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C$ 175 Find Cheap Flights to Washington, D.C. – Compare and Save

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Everything you should know

Cheapest round-trip
C$ 257
Typical prices: C$ 279-C$ 463
Porter Airlines
Mon 28/9Thu 8/10
YTZ - IAD • Direct
Cheapest one-way flights
C$ 175
Typical prices: C$ 202-C$ 527
Air Canada
Thu 10/9
YYZ - IAD • Direct
Advice from real travellers
WestJet EconoFlex adds a checked bag, seat selection, and free changes.
Porter PorterReserve adds legroom, priority boarding, and free ticket changes.
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Best reviews • 8.0 score
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When to book
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 51% compared to booking last minute.
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Cheapest • 13% price drop
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Flight Deals

Cheap Flights to Washington, D.C.

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals to Washington, D.C.

Mon, 28 Sep - Thu, 8 Oct
Porter Airlines Logo
9:15 a.m. - 10:45 a.m.YTZ  Toronto Island-IAD Washington, D.C. Dulles Intl
1h 30mdirect
Porter Airlines Logo
3:50 p.m. - 5:20 p.m.IAD  Washington, D.C. Dulles Intl-YTZ Toronto Island
1h 30mdirect
C$ 257Porter Airlines
Fri, 25 Sep - Fri, 2 Oct
Porter Airlines Logo
9:15 a.m. - 10:45 a.m.YTZ  Toronto Island-IAD Washington, D.C. Dulles Intl
1h 30mdirect
Porter Airlines Logo
11:25 a.m. - 12:55 p.m.IAD  Washington, D.C. Dulles Intl-YTZ Toronto Island
1h 30mdirect
C$ 257Porter Airlines
Sat, 3 Oct - Sat, 10 Oct
Air Canada Logo
3:15 p.m. - 4:38 p.m.YTZ  Toronto Island-IAD Washington, D.C. Dulles Intl
1h 23mdirect
Air Canada Logo
5:20 p.m. - 6:56 p.m.IAD  Washington, D.C. Dulles Intl-YTZ Toronto Island
1h 36mdirect
C$ 259Air Canada
Wed, 7 Oct - Wed, 14 Oct
Air Canada Logo
3:15 p.m. - 4:41 p.m.YTZ  Toronto Island-IAD Washington, D.C. Dulles Intl
1h 26mdirect
Air Canada Logo
5:20 p.m. - 6:56 p.m.IAD  Washington, D.C. Dulles Intl-YTZ Toronto Island
1h 36mdirect
C$ 260Air Canada
Mon, 5 Oct - Mon, 12 Oct
Multiple Airlines Logo
1:40 p.m. - 3:10 p.m.YTZ  Toronto Island-IAD Washington, D.C. Dulles Intl
1h 30mdirect
Multiple Airlines Logo
5:20 p.m. - 6:56 p.m.IAD  Washington, D.C. Dulles Intl-YTZ Toronto Island
1h 36mdirect
C$ 278Multiple Airlines
Sat, 26 Sep - Sun, 27 Sep
Air Transat Logo
9:15 a.m. - 10:45 a.m.YTZ  Toronto Island-IAD Washington, D.C. Dulles Intl
1h 30mdirect
Air Transat Logo
11:25 a.m. - 12:55 p.m.IAD  Washington, D.C. Dulles Intl-YTZ Toronto Island
1h 30mdirect
C$ 280Air Transat
Thu, 10 Sep - Sun, 13 Sep
Multiple Airlines Logo
10:45 a.m. - 3:00 p.m.YTZ  Toronto Island-IAD Washington, D.C. Dulles Intl
4h 15m1 stop Montreal Pierre Elliott Trudeau Intl
Multiple Airlines Logo
11:25 a.m. - 12:55 p.m.IAD  Washington, D.C. Dulles Intl-YTZ Toronto Island
1h 30mdirect
C$ 280Multiple Airlines
Fri, 9 Oct - Sun, 11 Oct
United Airlines Logo
12:45 p.m. - 2:22 p.m.YYZ  Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl
1h 37mdirect
United Airlines Logo
12:43 p.m. - 2:19 p.m.IAD  Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl
1h 36mdirect
C$ 284United Airlines
Thu, 24 Sep - Fri, 23 Oct
United Airlines Logo
2:30 p.m. - 4:07 p.m.YYZ  Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl
1h 37mdirect
United Airlines Logo
8:28 a.m. - 10:04 a.m.IAD  Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl
1h 36mdirect
C$ 284United Airlines
Sun, 20 Sep - Tue, 22 Sep
Air Transat Logo
9:15 a.m. - 10:45 a.m.YTZ  Toronto Island-IAD Washington, D.C. Dulles Intl
1h 30mdirect
Air Transat Logo
11:25 a.m. - 12:55 p.m.IAD  Washington, D.C. Dulles Intl-YTZ Toronto Island
1h 30mdirect
C$ 292Air Transat
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.?

In the last 5 days, the cheapest flight deal to Washington, D.C. was found on the route from Toronto, at C$ 257 round-trip. The most popular connection is from Toronto to Washington, D.C., while KAYAK users have found round-trip deals for as low as C$ 257 in the last 5 days.

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

A flight to Washington, D.C. Dulles Intl Airport costs C$ 593 on average. The cheapest price found on KAYAK in the last 2 weeks cost C$ 153 and departed from Toronto Island Airport. The most popular routes on KAYAK are Toronto to Washington, D.C. Dulles Intl Airport which costs C$ 409 on average, and Toronto to Washington, D.C. Dulles Intl Airport, which costs C$ 783 on average.

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$ 719. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are C$ 1,012 on average.

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

The cheapest month for flights to Washington, D.C. Dulles Intl Airport is February, where tickets cost C$ 401 on average for return flights. On the other hand, the most expensive months are August and June, where the average cost of tickets from Canada is C$ 527 and C$ 518 respectively. For one-way flights, the best month to travel is November with an average price of C$ 285.

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$ 523 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$ 834.

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$ 263 round-trip, from Toronto Pearson Intl Airport C$ 499 round-trip, from Calgary C$ 636 round-trip.

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

To get a below average price, you should book around 3 weeks before departure, which saves you about 51% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Expert advice

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

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

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

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.

John Walton

John Walton

Expert on Porter Airlines and Air Transat

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.

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

Low season

January

Cheapest flight

C$ 175
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly (5% more expensive on average)
Flight from Toronto Pearson Airport 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

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 Canada-Dec 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 Airlines-Nov 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 5 days, the cheapest flight deal to Washington, D.C. was found on the route from Toronto, at C$ 257 round-trip. The most popular connection is from Toronto to Washington, D.C., while KAYAK users have found round-trip deals for as low as C$ 257 in the last 5 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$ 593. The cheapest price found on KAYAK in the last 2 weeks cost C$ 153 and departed from Toronto Island Airport.

  • 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.

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$ 481, from Montreal Pierre Elliott Trudeau Intl C$ 527, from Ottawa C$ 911
  • 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.

 
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 458 reviews
8.6Crew
6.9Entertainment
8.2Boarding
8.0Comfort
7.6Food
Airline reviews

A very comfortable flight, an additional wash room could have made it almost perfect.

10.0 ExcellentAnonymous, Aug 2026
Read more Porter Airlines reviews

A very comfortable flight, an additional wash room could have made it almost perfect.

Look, I understand that Kayak doesn't know I cancelled my flight on Porter. So I didn't actually fly yesterday. My main disappointment is with Porter ticket fare policies, and maybe you can pass this on to them: At my employer's request, I had booked a full fare ticket with no change fees since my trip to Toronto would likely be extended. Indeed, when I went to change my flight home to a later date, I was told the Fare Difference would cost an additional $550. So much for no change fees lol! While I had the agent on the line, I hopped over to Kayak, searched for new flights on the date in question, and saw a one-way ticket that got me home for only $355. So I got reimbursed about $450for the unused half of my roundtrip and bought a new ticket for $355. What good is a full fare / no change fee ticket if they screw you with "fare difference" BS. I'm still flying home on Porter Airlines but they just lost a hundred bucks with their stupid shenanigans.

I flew with Porter yesterday and overall had a positive experience. The flight was delayed, but the airline did a good job keeping passengers informed with frequent updates throughout the process. My biggest challenge was actually in Terminal 3, where the speaker system wasn’t very clear. It was often difficult to hear the announcements, which made it harder to follow updates at the gate. On board, the experience improved significantly. The aircraft felt very new and well maintained, and the seats were surprisingly comfortable for a short-haul flight. One of the flight attendants seemed a little disengaged, but the other was excellent—friendly, professional, and a pleasure to interact with. Despite the delay, the comfortable aircraft, clear communication from Porter, and positive onboard service made for a good overall experience.

It was okay. Had a thing with the front desk, she had me repack my suitcases to have them be under the weight restrictions, but then the other one was overweight, she argued with me about it when there were tons of people in line. Wasn’t great.

Organization and the adjusted times but the snacks could be of a bigger portion

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.

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

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.

was okay except.. 1)the porter check in webpage doesn't let you print your boarding pass from home 2)that there was a 90 min cut off for checking in on the kiosk in general, and to print a boarding pass, even tho i checked in online already....

It was amazing although they did bump us up to the front which gave us more leg room and a meal. The service was great! The staff were friendly. :)

Flight was really good, with no middle section on an A321neo for an international flight, from Ottawa directly to London. Staff was friendly. The food was okay, and entertainment amenities could be better.

The flight was terrible based off the temperature in the plane and the air smelled so stale and gross. I have never wanted to hosed lore in my life after I got off. The food was disgusting and seemingly low quality. The staff was friendly. The bathrooms were so gross after a couple of hours. I will definitely never book with them again.

The crew was great. There was no entertainment and the internet wasn't working. We sat in the run way for a LONG time which is always so upsetting. The seats are very close together and the flights are completely full which makes for a tough flight. Flying is just an uncomfortable experience.

Very kind crew. Vegetarian food better than usual. Prompt take off. Entertainment worked well. Could always do with more room!

I liked the reliability. I liked less the chair comfort...

The dinner was bland and boring, but the economy seats were surprisingly comfortable. The flight was very packed.

I didn't have any problems during my flight. My main issue is with airlines in general, they keep offering less and less every year, AirTransat is no different.

We are a senior couple (70+) and chose emergency exit seats so we would have 2 seats together and neither of us had to sit in a middle seat. My husband is type 1 diabetic on an insulin pump and I monitor his blood sugar levels. I am 5'9" and 250 lbs and found the seats extremely uncomfortable. Toward the end of the flight I developed diarrhea which lasted a full 24 hours.

We were treated well by the staff at the airport and on board aircraft. Delay was uncontrollable due to the weather. Had to wait for another gate as we were late landing in Fort Lauderdale.

I did not like I have been charged for my carry on

Bad check in experience. Dirty ancient aircraft. Truly awful food and this in Business/ First class.

I truely appreciate all services. I was highly impressed and will not hesitate to recommend United Airlines to friends and family. The AVML was perfect.

Very kind Lufthansa agent somehow gave us all no charge extra business class seats and helped us get home rested and happy.

It was great. There were some issues prior to takeoff. The weather was poor so we had to go through deicing, and we were delayed a bit by the pilots' concern about one of the engines, but that's aviation. The pilots handled everything with aplomb, and kept us apprised

l really enjoy very much the flight was very pleasant

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

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

The flight was delayed, it took longer than anticipated because of weather, and they broke my luggage.

Airline staff was good the checkin process was ok but the plane itself was very bad the comfort was worst it was worst and the most stiff 5 hours of my life i felt claustrophobic

Brutal as can be … delayed by 24 hours then delayed and hour on the tarmac then delayed three hours in Chicago, screaming child behind me kicking the seat for the better part of 10 hours… couldn’t be worse

I'm so frustrated my flight was canceled they give flight on August 5 which is not sure. Its was big mistake I booked my ticket from kayak.

Maybe glass of wine would be nice at no charge

We traveled with a 7 year old that has autism and he is significantly cognitively delayed. Your site makes it known there are no wagons allowed even if they fold down flat and many autistic children cannot travel without one because they are unable to follow directions or cooperate with walking through the airport and are too big for a stroller. Please consider making exceptions for our special needs children. Also it would be very thoughtful if you’d allow seat selection for no fee for special needs families. The autistic child we traveled with must sit behind another adult in our family because he continuously kicks the seat in front of him and is unable to understand why that is disruptive. We had to pay quite a bit extra to have our 4 seats situated with 2 in row 19 and 2 in row 20 directly behind.

Our itinerary included a 1 hour and 30 minute layover, which should have been sufficient under normal circumstances. However, our original flight was delayed. Before we even deplaned, we were instructed to collect our checked bags from baggage claim, clear immigration and customs, and then recheck our bags for the connecting flight. The airline knew—or should have known—that this was impossible. Checked baggage acceptance closes one hour before departure, meaning there was no realistic way for passengers from the delayed flight to recheck their bags in time. Despite this, the airline gave us misleading instructions instead of informing us that we would likely miss our connection. We completed immigration and customs in approximately 10 minutes, but our checked bags did not arrive at the carousel for more than 30 minutes. After collecting them, we had another 10-minute walk to the baggage drop area, only to find that no airline attendant was present. We then went to another airline counter, where an employee told us this had happened before and that there was nothing they could do because the baggage acceptance window had already closed. At that point, there were still 40 minutes remaining before our flight's departure, yet no one was willing to assist or offer a practical solution. When we asked to be rebooked, we were simply told to call the airline's 800 number ourselves. There was no accountability or customer support at the airport, leaving us stranded in a foreign country with no immediate assistance. After finally reaching an agent on the 800 number, we were rebooked on a flight for the following day. However, we were initially told that the airline would not provide any hotel accommodation and that we would have to arrange and pay for it ourselves. Only after making multiple calls and speaking with several different agents did one representative finally issue a hotel voucher. The entire experience was an exhausting and frustrating ordeal. What should have been a 20-hour journey ultimately became more than 30 hours due to the airline's poor planning, misleading instructions, lack of accountability, and inadequate customer service. The unnecessary delays, confusion, and absence of meaningful assistance caused significant physical exhaustion and severe mental stress. This experience fell far below the level of service passengers should reasonably expect.

Despite travelling ultra basic for the first time due to such increased rates we both managed with one bag each. Even boarding last wasn’t SO bad.

I loved the fact it was on time and it was a smooth flight to my destination.

Service was okay except attendant over served alcohol to passenger and passenger got tipsy and made me uncomfortable

Could not make the flight. No one would help us at all

The agents at the Kelowna YLW airport were really grumpy. Same with oversized baggage person. Staff on the plane were great.

Flight was early. That’s the only positive I can share. I paid for wifi on the flight and it didn’t allow me to use any streaming services so it was a waste of $20. West Jet also lost my ski equipment on my way to a ski vacation. They told me it would be delivered to the hotel as soon as it arrived at the airport. It was never delivered. I had to pick it up at the airport on my way home. I am completely disgusted with my experience on west jet

The flight was good. My luggage didn’t land with me when I arrived in Columbus. So grateful I was able to get my luggage back within the 2 hours😍👍.

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

Pros: The airplane was new and had in-flight entertainment (tablet behind seats) with new movies instead of watching on personal devices. Cons: the flight time was changed without informing us. When I booked the flight, the time was 13:30pm (also in the email confirmation). However, when I reached the airport, the time was conveniently changed to 14:55pm. When I asked at the counter, they said the flight always took off at this time. The booking was made by Air Canada, but the flight was operated by United.

My flight got delayed 5 times and then got cancelled eventually, I had to get a hotel and uber and pay for food for an extra night without any plans. It was a horrible experience, instead of Air Canada, I was flying with United .

Super. Planes were clean. Flights were on time. boarding was smooth. Flight attendants were professional.

Flight was delayed by 45 min. No problems. Everyone took it in stride.

The Flight Attendant was particularly helpful to my wife, who was having a bad day.

We had no idea that you had to check in with United so we were waiting at a closed Air Canada window for about an hour before we found out we had to us United.

Boarding staff provided up-to-date flight information. They were professional and courteous. The flight was on-time and comfortable (adequate leg room). Early landing and orderly exited the aircraft. Ground baggage handlers were quick to offload carry-on bags. GREAT EXPERIENCE WITH HK EXPRESS

The flight had maintenance issues eventually resulting in cancelation. Additionally, the staff on the ground was not helpful to assist with rebooking the flights resulting in an overall unpleasant experience and we missed a family wedding due to the cancelation.

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

Book flights to Washington, D.C. if you plan to visit one of these locations
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Everything you need to know for your flight to Washington, D.C.