YTO - IAD

C$ 171 Find Cheap Flights from Toronto to Washington Dulles Airport – Compare and Save

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Everything you should know

Cheapest round-trip
C$ 262
Typical prices: C$ 316-C$ 544
United Airlines
Tue 6/3Wed 7/3
YYZ - IAD • 1 stop
Cheapest direct flights
C$ 262
Typical prices: C$ 315-C$ 545
Porter Airlines
Sun 18/11Tue 20/11
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 37m
Direct flights
+1
Direct flights
+1
Top routes
Cheapest • 12% 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 46% 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$ 413 (round-trip)
Shortest trip • 4h 50m (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

Sat, 6 Mar - Sun, 7 Mar
United Airlines Logo
5:55 p.m. - 12:19 a.m.YYZ  Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl
6h 24m1 stop Chicago O'Hare Intl
United Airlines Logo
12:40 p.m. - 2:11 p.m.IAD  Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl
1h 31mdirect
C$ 262United Airlines
Fri, 6 Nov - Mon, 9 Nov
United Airlines Logo
8:35 a.m. - 4:33 p.m.YYZ  Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl
7h 58m1 stop Chicago O'Hare Intl
United Airlines Logo
10:10 p.m. - 11:52 p.m.IAD  Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl
1h 42mdirect
C$ 262United Airlines
Wed, 18 Nov - Fri, 20 Nov
Porter Airlines Logo
9:10 a.m. - 10:39 a.m.YTZ  Toronto Island-IAD Washington, D.C. Dulles Intl
1h 29mdirect
Porter Airlines Logo
11:20 a.m. - 12:50 p.m.IAD  Washington, D.C. Dulles Intl-YTZ Toronto Island
1h 30mdirect
C$ 262Porter Airlines
Mon, 16 Nov - Fri, 20 Nov
Porter Airlines Logo
4:15 p.m. - 5:44 p.m.YTZ  Toronto Island-IAD Washington, D.C. Dulles Intl
1h 29mdirect
Porter Airlines Logo
11:20 a.m. - 12:50 p.m.IAD  Washington, D.C. Dulles Intl-YTZ Toronto Island
1h 30mdirect
C$ 262Porter Airlines
Fri, 4 Dec - Fri, 4 Dec
Air Transat Logo
9:10 a.m. - 10:40 a.m.YTZ  Toronto Island-IAD Washington, D.C. Dulles Intl
1h 30mdirect
Air Transat Logo
6:25 p.m. - 7:55 p.m.IAD  Washington, D.C. Dulles Intl-YTZ Toronto Island
1h 30mdirect
C$ 262Air Transat
Thu, 18 Feb - Sun, 21 Feb
Air Canada Logo
6:40 p.m. - 8:10 p.m.YYZ  Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl
1h 30mdirect
Air Canada Logo
9:55 a.m. - 11:22 a.m.IAD  Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl
1h 27mdirect
C$ 263Air Canada
Thu, 19 Nov - Thu, 26 Nov
Air Canada Logo
2:15 p.m. - 3:45 p.m.YYZ  Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl
1h 30mdirect
Air Canada Logo
4:30 p.m. - 5:57 p.m.IAD  Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl
1h 27mdirect
C$ 263Air Canada
Tue, 10 Nov - Fri, 13 Nov
Air Transat Logo
9:10 a.m. - 10:39 a.m.YTZ  Toronto Island-IAD Washington, D.C. Dulles Intl
1h 29mdirect
Air Transat Logo
6:25 p.m. - 7:55 p.m.IAD  Washington, D.C. Dulles Intl-YTZ Toronto Island
1h 30mdirect
C$ 263Air Transat
Sat, 7 Nov - Tue, 10 Nov
Multiple Airlines Logo
7:44 p.m. - 9:26 p.m.YYZ  Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl
1h 42mdirect
Multiple Airlines Logo
9:55 a.m. - 4:46 p.m.IAD  Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl
6h 51m1 stop Montreal Pierre Elliott Trudeau Intl
C$ 263Multiple Airlines
Wed, 11 Nov - Sat, 14 Nov
Multiple Airlines Logo
7:44 p.m. - 9:26 p.m.YYZ  Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl
1h 42mdirect
Multiple Airlines Logo
9:55 a.m. - 4:46 p.m.IAD  Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl
6h 51m1 stop Montreal Pierre Elliott Trudeau Intl
C$ 263Multiple Airlines
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 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 typically range from C$ 316 to C$ 544. The lowest price found in the past 5 days was C$ 262, on United Airlines.

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$ 348 round-trip. Other Toronto to Washington, D.C. Dulles Intl Airport routes average C$ 445, 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?

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Toronto to Washington, D.C. Dulles Intl Airport. It's 2% cheaper than the average day, while Sunday is the most expensive, with prices 31% higher.

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

•January is the cheapest month to fly from Toronto to Washington, D.C. Dulles Intl Airport at C$ 356 round-trip.
•December (C$ 437) and May (C$ 429) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 22% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights 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 46% 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$ 171
Beat the crowds with an average 44% drop in traveller numbers.
The most popular month to fly with an average 28% increase in traveller numbers.
One-way flight 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 answers about this route, including flight times, airports, airlines, and booking tips.

  • 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 9:05 am and lands at 10:42 am
    • Latest: departs at 7:44 pm and lands at 9:21 pm.

    The flight takes about 1h 37m.

  • 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 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 37m, 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 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$ 316 to C$ 544, with an average of C$ 400 over the past 12 months. Anything below C$ 316 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 51% above the C$ 400 route average. Book 6 weeks before departure for the lowest fares.

  • 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$ 400 round-trip and layover options via Toronto Pearson Intl (YYZ) at C$ 413.

  • How does on-time performance compare across airlines flying from Toronto to Washington, D.C. Dulles Intl Airport?

    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.

  • 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$ 30–C$ 140 for the first checked bag in economy. Premium fares and elite status bookings typically include a free checked bag.

  • 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 43% leaving in that window. Morning departures account for 29%, Evening flights for 28%, and Night flights for 0%.

  • 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.

  • 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$ 180, which is 39% below the typical average for this route.

  • 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
    • Hertz
    • Budget
    • Sixt
    • Thrifty

  • 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).

  • What time of day has the fewest delays on flights from Toronto to Washington, D.C. Dulles Intl Airport?

    Morning flights have the fewest delays on this route, while evening departures tend to have the most.

  • 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 three months, with delays averaging 1h 49m.

  • 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) – 62% of one-stop connections
    • Ottawa (YOW) – 12% of one-stop connections
    • Montreal Pierre Elliott Trudeau Intl (YUL) – 12% of one-stop connections
    • Toronto Pearson Intl (YYZ) – 8% of one-stop connections

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

    Yes. Flexible dates can save you up to 25% on flights from Toronto to Washington, D.C. Dulles Intl Airport. Wednesday is the cheapest departure day at C$ 396 round-trip on average, while Sunday is the most expensive at C$ 527, a difference of C$ 130.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • Which airlines fly 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

  • 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 50m via Ottawa (YOW) and 5h 05m via Detroit Metropolitan Wayne County (DTW).

  • 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.

  • 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:

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

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

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

  • 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.

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 and avoid flying on Sunday. On this route, Wednesday flights average C$ 396, about C$ 130 less than Sunday fares (25% 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 46% 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 January. Fares historically average C$ 356 round-trip in that month – typically C$ 81 less than the most expensive month, which is December (based on the last 12 months).
  • For the best chance of arriving on time, fly with United Airlines. Over the past three months, 88% of United Airlines flights from Toronto to Washington, D.C. Dulles Intl Airport arrived on time, slightly above the route average of 83%. When flights on this route arrive late, they're delayed by an average of 1h 49m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • 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