IAD

C$ 140 Find Cheap Flights to Washington, D.C.

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Washington, D.C. departing on 17/9. 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

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These are the airlines KAYAK users have selected most often from within our search results for flights to Washington, D.C.
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Cheap Flights to Washington, D.C.

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights to Washington, D.C. 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 to Washington, D.C.

Fri, 5 Sep - Mon, 8 Sep
WestJet Logo
11:30 a.m. - 5:50 p.m.YYC-IAD
4h 20mdirect
WestJet Logo
6:45 p.m. - 9:39 p.m.IAD-YYC
4h 54mdirect
C$ 196WestJet
Find Deal
Mon, 6 Oct - Sun, 12 Oct
United Airlines Logo
7:00 a.m. - 9:11 p.m.YHZ-IAD
15h 11m1 stop
United Airlines Logo
10:35 p.m. - 2:03 p.m.IAD-YHZ
14h 28m1 stop
C$ 200United Airlines
Find Deal
Fri, 5 Sep - Mon, 8 Sep
WestJet Logo
11:30 a.m. - 5:50 p.m.YYC-IAD
4h 20mdirect
WestJet Logo
6:45 p.m. - 9:39 p.m.IAD-YYC
4h 54mdirect
C$ 211WestJet
Find Deal
Tue, 28 Oct - Thu, 30 Oct
Porter Airlines Logo
9:00 a.m. - 10:29 a.m.YTZ-IAD
1h 29mdirect
Porter Airlines Logo
6:35 p.m. - 8:05 p.m.IAD-YTZ
1h 30mdirect
C$ 257Porter Airlines
Find Deal
Thu, 9 Oct - Tue, 14 Oct
Porter Airlines Logo
1:35 p.m. - 3:06 p.m.YTZ-IAD
1h 31mdirect
Porter Airlines Logo
4:20 p.m. - 5:53 p.m.IAD-YTZ
1h 33mdirect
C$ 258Porter Airlines
Find Deal
Tue, 30 Sep - Tue, 7 Oct
Air Canada Logo
11:55 p.m. - 9:38 a.m.YYC-IAD
7h 43m1 stop
Air Canada Logo
9:35 a.m. - 3:50 p.m.IAD-YYC
8h 15m1 stop
C$ 260Air Canada
Find Deal
Thu, 18 Sep - Tue, 30 Sep
Air Canada Logo
5:25 a.m. - 9:38 a.m.YHZ-IAD
5h 13m1 stop
Air Canada Logo
9:35 a.m. - 4:10 p.m.IAD-YHZ
5h 35m1 stop
C$ 269Air Canada
Find Deal
Sat, 4 Oct - Wed, 8 Oct
Air Transat Logo
1:35 p.m. - 3:06 p.m.YTZ-IAD
1h 31mdirect
Air Transat Logo
4:20 p.m. - 5:53 p.m.IAD-YTZ
1h 33mdirect
C$ 301Air Transat
Find Deal
Thu, 18 Sep - Tue, 30 Sep
Delta Logo
6:40 a.m. - 4:27 p.m.YHZ-IAD
10h 47m2 stops
Delta Logo
10:07 a.m. - 11:13 p.m.IAD-YHZ
12h 06m2 stops
C$ 312Delta
Find Deal
Thu, 11 Sep - Sun, 14 Sep
Delta Logo
6:13 p.m. - 11:06 p.m.YYZ-IAD
4h 53m1 stop
Delta Logo
5:00 p.m. - 10:56 p.m.IAD-YYZ
5h 56m1 stop
C$ 345Delta
Find Deal

Expert advice for your flight to Washington, D.C.

 
Snippets provided in this section are AI-generated based on a summarisation of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Air Canada

Air Canada's Preferred Economy seats offer up to 10 cm extra legroom for an additional fee.


Air Canada's Aeroplan program offers free membership and points for flights and upgrades.

Read more about Air Canadaby Stefanie Waldek
Porter Airlines

Porter's PorterReserve offers extra legroom, priority boarding, and free ticket changes.


Porter offers free drinks including Canadian wines and craft beers in real glasses.

United Airlines

United's Economy Plus seats offer up to 15 cm more legroom than standard economy seats.


United's Priority Boarding puts you in Zone 2, avoiding carry-on space issues in higher zones.

WestJet

WestJet's Premium cabin offers 5-18 cm more legroom and priority boarding on narrowbody aircraft.


WestJet's EconoFlex fare includes a checked bag, seat selection, and free changes or cancellations.

Read more about WestJetby Stefanie Waldek
Air Transat

Air Transat offers in-flight entertainment on most planes; bring your own headphones for the 3.5mm plug.


Air Transat's Eco Flex fare includes a standard seat reservation and no change fees, but fare differences apply.

Delta

Delta's Comfort Plus seats offer up to 8 cm more legroom than Main Cabin seats.


Delta offers free messaging for SkyMiles members on flights with Wi-Fi.

Read more about Deltaby Stefanie Waldek
Airports
IAD

The Silver Line Metro connects IAD to D.C. city centre in about 50 minutes, offering a convenient public transport option.

Read more about IADby Stefanie Waldek
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Air Canada, United Airlines, WestJet, Delta and IAD

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
John Walton

John Walton

Expert on Porter Airlines and Air Transat

John Walton

John Walton

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Read more
Booking Insights

KAYAK's insights & trends for flights to Washington, D.C.

Get data-powered insights and trends into flights to Washington, D.C. to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Washington, D.C.?

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, D.C. was found on the route from Halifax, at C$ 196 return. The most popular connection is from Toronto to Washington, D.C. and KAYAK users have found round-trip deals for as low as C$ 292 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.

A flight to Washington, D.C. Dulles Intl Airport costs C$ 622 on average. The cheapest price found on KAYAK in the last 2 weeks cost C$ 133 and departed from Toronto Island Airport. The most popular routes on KAYAK are Toronto to Washington, D.C. Dulles Intl Airport which costs C$ 842 on average, and Montreal to Washington, D.C. Dulles Intl Airport, which costs C$ 962 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 July, where tickets cost C$ 269 on average for return flights. On the other hand, the most expensive months are October and November, where the average cost of tickets from Canada is C$ 571 and C$ 426 respectively. For one-way flights, the best month to travel is June with an average price of C$ 365.

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 C$ 259 round-trip, from Calgary C$ 492 round-trip, from Toronto Pearson Intl Airport C$ 509 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 3 weeks before departure, which saves you about 45% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know – Book Cheap Washington, D.C. Dulles Intl Airport Plane Tickets

Low seasonFebruary
Cheapest flightC$ 140
Best time to beat the crowds (5% less expensive on average)
Most popular time to fly (32% more expensive on average)
Flight from Halifax to Washington Dulles Airport

When to book flights to Washington, D.C.

Are your dates flexible? Find out the best times to travel to Washington, D.C. based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. The information is for flights to Washington, D.C. based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Flights to Washington, D.C.: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew to Washington, D.C. 
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, D.C. flights

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

    In the last 3 days, the cheapest flight deal to Washington, D.C. was found on the route from Halifax, at C$ 196 return. The most popular connection is from Toronto to Washington, D.C. and KAYAK users have found round-trip deals for as low as C$ 292 in the last 3 days.

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

    You’ll need to travel 36 km to reach the Washington, D.C. city centre 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 C$ 622. The cheapest price found on KAYAK in the last 2 weeks cost C$ 133 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 Friday where round-trip tickets can be as cheap as C$ 649. On the other hand, the most expensive day to fly is Monday, where round-trip prices are C$ 960 on average.

  • How does KAYAK find such low prices on flights to Washington, D.C.?

    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, D.C..

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Washington, D.C.?

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

  • What is the Hacker Fare option on flights to Washington, D.C.?

    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, D.C. 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, D.C.?

    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, D.C. 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 round-trip flights cost C$ 354 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 C$ 547.

  • How many direct flights to Washington, D.C. Dulles Intl Airport are there each week?

    Each week there are around 111 direct flights from within Canada to Washington, D.C. Dulles Intl Airport. The most common day for departures is Monday, with 15% of flights taking off on this day.

Top tips for finding cheap flights to Washington, D.C.

  • Looking for cheap airfare to Washington, D.C.? 25% of our users found round-trip tickets to Washington, D.C. for the following prices or less: From Calgary C$ 408, from Ottawa C$ 832, from Montreal Pierre Elliott Trudeau Intl C$ 944
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Washington, D.C. flight deals.

Reviews of the top 5 airlines flying to Washington, D.C.

 
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 Washington, D.C.? 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 333 reviews
7.0Entertainment
8.2Boarding
8.7Crew
8.0Comfort
7.6Food
Airline reviews

There was a 5 hour delay. Missed connection and now an almost 21 hour lay over!

2.0 MediocreKirsten, Aug 2025BOS - YOW
Read more Porter Airlines reviews

There was a 5 hour delay. Missed connection and now an almost 21 hour lay over!

The flight was fine see earlier note for the problem

Three hours on the tarmac with almost zero communication from the cockpit. Not when offered a water in the interim. In my 67 years of flying all over the world the worst experience ever. The plane was half empty, however had to pay for seats to sit next to my girlfriend. Extra to take a carry on. I would never fly Porter again even for free.

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.

Flight was delayed over 2 hours, then landed at a different airport!

The whole experience from check in to deboarding was fantastic.

Just an evening before they canceled my ticket and offered me ticket costing 3 x times more than. I will not fall prey to these scams,Will never book through kayak now. Such a bad experience.

It’s ok just the boarding point is far too far

Check in slow even though completed online check in, there was no bag drop available so had to query for 90mins as only 2 staff on desks.

Flying to a far away destination is a miracle in itself, so please take these with a grain of salt. The seats are a bit tired, and need a freshen up. The entertainment could be a bit newer, especially with all services available now. The food really is where we need help. But again, flying is a privilege, so all is good.

Not so much porter it's your site! Not good

They are a sister company with Air Transat and the two companies do not work well together. If you have any issues the two companies will blame each other and you will miss your flights. The help line does not help

Never book through a third party. Book through Air transats website. Terrible process to get help and many issues happen with them and sister companies because half the flights you book with them aren’t even through air transat.

The plane was pretty full, and we dis not have any includes meal for our 4h30 flight? And on-board entertainment wasn't available, there was no TV or plugging to charger your device on the plane. They told us to download an app if we wanted to watch movies but it never connected, that was a disappointment, the r we st was very good though and the crew were really nice!

Seats were very tight especially for first leg of trip.

Not necessarily a Transat issue but it took 2 hours to go through immigration. Tried to reach out to Transat for resolution but was unable to reach an agent.

The flight was excellent, once it started, however we were delayed two hours when the first plane’s engines wouldn’t start. They found another identical plane and transferred us and our luggage in under two hours and made up almost an hour in the air.

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

United airlines, mediocre at best. No issues , nothing great . Worked for me

Turbulent taking off & landing to Dulles from Raleigh. Flight from Dulles to Tokyo very good!!

Very nice and clean plane. Transit time between flights was tight though

Mostly the experience was good except for the flight changes made by UA which meant longer layover in DC

Terrible. First of all we were delayed 4 3/4 hours departing Honolulu. As we had to leave our condo and the rental car had to be returned we had to go to the airport. Even though we had a business class boarding pass to Washington, since we did not have business class to Montreal we could not access the lounge without paying a $59 fee each. This does not make sense to us. Since we could not meet our original connection United booked us to Montreal via New York LaGuardia on Air Canada. In Washington a further delay got us into LaGuardia too late to make our connection to Montreal so we were booked on another Air Canada flight 3 hours later. We were originally scheduled to arrive in Montreal at 10:40 and arrived at 19:55. A totally exhausting day, United did not offer a meal voucher or any type of compensation. Air Canada did give us a digital meal voucher. The food in United business class is poor among all meals offered. The pods look nice but are not that confortable. Overall would not fly on United again.

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.

Seat back entertainment monitors would be nice. We did enjoy the In-Flight WiFi.

Our flight schedule was changed over six times, ultimately leaving us with a layover much shorter than we originally booked, which meant a panicked run through the airport. And the entertainment screen didn't function. As I've come to expect with Delta, a very mediocre and not customer-focused experience. This is on top of an outbound flight that was so delayed by mechanical issues, we had to spend the night at our layover city.

Staff were courteous and helpful. The only negative was the flight delays (which are usually unavoidable) and the high baggage price.

Absolutely terrible, from the customer service to boarding the plane. On the phone, there was some mishaps with getting in my correct date and they did not help me retrieve a refund or any assistance. I’m gonna be reporting to all my followers and family around the region of Los Angeles to New York.

Could not fly out of Canada. Called airlines on Monday, July 14th. Tried to cancel the flight 7 days away, but they said I could not cancel and there would be no refund.

Could not understand what the attendant was saying during his announcements.

Biggest problem for me is that I am Star Alliance Gold and they were not able to give me access to to Maple Lounge because of some computer glitch . It was management by information system. She could clearly see my status and still would not give me access because the computer woudl not let her. She should have override that be attentive to a customer and figure rhat out later

Economy seats always cramped, no meal on international flight, no plugs for electronics, but we got there and cabin crew was excellent.

Horrible, experience, 5 hours delay, they changed gates 3 times, the last one we had to wait for 1::30 hre for the door to open to get to that gate. 0 apologies from Air Canada, they don’t care at all about their passengers

I paid for comfort plus seats but did not get the extra leg room. When I told the stewardess, she just ignored me.

Great breakfast and coffee …..fastest bag service I have ever had in NOLA

I had a very disappointing experience with customer service. I was suffering from a severe viral infection that included a rash and persistent cough, leaving me unable to even sit upright. Given the circumstances, I requested travel credits from Canada Air, explaining the potential health risk to others onboard. However, the airline showed no concern for my condition and stated they were not in a position to make decisions based on health considerations. Despite my illness, I received no support or flexibility. Ultimately, I chose to forgo my flight due to their lack of responsiveness. It’s unfortunate that airlines like this operate without prioritizing passenger health and safety.

Late departing. Late arriving. More worried about limiting bags on board. Free beer and wine a nice surprise.

I did not noticed baggage was separate - I had assumed international flights included luggage, so it surprised me I had to pay to check a bag.

Flight got delayed for no reason. And Air Canada was doing 3 boardings via the same gate. It was chaotic!

Travelling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Arlington
Winchester
Fredericksburg
Bethesda
Springfield
Rockville
Gettysburg
Sterling
Laurel
Annapolis
Woodbridge
Bowie
Fairfax
Tysons
Silver Spring
National Harbor
Chantilly
Herndon
Linthicum Heights
Gaithersburg

Everything you need to know for your flight to Washington, D.C.

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