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Dulles Intl

$118+ Cheap flights from Toronto Island (YTZ) to Dulles Intl (IAD)

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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
YTZ — IAD
Aug 18 — Aug 251
Mon 8/18
Mon 8/25
1 adult, Economy
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Cheap flight deals from Toronto Island to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Toronto Island (YTZ) to Dulles Intl (IAD). 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 August 13, 2025.

Round-trip from

$187
(SmartFares)

One-way from

$118
(SmartFares)

Popular in

October

Cheapest in

May

Average price

$240

Good round-trip deal

$183 or less

Good one-way deal

$134 or less
From Toronto Island to Washington, D.C. Dulles Intl
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One-way flight from Toronto Island to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 11% potential increase in price ($29 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Toronto Island to Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from Toronto Island to Washington, D.C. Dulles Intl.
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Find flight deals from Toronto Island to Dulles Intl

Cheapest flights from Toronto Island to Dulles Intl
Explore the most affordable flight options available from Toronto Island to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 13, 2025.

This SmartFares deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/88:45 amYTZ - IAD
Nonstop1h 31mPorter Airlines
Thu 9/1111:35 amIAD - YTZ
Nonstop1h 33mPorter Airlines
Deal found 8/12$187
This SmartFares deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/31:35 pmYTZ - IAD
Nonstop1h 31mPorter Airlines
Sun 9/1411:35 amIAD - YTZ
Nonstop1h 33mPorter Airlines
Deal found 8/12$188
This SmartFares deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/121:35 pmYTZ - IAD
Nonstop1h 31mPorter Airlines
Wed 9/244:20 pmIAD - YTZ
Nonstop1h 33mPorter Airlines
Deal found 8/13$189
This Booking.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/261:35 pmYTZ - IAD
Nonstop1h 31mPorter Airlines
Fri 10/34:20 pmIAD - YTZ
Nonstop1h 33mPorter Airlines
Deal found 8/11$190
This SmartFares deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/48:45 amYTZ - IAD
Nonstop1h 31mPorter Airlines
Sun 9/74:20 pmIAD - YTZ
Nonstop1h 33mPorter Airlines
Deal found 8/12$191
This SmartFares deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/101:35 pmYTZ - IAD
Nonstop1h 31mPorter Airlines
Fri 9/1211:35 amIAD - YTZ
Nonstop1h 33mPorter Airlines
Deal found 8/11$192
This SmartFares deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/31:35 pmYTZ - IAD
Nonstop1h 31mPorter Airlines
Tue 9/94:20 pmIAD - YTZ
Nonstop1h 33mPorter Airlines
Deal found 8/11$195
This Trip.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/61:35 pmYTZ - IAD
Nonstop1h 31mPorter Airlines
Tue 9/94:20 pmIAD - YTZ
Nonstop1h 33mPorter Airlines
Deal found 8/12$196
This SmartFares deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/268:45 amYTZ - IAD
Nonstop1h 31mPorter Airlines
Tue 9/304:20 pmIAD - YTZ
Nonstop1h 33mPorter Airlines
Deal found 8/11$197
This Trip.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/78:45 amYTZ - IAD
Nonstop1h 31mPorter Airlines
Mon 9/84:20 pmIAD - YTZ
Nonstop1h 33mPorter Airlines
Deal found 8/11$198

Cheapflights Fare Finder

 
Customize your flight search to find flights from Toronto Island to Dulles Intl 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 2,558,603 searches. Data last updated August 13, 2025.
Use the filters below to find and compare flights from Toronto Island Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Toronto Island

Fly to

Dulles Intl

Route

Depart

Return

Price

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Tue 9/9

1:35 pm-3:06 pm

Nonstop1h 31m

Washington, D.C. Dulles Intl

Sun 9/14

11:35 am-1:08 pm

Nonstop1h 33m

$187

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Mon 9/8

8:45 am-10:16 am

Nonstop1h 31m

Washington, D.C. Dulles Intl

Thu 9/11

11:35 am-1:08 pm

Nonstop1h 33m

$187

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Mon 9/8

1:35 pm-3:06 pm

Nonstop1h 31m

Washington, D.C. Dulles Intl

Wed 9/10

4:20 pm-5:53 pm

Nonstop1h 33m

$187

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Fri 9/26

1:35 pm-3:06 pm

Nonstop1h 31m

Washington, D.C. Dulles Intl

Fri 10/3

11:35 am-1:08 pm

Nonstop1h 33m

$187

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Fri 10/10

1:35 pm-3:06 pm

Nonstop1h 31m

Washington, D.C. Dulles Intl

Wed 10/15

4:20 pm-5:53 pm

Nonstop1h 33m

$187

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Thu 10/9

1:35 pm-3:06 pm

Nonstop1h 31m

Washington, D.C. Dulles Intl

Wed 10/15

4:20 pm-5:53 pm

Nonstop1h 33m

$187

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Mon 10/13

8:45 am-10:16 am

Nonstop1h 31m

Washington, D.C. Dulles Intl

Fri 10/17

11:35 am-1:08 pm

Nonstop1h 33m

$187

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Fri 10/24

8:45 am-10:16 am

Nonstop1h 31m

Washington, D.C. Dulles Intl

Thu 10/30

6:35 pm-8:05 pm

Nonstop1h 30m

$187

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Wed 9/3

1:35 pm-3:06 pm

Nonstop1h 31m

Washington, D.C. Dulles Intl

Sun 9/14

11:35 am-1:08 pm

Nonstop1h 33m

$188

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Fri 9/5

8:45 am-10:16 am

Nonstop1h 31m

Washington, D.C. Dulles Intl

Mon 9/8

11:35 am-1:08 pm

Nonstop1h 33m

$188

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Showing 1-10 of 22 results
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The best insider tips for Toronto Island Airport to Washington, D.C. Dulles Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Toronto Island Airport to Washington, D.C. Dulles Intl Airport trip
Airports
YTZ

YTZ offers fast security lines due to its small size. Arrive with time to spare, but expect minimal waiting.

Read more about YTZby Kaitlyn McInnis
IAD

Use the Washington Metro Silver line for a cheap, 40-minute ride to Dulles, with the station just five minutes from the terminal.

Read more about IADby Ramsey Qubein
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on IAD

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Kaitlyn McInnis

Kaitlyn McInnis

Expert on YTZ

Kaitlyn McInnis

Kaitlyn McInnis

Kaitlyn is a guidebook author and travel writer splitting her time between Atlantic Canada and Istanbul, Türkiye. She has visited over fifty countries and all seven continents, so she is very familiar with many hotels, airports and airlines around the globe. But her favorite type of vacation is sunbathing by the sea with a good book in hand.

Read more

Best time to book a flight from Toronto Island to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Toronto Island 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 Toronto Island Airport to Washington, D.C. Dulles Intl Airport

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

Currently, July is the cheapest month in which you can book a flight from Toronto Island Airport to Washington, D.C. Dulles Intl Airport (average of $302). Flying from Toronto Island Airport to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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 YTZ to IAD?

Find hourly flight availability from Toronto Island to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 13, 2025.

One of the essential ways to save on airfare from Toronto Island Airport to Washington, D.C. Dulles Intl Airport is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 14% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Toronto Island to Dulles Intl. Price data was last updated on August 10, 2025.

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

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

Explore weekly flight availability from Toronto Island to Dulles Intl. 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 August 13, 2025.

The most flights from YTZ to IAD are scheduled on a Monday (4 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).

How much does it cost to fly round-trip from Toronto Island Airport to Washington, D.C. Dulles Intl Airport?

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated August 13, 2025.
Peruse reviews from past customers who have flown with Porter Airlines from Toronto Island Airport to Washington, D.C. Dulles Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
332 reviews

Entertainment

7.0

Overall

8.0

Boarding

8.2

Food

7.6

Comfort

8.0

Crew

8.7

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
332 reviews
Porter Airlines
8.0
Very good
332 reviews

Entertainment

7.0

Overall

8.0

Boarding

8.2

Food

7.6

Comfort

8.0

Crew

8.7

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 Toronto Island to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What is the cheapest airline to fly from Toronto Island Airport to Washington, D.C. Dulles Intl Airport round-trip?

    Cheapflights users have booked flights from Toronto Island Airport to Washington, D.C. Dulles Intl Airport round-trip from $187. You may be able to fly from Toronto Island Airport to Washington, D.C. Dulles Intl Airport for 22% less than the average price by searching for this airline.

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

    Consider Porter Airlines (80%), Porter Airlines (80%) or Air Transat (80%) when booking your flight. These represent the most reliable airlines when flying from Toronto Island Airport to Washington, D.C. Dulles Intl Airport.

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

    Looking at all options, your cheapest flight can be booked for $100. While the most popular route (Toronto Island - Washington, D.C. Dulles Intl) can be booked for $187 on average our data indicates $200 when flying from Toronto Island Airport to Washington, D.C. Dulles Intl Airport.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Toronto Island to Dulles Intl 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 Toronto Island Airport to Washington, D.C. Dulles Intl Airport?

    Currently, July is the cheapest month in which you can book a flight from Toronto Island Airport to Washington, D.C. Dulles Intl Airport (average of $302). Flying from Toronto Island Airport to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Springfield
Fredericksburg
Gaithersburg
Towson
Linthicum Heights
Fairfax
Manassas
Falls Church
Laurel
Rockville
Oxon Hill
National Harbor
Dundalk
Waldorf
Bowie

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Alternative routes for Toronto Island to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to Dulles Intl flights
Pearson Intl to Reagan-National flights
Pearson Intl to Baltimore flights
Toronto Island to Baltimore flights
Toronto Island to Reagan-National flights

Top airline flying from Toronto Island to Dulles Intl

Discover the top airline that operate flights from Toronto Island to Dulles Intl. 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 2,558,603 searches. Data last updated August 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$174Average$292FlexibilityNo cancel feeOn-time52%

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