YTO - IAD

C$ 165 Find Cheap Flights from Toronto to Washington Dulles Airport – Compare and Save

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Everything you should know

Cheapest round-trip
C$ 248
Typical prices: C$ 304-C$ 548
Air Canada
Fri 7/12Sat 8/12
YTZ - IAD • Direct
Cheapest one-way flights
C$ 165
Typical prices: C$ 210-C$ 429
Porter Airlines
Mon 26/11
YTZ - IAD • Direct
Advice from real travellers
Porter’s no middle seats add comfort; United Economy Plus offers more legroom.
Air Canada Preferred Economy adds legroom; United Priority Boarding helps bin space.
Expert advice
+1
Expert advice
+1
Direct flights
You can fly direct with United Airlines, Air Canada, and Porter Airlines. Average duration is 1h 34m
Direct flights
+1
Direct flights
+1
Top routes
Cheapest • 15% average savings
Most popular
Insights
Insights
Avoid delays
Most punctual • 88% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 6 weeks in advance save around 49% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 11% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg C$ 403 (round-trip)
Shortest trip • 4h 41m (one-way)
Insights
Insights
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Washington, D.C. Dulles Intl Airport!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Toronto to Dulles Intl (YTO-IAD)

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

Recent round-trip flight deals from Toronto to Dulles Intl

Tue, 8 Dec - Wed, 9 Dec
Air Canada Logo
3:20 p.m. - 4:47 p.m.YTZ  Toronto Island-IAD Washington, D.C. Dulles Intl
1h 27mdirect
Air Canada Logo
5:20 p.m. - 6:57 p.m.IAD  Washington, D.C. Dulles Intl-YTZ Toronto Island
1h 37mdirect
C$ 248Air Canada
Mon, 7 Dec - Tue, 8 Dec
Air Canada Logo
3:20 p.m. - 4:47 p.m.YTZ  Toronto Island-IAD Washington, D.C. Dulles Intl
1h 27mdirect
Air Canada Logo
5:20 p.m. - 6:57 p.m.IAD  Washington, D.C. Dulles Intl-YTZ Toronto Island
1h 37mdirect
C$ 248Air Canada
Thu, 29 Oct - Sun, 1 Nov
Porter Airlines Logo
9:10 a.m. - 10:38 a.m.YTZ  Toronto Island-IAD Washington, D.C. Dulles Intl
1h 28mdirect
Porter Airlines Logo
6:25 p.m. - 7:59 p.m.IAD  Washington, D.C. Dulles Intl-YTZ Toronto Island
1h 34mdirect
C$ 250Porter Airlines
Tue, 29 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$ 250Porter Airlines
Thu, 29 Oct - Sun, 1 Nov
Multiple Airlines Logo
10:20 a.m. - 8:23 p.m.YTZ  Toronto Island-IAD Washington, D.C. Dulles Intl
10h 03m2 stops Ottawa Montreal Pierre Elliott Trudeau Intl
Multiple Airlines Logo
6:25 p.m. - 7:59 p.m.IAD  Washington, D.C. Dulles Intl-YTZ Toronto Island
1h 34mdirect
C$ 270Multiple Airlines
Thu, 29 Oct - Sun, 1 Nov
Multiple Airlines Logo
12:20 p.m. - 8:23 p.m.YTZ  Toronto Island-IAD Washington, D.C. Dulles Intl
8h 03m2 stops Ottawa Montreal Pierre Elliott Trudeau Intl
Multiple Airlines Logo
11:20 a.m. - 12:52 p.m.IAD  Washington, D.C. Dulles Intl-YTZ Toronto Island
1h 32mdirect
C$ 270Multiple Airlines
Tue, 6 Oct - Wed, 7 Oct
United Airlines Logo
5:15 p.m. - 10:52 p.m.YYZ  Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl
5h 37m1 stop Chicago O'Hare Intl
United Airlines Logo
8:28 a.m. - 10:04 a.m.IAD  Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl
1h 36mdirect
C$ 297United Airlines
Tue, 6 Oct - Wed, 7 Oct
United Airlines Logo
5:15 p.m. - 10:52 p.m.YYZ  Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl
5h 37m1 stop Chicago O'Hare Intl
United Airlines Logo
8:28 a.m. - 10:04 a.m.IAD  Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl
1h 36mdirect
C$ 298United Airlines
Thu, 29 Oct - Sun, 1 Nov
Air Transat Logo
9:10 a.m. - 10:38 a.m.YTZ  Toronto Island-IAD Washington, D.C. Dulles Intl
1h 28mdirect
Air Transat Logo
6:25 p.m. - 7:59 p.m.IAD  Washington, D.C. Dulles Intl-YTZ Toronto Island
1h 34mdirect
C$ 313Air Transat
Fri, 25 Sep - Mon, 28 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$ 334Air Transat
Booking Insights

Price, demand, and travel trends for Toronto to Washington, D.C. Dulles Intl Airport flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Toronto to Washington, D.C. Dulles Intl Airport with more confidence.

How much is a round-trip flight from Toronto to Washington, D.C. Dulles Intl Airport?

Round-trip flights from Toronto to Washington, D.C. Dulles Intl Airport start at C$ 248. Prices are below average for this route right now, with typical round-trip fares ranging from C$ 304 to C$ 548. The lowest price found in the past 5 days was C$ 248 on Air Canada.

What is the cheapest Toronto to Washington, D.C. Dulles Intl Airport flight route?

Toronto Island Airport (YTZ) to Washington, D.C. Dulles Intl Airport (IAD) is the cheapest Toronto to Washington, D.C. Dulles Intl Airport route, averaging C$ 330 round-trip. Other Toronto to Washington, D.C. Dulles Intl Airport routes average C$ 443, based on KAYAK data over the past 12 months.

What's the cheapest day of the week to fly from Toronto to Washington, D.C. Dulles Intl Airport?

Wednesday is the cheapest day of the week to fly from Toronto to Washington, D.C. Dulles Intl Airport and is 1% cheaper than the average day. Sunday is the most expensive day with flight prices 33% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • November is the cheapest month to fly from Toronto to Washington, D.C. Dulles Intl Airport at C$ 347 round-trip.
  • December (C$ 437) and May (C$ 423) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 26% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Toronto to Washington, D.C. Dulles Intl Airport the cheapest?

Flights from Toronto to Washington, D.C. Dulles Intl Airport are cheapest 6 weeks before departure. Booking in this window typically costs about 49% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Toronto to Dulles Intl

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

John Walton

Expert on Porter Airlines

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.

Stefanie Waldek

Stefanie Waldek

Expert on Air Canada, United Airlines 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.

Mark Stachiew

Mark Stachiew

Expert on YYZ

Mark Stachiew has been exploring the world and writing about it for more than 30 years. His travel stories have appeared in numerous newspapers, magazines and online publications in Canada, the United States and beyond.

Jennifer Bain

Jennifer Bain

Expert on YTZ

Jennifer Bain is a Canadian travel writer who takes at least 50 flights a year and has proudly visited all 13 of Canada's provinces and territories. She is a former newspaper travel editor who has written three travel books. Jennifer is the Canada editor for U.S.-based National Parks Traveler and freelances for numerous other outlets.

Key details for Toronto to Washington, D.C. Dulles Intl Airport flights

Low season

February

Cheapest flight

C$ 165
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly and prices are also 11% lower on average.
Flights from Toronto Island Airport to Washington, D.C. Dulles Intl Airport

When to book flights from Toronto to Dulles Intl

Are your dates flexible? Find out the best times to travel from Toronto to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Flights from Toronto to Dulles Intl: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from Toronto to Dulles Intl 
KaseyFlew with Air Canada-Jun 2025
Come way early as US customs line up eats up your time
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
Verified travelerFlew with Air Canada-Aug 2024
Check the departure board carefully when you get to the airport.

Your Toronto to Washington, D.C. Dulles Intl Airport flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • How many terminals does IAD have?

    IAD features one main terminal with four airside concourses parallel to the terminal. The terminal is split across two levels, with departures on the upper level and arrivals on the lower level. You can get between the concourses via a pedestrian walkway. You can also take the AeroTrain, an automated rail service that runs underground between the terminal and the concourses within the secure area. You can also take the people movers from the main terminal, Concourse D and A.

  • What services does IAD offer for reduced mobility travelers?

    IAD features elevators equipped with raised Braille buttons and are accessible to individuals who use wheelchairs. IAD features AeroTrain C Station elevators on the center platform for more straightforward navigation. All Airport shuttle buses feature ramps and audible announcements. In addition, IAD features a pet relief area for service animals alongside a designated parking spot for reduced mobility drivers.

  • How do I get from IAD to downtown?

    The Silver Line Express provides bus service between IAD and the Wiehle-Reston East Metrorail Station. Buses run every 15 minutes. Also, SuperShuttle and Supreme Airport Shuttle offer 24-hour shared transfer service from the airport to your destination of choice. Alternatively, you can get car rentals and drive to your preferred destination. You can also get on shared-ride vans and taxis outside the terminal.

  • What flights are available from Billy Bishop Toronto City Airport (YTZ) to Washington Dulles International Airport (IAD)?

    Porter Airlines provide direct flights from YTZ to IAD. Air Canada offers one-stop flights from YTZ to IAD with a layover in Montreal. Air Canada and United Airlines provide tow-stop flights on the route. They have layovers in Newark, Ottawa, Montreal, and New York.

  • Which airlines offer extra legroom and free seat selection on Toronto to Washington, D.C. Dulles Intl Airport flights?

    Among airlines operating Toronto to Washington, D.C. Dulles Intl Airport flights:

    • Air Canada: offers extra legroom; offers free seat selection
    • Porter Airlines: offers free seat selection
    • United Airlines: offers extra legroom; offers free seat selection
    • Air Transat: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines are available on the route from Toronto to Washington, D.C. Dulles Intl Airport?

    3 airlines operate flights between Toronto and Washington, D.C. Dulles Intl Airport. The airlines offering direct flights on this route include:

    • United Airlines
    • Air Canada
    • Porter Airlines

  • Which airports can I use when flying from Toronto to Washington, D.C. Dulles Intl Airport?

    Flights from Toronto to Washington, D.C. Dulles Intl Airport may depart from several airports in Toronto area, including Toronto Region of Waterloo Intl (YKF), Toronto Island (YTZ) and Toronto Pearson Intl (YYZ). Flights usually arrive at Washington, D.C. Dulles Intl (IAD).

  • Which airlines include bags at no extra cost on Toronto to Washington, D.C. Dulles Intl Airport flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Air Canada: a carry-on bag and a checked bag in Economy Class
    • Porter Airlines: a carry-on bag and a checked bag in Economy Class
    • United Airlines: a carry-on bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route, and airline, so travellers should check the fare details before booking.

  • Which cabin classes can I book on flights from Toronto to Washington, D.C. Dulles Intl Airport?

    Three cabin classes are available on flights from Toronto to Washington, D.C. Dulles Intl Airport:

    • Economy Class
    • Business Class
    • First Class

  • How much can I save by taking a layover when flying from Toronto to Washington, D.C. Dulles Intl Airport?

    On this route, direct and layover fares are close on average, with direct at C$ 388 round-trip and layover options via Montreal Pierre Elliott Trudeau Intl (YUL) at C$ 403.

  • What is the standard checked bag allowance on flights from Toronto to Washington, D.C. Dulles Intl Airport?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge C$ 34–C$ 139 for the first checked bag in economy. Premium fares and elite status bookings typically include a free checked bag.

  • Which airports do connecting flights from Toronto to Washington, D.C. Dulles Intl Airport pass through?

    One-stop flights from Toronto to Washington, D.C. Dulles Intl Airport most commonly connect through:

    • Detroit Metropolitan Wayne County (DTW) – 43% of one-stop connections
    • Montreal Pierre Elliott Trudeau Intl (YUL) – 19% of one-stop connections
    • Orlando (MCO) – 10% of one-stop connections
    • Ottawa (YOW) – 10% of one-stop connections

    Detroit Metropolitan Wayne County (DTW) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Toronto to Washington, D.C. Dulles Intl Airport?

    Yes. Being flexible with your travel dates can save you up to 26% on the Toronto to Washington, D.C. Dulles Intl Airport route. Wednesday is the cheapest departure day at C$ 388 round-trip on average, while Sunday is the most expensive at C$ 522, a difference of C$ 133. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • At what point is a flight considered delayed on the route from Toronto to Washington, D.C. Dulles Intl Airport?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Toronto to Washington, D.C. Dulles Intl Airport route, 17% of flights were delayed in the past 3 months, with delays averaging 1 hour 49 minutes.

  • How are flight departures from Toronto to Washington, D.C. Dulles Intl Airport spread across the day?

    Afternoon is the busiest departure period on Toronto to Washington, D.C. Dulles Intl Airport flights, with 50% leaving in that window. Morning departures account for 25%, Evening flights for 25%, and Night flights for 0%.

  • Which popular places can I visit in Washington, D.C. Dulles Intl Airport?

    Some of the most popular sights in Washington, D.C. Dulles Intl Airport are Capital One Arena, National Mall, and Kennedy Center. These are among the most viewed places in Washington, D.C. Dulles Intl Airport on KAYAK.

  • What are the earliest and latest flights from Toronto to Washington, D.C. Dulles Intl Airport?

    These are the earliest and latest flight times available from Toronto to Washington, D.C. Dulles Intl Airport:

    • Earliest: departs at 9:10 am and lands at 10:44 am
    • Latest: departs at 7:44 pm and lands at 9:18 pm.

    The flight takes about 1h 34m.

  • How expensive are last-minute Toronto to Washington, D.C. Dulles Intl Airport flights?

    Last-minute fares on this route – booked within 2 weeks of departure – run 63% above the route average of C$ 390. Book 6 weeks before departure for the lowest fares.

  • How long does a flight from Toronto to Washington, D.C. Dulles Intl Airport take?

    A direct flight from Toronto to Washington, D.C. Dulles Intl Airport takes 1h 34m, covering 880 km.

  • Do I need a passport to fly from Toronto to Washington, D.C. Dulles Intl Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How are flight prices from Toronto to Washington, D.C. Dulles Intl Airport looking right now?

    One-way fares from Toronto to Washington, D.C. Dulles Intl Airport are currently lower than usual. Average one-way flight prices are about C$ 191, which is 34% below the typical average for this route.

  • How does United Airlines's on-time performance compare to other airlines on Toronto to Washington, D.C. Dulles Intl Airport flights?

    United Airlines is slightly above the route average for timely arrivals, while Air Canada has a lower on-time arrival rate. On-time arrival rates on Toronto to Washington, D.C. Dulles Intl Airport flights are:

    • United Airlines: 88% on time
    • Air Canada: 75% on time
    • Delta: 54% on time

    On average, flights on this route are punctual 83% of the time.

  • How do delay rates compare for morning and evening flights from Toronto to Washington, D.C. Dulles Intl Airport?

    Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

  • How much time can I save by choosing a different layover airport when travelling from Toronto to Washington, D.C. Dulles Intl Airport?

    Flying via Toronto Pearson Intl (YYZ) gives the shortest average 1-stop total travel time at 4h 41m, compared with 4h 45m via Ottawa (YOW) and 4h 56m via Detroit Metropolitan Wayne County (DTW).

  • What car rental options are available at Washington, D.C. Dulles Intl Airport (IAD)?

    Washington, D.C. Dulles Intl Airport (IAD) hosts 5 major car rental companies, with daily rates starting from around C$ 33 for economy cars. Top options include:
    • Dollar
    • Budget
    • Hertz
    • Sixt
    • Thrifty

  • How much should I expect to pay for a Toronto to Washington, D.C. Dulles Intl Airport flight?

    Round-trip flights from Toronto to Washington, D.C. Dulles Intl Airport range from C$ 304 to C$ 548, with an average of C$ 390 over the past 12 months. Anything below C$ 304 counts as a good deal.

  • Which airlines offer Wi-Fi on Toronto to Washington, D.C. Dulles Intl Airport flights?

    Two airlines offer in-flight Wi-Fi on Toronto to Washington, D.C. Dulles Intl Airport flights:

    • • Air Canada
    • • United Airlines

    Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

Your guide to booking Toronto to Washington, D.C. Dulles Intl Airport flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure instead of Sunday. On this route, Wednesday flights average C$ 388 – about C$ 133 less than Sunday (26% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 6 weeks before you fly. On this route, that window historically saves about 49% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Toronto to Washington, D.C. Dulles Intl Airport trip for November. Fares historically average C$ 347 round-trip in that month – typically C$ 90 less than the most expensive month, which is December (based on the last 12 months).
  • If arriving on time is high on your priority list, United Airlines is the strongest pick on this route. 88% of United Airlines flights from Toronto to Washington, D.C. Dulles Intl Airport arrived on time in the past 3 months, slightly above the route's average on-time arrival rate of 83%. When flights on this route do arrive late, the average delay is 1 hour49 minutes, so choosing a carrier with strong on-time performance can make a difference on tight schedules.
  • Several options provide transfers to Toronto Pearson International Airport (YYZ). You can get a Go Train or head to the city’s subway stations to get rides to the airport. You can also drive to the airport and take advantage of the parking options at the facility. Alternatively, you can take a taxi from the city to the airport.
  • YYZ features two terminals, including Terminals 1 and 3. Both terminals are big so consider taking the inter-terminal LINK train between them. They run every 4-8 minutes, and you can find them at Terminal 3, Terminal 1, Viscount Station, and Value Park Garage.
  • You can freshen up before your flight from YYZ. The airport showers are in the Plaza Premium Lounges, Level 1 of Terminal 1 landside in Area F, and the Wellbeing Spa on the Airside of Terminal 3, near Gate A10. You can also find showers at Sheraton Gateway on the landside of Terminal 3.
  • Before your flight, you can also get some entertaining activities in YYZ. Terminal 1 features large sculptures on the airside, a changing art display, and a dinosaur display on the landside. Terminal 3 features a film exhibition created by the Toronto International Film Festival.
  • When travelling with family members, Dulles International Airport (IAD) features a children’s play area. It features an area with airplane-themed elements to climb and slide on, an interactive game system with over 100 games, and seating areas for parents. You can find it on the Airside near Gate B70.

Prefer to fly direct from Toronto to Washington Dulles Airport?

 
Find which airlines fly direct from Toronto to Washington, D.C. Dulles Intl Airport, which days they fly and book direct flights.

Direct departures

Toronto to Washington, D.C. Dulles Intl

Monday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

Tuesday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

Wednesday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

Thursday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

Friday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

Saturday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

Sunday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

See more nonstop flights

Direct returns

Washington, D.C. Dulles Intl to Toronto

Monday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

Tuesday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

Wednesday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

Thursday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

Friday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

Saturday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

Sunday

Air Canada,Porter Airlines,United Airlines

Air Canada,Porter Airlines, +1 more

See more nonstop flights

More options for your flight from Toronto to Dulles Intl

Complete your trip to Washington, D.C. with a hotel stay or car rental