the safety demonstration. The snacks were minimal as it was a short flight. There was no entertainment. Overall the flight was good back to LGA.

The flight was fine see earlier note for the problem

All good the seats a little tight and no I pad screen

Everything was good except the fact you charge more for a carry on bag vs a check in bag and to top it off in US$ that was not impressive

Our flight was cancelled at the last minute for maintenance reasons and we were rebooked on a late flight when we purposefully booked our flight to be home early due to work.

Seemed like an old plane. Very noisy. The seat cushions were so old that the metal bracing of the seats were poking through. There was plenty of leg room though.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

Seats comfortable, service and food very mediocre, staff not very attentive, worse than many other our flights with Delta.

Overall good experience; however, there was one flight attendant who was rather rough compared to everyone else. Everything else was good: entertainment, food. Delta keeps on delivering! Thank you!

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Crew blocked exits to front of ship with galley carts. Also split five person family apart on international flight without fixing.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Crew was dismissive. Snacks and refills not offered. Poor business class experience. Bed not comfortable compared to Emirates or BA.

Flight was delayed for 5 hours because crew didn’t have enough time to rest - this seems like it could have been avoided with better scheduling. Food was not good.

IAD with the archaic people movers is just a place to be avoided.

Overall, it was good. I was seating next to a wonderful lady and did not notice how time flew. Thanks

This is the best united airlines flight that I took. The crew was very friendly and the food was tasty!

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

Had one staff that was not pleasant. Seems they are stressed with too many people to care for.

I would have liked an opportunity to move to a different seat ( even would have checked in my hand luggage)as I had health issues where I didn't have to clamber over the passenger next to me to for toilet use/ movement [ She was a highly unpleasant neighbor to sit next to]. In addition, I found that my European phone plan had run out of data and so I was not receiving emails from yourselves on airport wifi to be able to check in online and verifications difficult as did not accept the ticket number I had. I asked for an extra blanket but was told there was none. Then I saw other passengers receiving them. I couldn't eat the food and asked for snacks : Stewardess said " on the way" but they did not bring. The best bit was the check in process in Lisbon. Very efficient. However, I did not understand why we had to collect our bags at Washington then go through customs again. It was not explained. I also with my leg and health issue had approximately mile walk to the gate ( which then changed) . There appeared to be no moving walkways or help provided.

The attendant were friendly. I suggest you have a medical attendant on board every flight so that in case someone is sick , he/she will help them.

We had a very long diversion and our food voucher didn’t work because the restaurants were closed

Do not fly on WestJet if you have a connection. It failed to integrate with my connecting Delta flight and I almost missed it.

There was a man who was very rude at boarding. On the other hand personal bag measuring box is too small compared to USA airlines,

A little better seat cushions would be appreciated. Crews were all good.

The process and flight were both smooth and trouble free

Flight delayed 3 hours, missed my connection in Atlanta. Instead of getting to Savannah at 6PM arrived after 10:00PM Middle seat, couldn't get isle or window, couldn't book my seats in advance, had to book at the gate. That's a 1st for me and I used to travel a lot

my carry-on bag was delayed and I did not receive it until the day of my return at the airport. This delay caused me significant inconvenience, as I did not have access to my personal belongings for the duration of my trip. I had expected to rely on my carry-on items, and being without them negatively impacted my travel experience.

Technology issues at the bag-check counter caused a delay, and we were unable to check out our bags, ultimately missing our flight. They offered no assistance other than telling us to book another flight out of Calgary. We arrived with plenty of time; if there hadn't been an issue with the kiosk and the length of the lines due to the technical issues, we could have made it home.

Worst check in and bag drop off experience. Staff were incredibly rude given that it’s the WestJet system that is faulty.

The staff at the airport and on the plane were wonderful I especially wanna acknowledge the staff who boarded us at the Calgary airport. The women who helped us board at the airport were incredible… they were so kind and sweet…I very happy with WestJet and I am hoping I can fly more often to Canada.

We were happy with our experience. The price for tickets was much less than Delta and we actually took off and landed a little ahead of scheduled times.

The free Wi-fi for Aeroplan members was a great touch. The time passed quickly. I found the seats seemed a little closer together than I remember. Not Air Canada's fault, but we were about 20 minutes late landing because the airport was too busy. We had to circle around for a while. The boarding and disembarking went very smoothly.

It was crazy, boarded over a hour late from scheduled departure. Then when arrived in BNA issued with getting off the plane…over 1/2 hour. Not looking forward to flying Air Canada, ever again.

Extremely turbulent landing. Crew was friendly and plane comfortable. Airport and US pre clearance was understaffed

The airplane is way too tight, you can hardly enter into your row to sit.. more like kids seats than adults.

taking our carryon and forcing us to check it through

Wifi was great. Kind air crew and comfortable seating. Also liked the entertainment options.

Great flight. Only complaint is it took over an hour for my luggage to get to the carousel on the return to LAX That was irritating

I knew I was going to fall asleep unsettlingly from exhaustion so I warned the guy next to me in advance. The attendant took to checking on me frequently and even insisted I take my snack because I said no while sleep hazed and then absolutely wanted it about 5 minutes later. He was So caring and kind to my situation!!

First message when all on board was that we didnt have a pilot, then they found one, then it was something about the bridge something not working, they will either fix or do manually. Flight of course was leaving late with all the cruise guests worrying about making it to their ship in time. Then only some luggage made it off the ship. Around 15 to 20 people waiting. 45 min later arrived except mine. I asked the rep at the luggage conveyor, he asked me my name. Then said it was not picked up with the first batch so they put it in a room. I was going to take public transport but now worried about time so took a taxi that cost me $65 USD

The flight was very smooth and good. Boarding was fast, but the staff was just decently friendly.

Traveling to a place near Dulles Intl?

Book flights to Dulles Intl if you plan to visit one of these locations
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Oxon Hill
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Hyattsville

Everything you need to know for your flight to Dulles Intl

Information on the airport you'll fly into in Washington, D.C.

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