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Cheap flights from Washington, D.C. Dulles Intl Airport to Toronto from C$ 106

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 14/9. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YTO
3 ago. — 10 ago.1
1 adult

Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Toronto are usually found in June or February, booked 83 days in advance, depart on a Monday or Wednesday and return on a Friday

Cheap 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 29 julio 2025.

Round-trip from

C$ 266

One-way from

C$ 106

Popular in

November

Cheapest in

June

Average price

C$ 384

Good round-trip deal

C$ 354 or less

Good one-way deal

C$ 97 or less
Porter Airlines
  • Porter Airlines
  • 30/8-31/8
  • Nonstop
  • 3h 04m total
  • Washington, D.C. to Toronto
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Porter Airlines
  • Porter Airlines
  • 14/9
  • Nonstop
  • 1h 33m total
  • Washington, D.C. to Toronto
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 44 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease (C$ 9 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Toronto (YTO).
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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Toronto (YTO).
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Find flight deals from Dulles Intl to Toronto

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 29 julio 2025.

jue. 25/94:20 p.m.IAD - YTZ
Nonstop1h 33mPorter Airlines
sáb. 27/91:35 p.m.YTZ - IAD
Nonstop1h 31mPorter Airlines
Deal found 29/7C$ 247
mar. 19/89:35 a.m.IAD - YYZ
1 stop5h 00mAir Canada
mar. 26/84:30 p.m.YYZ - IAD
1 stop4h 31mAir Canada
Deal found 28/7C$ 285
mié. 3/94:20 p.m.IAD - YTZ
Nonstop1h 33mMultiple Airlines
lun. 8/98:45 a.m.YTZ - IAD
Nonstop1h 31mMultiple Airlines
Deal found 26/7C$ 305
mar. 19/89:35 a.m.IAD - YTZ
1 stop5h 11mAir Canada
mar. 26/83:25 p.m.YTZ - IAD
1 stop5h 36mAir Canada
Deal found 28/7C$ 313
jue. 11/96:20 a.m.IAD - YYZ
1 stop5h 24mUnited Airlines
jue. 18/912:45 p.m.YYZ - IAD
Nonstop1h 40mUnited Airlines
Deal found 27/7C$ 339
lun. 18/85:11 p.m.IAD - YYZ
1 stop5h 47mDelta
mié. 20/84:11 p.m.YYZ - IAD
1 stop6h 44mDelta
Deal found 27/7C$ 370
jue. 4/93:41 p.m.IAD - YYZ
Nonstop1h 38mMultiple Airlines
dom. 7/98:10 a.m.YYZ - IAD
Nonstop1h 28mMultiple Airlines
Deal found 26/7C$ 380
vie. 5/96:45 p.m.IAD - YHM
1 stop29h 55mWestJet
lun. 8/96:00 a.m.YHM - IAD
1 stop11h 50mWestJet
Deal found 28/7C$ 483
vie. 19/96:45 p.m.IAD - YHM
2 stops29h 03mMultiple Airlines
dom. 21/92:55 p.m.YHM - IAD
2 stops26h 55mMultiple Airlines
Deal found 28/7C$ 982

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 29 julio 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

sáb. 30/8

4:10 p.m.-5:43 p.m.

Nonstop1h 33m

Toronto Island

dom. 31/8

9:05 a.m.-10:36 a.m.

Nonstop1h 31m

C$ 266

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

mar. 19/8

9:35 a.m.-2:35 p.m.

1 stop5h 00m

Toronto Pearson Intl

mar. 26/8

4:30 p.m.-9:01 p.m.

1 stop4h 31m

C$ 285

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

mié. 3/9

4:20 p.m.-5:53 p.m.

Nonstop1h 33m

Toronto Island

lun. 8/9

8:45 a.m.-10:16 a.m.

Nonstop1h 31m

C$ 305

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

mar. 19/8

9:35 a.m.-2:46 p.m.

1 stop5h 11m

Toronto Island

mar. 26/8

3:25 p.m.-9:01 p.m.

1 stop5h 36m

C$ 313

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

sáb. 30/8

4:10 p.m.-5:43 p.m.

Nonstop1h 33m

Toronto Island

dom. 31/8

1:25 p.m.-2:56 p.m.

Nonstop1h 31m

C$ 331

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

jue. 11/9

6:20 a.m.-11:44 a.m.

1 stop5h 24m

Toronto Pearson Intl

jue. 18/9

12:45 p.m.-2:25 p.m.

Nonstop1h 40m

C$ 339

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

lun. 18/8

5:11 p.m.-10:58 p.m.

1 stop5h 47m

Toronto Pearson Intl

jue. 28/8

2:50 p.m.-11:26 p.m.

1 stop8h 36m

C$ 370

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

jue. 4/9

8:40 a.m.-1:47 p.m.

1 stop5h 07m

Toronto Pearson Intl

dom. 7/9

8:10 a.m.-9:38 a.m.

Nonstop1h 28m

C$ 380

Washington, D.C.Hamilton

IAD - YHM

IADYHM

Washington, D.C. Dulles Intl

vie. 5/9

6:45 p.m.-12:40 a.m.

1 stop29h 55m

Hamilton

lun. 8/9

6:00 a.m.-5:50 p.m.

1 stop11h 50m

C$ 483

Washington, D.C.Hamilton

IAD - YHM

IADYHM

Washington, D.C. Dulles Intl

vie. 19/9

6:45 p.m.-11:48 p.m.

2 stops29h 03m

Hamilton

dom. 21/9

2:55 p.m.-5:50 p.m.

2 stops26h 55m

C$ 982

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/7

Showing 1-10 of 19 results
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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 25 July 2025.

The best time to book flights from Washington, D.C. Dulles Intl Airport to Toronto is 83 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, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Toronto (average of C$ 167). Flying from Washington, D.C. Dulles Intl Airport to Toronto in July is currently the most expensive (average of C$ 258). 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 29 julio 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 17% on your trip compared to booking a flight at noon.

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 Tuesday evenings when fares are most often at their lowest. Sunday at noon 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 29 julio 2025.

The most flights from IAD to YTO are scheduled on a Friday (26 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (18 on average).

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 29 julio 2025.
Read reviews from past customers who have flown Porter Airlines,Delta, andAir Transat 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
317 reviews
Check prices

Boarding

8.2

Entertainment

7.0

Comfort

8.0

Crew

8.7

Food

7.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Porter Airlines
8.0
Very good
317 reviews
Porter Airlines
8.0
Very good
317 reviews
Check prices

Boarding

8.2

Entertainment

7.0

Comfort

8.0

Crew

8.7

Food

7.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Delta
8.0
Very good
7,977 reviews
Porter Airlines
8.0
Very good
317 reviews
Check prices

Boarding

8.2

Entertainment

7.0

Comfort

8.0

Crew

8.7

Food

7.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Air Transat
7.7
Good
424 reviews
Porter Airlines
8.0
Very good
317 reviews
Check prices

Boarding

8.2

Entertainment

7.0

Comfort

8.0

Crew

8.7

Food

7.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
United Airlines
7.4
Good
8,899 reviews
Porter Airlines
8.0
Very good
317 reviews
Check prices

Boarding

8.2

Entertainment

7.0

Comfort

8.0

Crew

8.7

Food

7.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
WestJet
7.2
Good
2,973 reviews
Porter Airlines
8.0
Very good
317 reviews
Check prices

Boarding

8.2

Entertainment

7.0

Comfort

8.0

Crew

8.7

Food

7.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience

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.

  • 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$ 266. Other airlines that can offer you cheap pricing are Air Canada, from C$ 285, and Air Transat, from C$ 331. These flights start at 31% 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$ 106. Air Canada flights start at C$ 115 while deals on Air Transat start at C$ 126 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 ANA (89%), United Airlines (78%) or Republic Airways (76%) 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$ 522, our data shows the cheapest flight currently is C$ 109. When looking at the most popular route, (Washington, D.C. Dulles Intl - Toronto Pearson Intl), you can expect to pay C$ 332 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, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Toronto (average of C$ 167). Flying from Washington, D.C. Dulles Intl Airport to Toronto in July is currently the most expensive (average of C$ 258). 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 29 julio 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 177AverageC$ 441FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 181AverageC$ 482FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Porter AirlinesCheapestC$ 242AverageC$ 575FlexibilityNo cancel feeOn-time52%
Search Porter Airlines 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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