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Cheap flights from Washington, D.C. Dulles Intl Airport to Toronto from C$ 140

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/1. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YTO
14 Jan — 21 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Toronto are usually found in June or February, booked 79 days in advance, depart on a Monday or Thursday and return on a Friday

Cheap flight deals from Dulles Intl to Toronto

Enter your travel dates to find the best prices.

Cheapest flights from Dulles Intl to Toronto
Explore the most affordable flight options available from Dulles Intl to Toronto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 December 2025.

Wed 31/1211:40 a.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Wed 14/18:50 a.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 12/12C$ 319
Tue 30/126:30 p.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Mon 5/18:50 a.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 14/12C$ 325
Sat 27/1211:40 a.m.IAD - YTZ
Nonstop1h 30mMultiple Airlines
Sat 17/17:00 a.m.YTZ - IAD
2 stops13h 18mMultiple Airlines
Deal found 13/12C$ 348
Sat 27/1211:40 a.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Tue 30/128:55 a.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 13/12C$ 380
Sat 27/126:30 p.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Wed 31/128:55 a.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 13/12C$ 383
Tue 30/126:30 p.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Wed 31/128:55 a.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 14/12C$ 384
Wed 31/129:00 a.m.IAD - YYZ
Nonstop1h 29mAir Canada
Wed 14/12:15 p.m.YYZ - IAD
Nonstop1h 31mAir Canada
Deal found 12/12C$ 394
Sat 27/126:30 p.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Mon 29/128:55 a.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 13/12C$ 427
Wed 31/129:45 a.m.IAD - YTZ
1 stop5h 10mAir Canada
Wed 7/18:30 a.m.YTZ - IAD
1 stop12h 24mAir Canada
Deal found 13/12C$ 450
Tue 30/129:00 a.m.IAD - YYZ
Nonstop1h 29mAir Canada
Tue 6/16:55 p.m.YYZ - IAD
Nonstop1h 31mAir Canada
Deal found 12/12C$ 460
Wed 31/129:00 a.m.IAD - YYZ
Nonstop1h 29mAir Canada
Wed 7/16:55 p.m.YYZ - IAD
Nonstop1h 31mAir Canada
Deal found 13/12C$ 489
Wed 31/129:00 a.m.IAD - YYZ
Nonstop1h 29mAir Canada
Mon 5/16:55 p.m.YYZ - IAD
Nonstop1h 34mAir Canada
Deal found 13/12C$ 493

Find flight deals from Dulles Intl to Toronto

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Toronto (YTO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 15 December 2025.

Round-trip from

C$ 295

One-way from

C$ 140

Popular in

December

Cheapest in

June

Average price

C$ 496

Good round-trip deal

C$ 343 or less

Good one-way deal

C$ 173 or less
Porter Airlines
  • Porter Airlines
  • 29/1-1/2
  • Nonstop
  • 3h 06m total
  • Washington, D.C. to Toronto
Search Deals
Air Canada
  • Air Canada
  • 19/1
  • Nonstop
  • 1h 29m total
  • Washington, D.C. to Toronto
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 71 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Toronto (YTO).
Search Deals
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Toronto (YTO).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Toronto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 15 December 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Toronto that are best for you.

Fly from

Dulles Intl

Fly to

Toronto

Route

Depart

Return

Price

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Fri 30/1

11:35 a.m.-1:09 p.m.

Nonstop1h 34m

Toronto Island

Sun 1/2

8:50 a.m.-10:22 a.m.

Nonstop1h 32m

C$ 295

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sun 4/1

6:30 p.m.-8:00 p.m.

Nonstop1h 30m

Toronto Island

Thu 8/1

8:50 a.m.-10:19 a.m.

Nonstop1h 29m

C$ 296

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Wed 11/2

11:40 a.m.-1:10 p.m.

Nonstop1h 30m

Toronto Island

Mon 16/2

3:45 p.m.-5:14 p.m.

Nonstop1h 29m

C$ 296

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Wed 7/1

11:35 a.m.-1:09 p.m.

Nonstop1h 34m

Toronto Island

Wed 14/1

8:50 a.m.-10:19 a.m.

Nonstop1h 29m

C$ 296

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sun 4/1

6:30 p.m.-8:00 p.m.

Nonstop1h 30m

Toronto Island

Mon 5/1

8:50 a.m.-10:19 a.m.

Nonstop1h 29m

C$ 296

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Wed 14/1

11:35 a.m.-1:09 p.m.

Nonstop1h 34m

Toronto Island

Mon 19/1

8:50 a.m.-10:19 a.m.

Nonstop1h 29m

C$ 299

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Wed 7/1

11:35 a.m.-1:09 p.m.

Nonstop1h 34m

Toronto Island

Thu 8/1

8:50 a.m.-10:19 a.m.

Nonstop1h 29m

C$ 302

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Wed 28/1

11:35 a.m.-1:09 p.m.

Nonstop1h 34m

Toronto Island

Wed 4/2

8:50 a.m.-10:22 a.m.

Nonstop1h 32m

C$ 304

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 22/1

11:35 a.m.-1:09 p.m.

Nonstop1h 34m

Toronto Island

Sun 25/1

8:50 a.m.-10:19 a.m.

Nonstop1h 29m

C$ 306

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 26/3

11:40 a.m.-1:10 p.m.

Nonstop1h 30m

Toronto Island

Sun 29/3

3:45 p.m.-5:14 p.m.

Nonstop1h 29m

C$ 307

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/12

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Best time to book a flight from Dulles Intl to Toronto

Have a flexible travel schedule? Discover the best time to fly to Toronto from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Toronto

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Toronto?

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Toronto. Price data was last updated on 12 December 2025.

The best time to book flights from Washington, D.C. Dulles Intl Airport to Toronto is 79 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Toronto (average of C$ 129). Flying from Washington, D.C. Dulles Intl Airport to Toronto in August is currently the most expensive (average of C$ 235). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IAD to YTO?

Find hourly flight availability from Dulles Intl to Toronto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 December 2025.

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Dulles Intl Airport to Toronto in the afternoon. If you’re flexible enough to do this you can expect to save up to 34% on your trip compared to booking a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Toronto. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Toronto flight should consider departing on Sunday evenings when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Washington, D.C. Dulles Intl Airport to Toronto

Explore weekly flight availability from Dulles Intl to Toronto. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 15 December 2025.

The most flights from IAD to YTO are scheduled on a Monday (20 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (12 on average).

How often are flights from Washington, D.C. to Toronto delayed?

About 12% of weekly flights between Washington, D.C. and Toronto have experienced delays in the past year, with the average delay time being 124 minutes.

What is the most punctual flight time for Washington, D.C. to Toronto flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Washington, D.C. to Toronto flights?

Over the past year, United Airlines has had the lowest number of delays on this route, with just 11% of flights being delayed.

Reviews of airlines servicing Toronto

Get insights into the airlines that provide service to Toronto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Toronto. Reviews last updated 15 December 2025.
Read reviews from past customers who have flown Porter Airlines and Air Canada from Washington, D.C. Dulles Intl Airport to Toronto. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
399 reviews
Check prices

Crew

8.6

Entertainment

7.0

Boarding

8.2

Food

7.6

Overall

8.0

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Porter Airlines
8.0
Very good
399 reviews
Porter Airlines
8.0
Very good
399 reviews
Check prices

Crew

8.6

Entertainment

7.0

Boarding

8.2

Food

7.6

Overall

8.0

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air Canada
7.1
Good
10,525 reviews
Porter Airlines
8.0
Very good
399 reviews
Check prices

Crew

8.6

Entertainment

7.0

Boarding

8.2

Food

7.6

Overall

8.0

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Toronto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Toronto?

    For as low as C$ 295, Porter Airlines can have you in Toronto from Washington, D.C. Dulles Intl Airport in 1h 34m. The distance between Washington, D.C. Dulles Intl Airport and Toronto is about 546 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Toronto round-trip?

    Cheapflights users have booked flights from Washington, D.C. Dulles Intl Airport to Toronto round-trip from C$ 156. Other airlines that can offer you cheap pricing are Air Canada, from C$ 161, and Porter Airlines, from C$ 240. These flights start at 59% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Toronto one-way?

    To fly one-way, consider booking your trip with Porter Airlines, which is currently one of the cheapest options available, starting at C$ 96. Air Canada flights start at C$ 129 while deals on United Airlines start at C$ 148 one-way.

  • What are the most popular routes from Washington, D.C. Dulles Intl Airport to Toronto?

    Most travellers choose Washington, D.C. Dulles Intl - Toronto Pearson Intl, Washington, D.C. Dulles Intl - Toronto Island or Washington, D.C. Dulles Intl - Hamilton when deciding on the best route from Washington, D.C. Dulles Intl Airport to Toronto.

  • What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Toronto?

    No one likes to see their flight delayed. When booking a flight from Washington, D.C. Dulles Intl Airport to Toronto consider choosing Jazz (85%), United Airlines (79%) or Air Canada (79%) as they are the most reliable in getting you off to your destination on time.

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

    While on average a flight from Washington, D.C. Dulles Intl Airport to Toronto is generally C$ 443, our data shows the cheapest flight currently is C$ 210. When looking at the most popular route, (Washington, D.C. Dulles Intl - Toronto Pearson Intl), you can expect to pay C$ 354 for that flight.

  • Can I find deals for flights from Dulles Intl to Toronto that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Toronto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Toronto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Toronto.

  • Can I find deals for business class flights from Dulles Intl to Toronto?

    Yes. Cheapflights offers flight deals from Dulles Intl to Toronto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Toronto?

    Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Toronto (average of C$ 129). Flying from Washington, D.C. Dulles Intl Airport to Toronto in August is currently the most expensive (average of C$ 235). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Dulles Intl to Toronto

Discover the top 3 airlines that operate flights from Dulles Intl to Toronto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 15 December 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 182AverageC$ 507FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Porter AirlinesCheapestC$ 243AverageC$ 418FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 290AverageC$ 483FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Dulles Intl to Toronto?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Dulles Intl to Toronto. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Dulles Intl to Toronto?

Cheapflights simply makes it quick and affordable to book flights from Dulles Intl to Toronto by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Dulles Intl to Toronto with no change fees?

Certainly. Search results for flights to Toronto from Dulles Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Dulles Intl to Toronto become cheaper?

Of course! You can now track prices for flights from Dulles Intl to Toronto and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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