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Dulles Intl

$140+ Cheap flights from Ontario 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 1/19. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — IAD
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
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Cheap flight deals from Ontario to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (CAON) 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 November 21, 2024.

Find flight deals from Ontario to Dulles Intl

Cheapest flights from Ontario to Dulles Intl
Explore the most affordable flight options available from Ontario to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This oojo deal was found by Cheapflights users on 11/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1111:30 amYTZ - IAD
Nonstop1h 29mPorter Airlines
Wed 12/187:00 amIAD - YTZ
Nonstop1h 30mPorter Airlines
Deal found 11/20$215
This Air Canada deal was found by Cheapflights users on 11/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/148:10 amYYZ - IAD
Nonstop1h 36mAir Canada
Tue 12/1710:35 amIAD - YYZ
Nonstop1h 31mAir Canada
Deal found 11/20$235
This Mytrip deal was found by Cheapflights users on 11/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1911:30 amYTZ - IAD
Nonstop1h 29mAir Transat
Sun 12/227:00 amIAD - YTZ
Nonstop1h 30mAir Transat
Deal found 11/20$241
This United Airlines deal was found by Cheapflights users on 11/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/146:05 pmYYZ - IAD
1 stop4h 43mUnited Airlines
Tue 12/172:35 pmIAD - YYZ
Nonstop1h 31mUnited Airlines
Deal found 11/20$256
This United deal was found by Cheapflights users on 11/20. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1110:00 amYYZ - IAD
Nonstop1h 39mMultiple Airlines
Sat 12/143:55 pmIAD - YYZ
1 stop5h 55mMultiple Airlines
Deal found 11/20$266
This Air Canada deal was found by Cheapflights users on 11/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/410:25 amYTZ - IAD
1 stop4h 48mAir Canada
Sat 12/143:55 pmIAD - YTZ
1 stop5h 55mAir Canada
Deal found 11/20$267
This FlightHub deal was found by Cheapflights users on 11/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/168:55 pmYTZ - IAD
Nonstop1h 29mMultiple Airlines
Mon 12/307:00 amIAD - YTZ
Nonstop1h 30mMultiple Airlines
Deal found 11/20$272
This oojo deal was found by Cheapflights users on 11/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/129:00 amYUL - IAD
1 stop3h 59mPorter Airlines
Sun 12/151:45 pmIAD - YUL
1 stop5h 35mPorter Airlines
Deal found 11/19$277
This CheapTicketsDeal deal was found by Cheapflights users on 11/20. 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 CheapTicketsDeal is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/76:30 amYYZ - IAD
1 stop17h 23mWestJet
Tue 1/712:27 pmIAD - YYZ
1 stop10h 25mWestJet
Deal found 11/20$278
This Booking.com deal was found by Cheapflights users on 11/20. 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.
Thu 12/127:00 amYOW - IAD
1 stop5h 59mPorter Airlines
Sun 12/157:00 amIAD - YOW
1 stop4h 51mPorter Airlines
Deal found 11/20$284
This United Airlines deal was found by Cheapflights users on 11/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/76:15 pmYUL - IAD
1 stop4h 33mUnited Airlines
Sun 12/88:29 amIAD - YUL
Nonstop1h 51mUnited Airlines
Deal found 11/20$286
This United Airlines deal was found by Cheapflights users on 11/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/126:30 pmYUL - IAD
Nonstop2h 08mMultiple Airlines
Sun 12/153:55 pmIAD - YUL
Nonstop1h 55mMultiple Airlines
Deal found 11/19$331

Find flights from Ontario to Dulles Intl within your budget

Customize your flight search to find flights from Ontario 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 2,629,791 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Wed 12/11

11:30 am-12:59 pm

Nonstop1h 29m

Washington, D.C. Dulles Intl

Wed 12/18

7:00 am-8:30 am

Nonstop1h 30m

$215

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Sat 12/14

8:10 am-9:46 am

Nonstop1h 36m

Washington, D.C. Dulles Intl

Tue 12/17

10:35 am-12:06 pm

Nonstop1h 31m

$235

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Thu 12/19

11:30 am-12:59 pm

Nonstop1h 29m

Washington, D.C. Dulles Intl

Sun 12/22

7:00 am-8:30 am

Nonstop1h 30m

$241

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Thu 1/9

6:00 am-11:47 am

1 stop5h 47m

Washington, D.C. Dulles Intl

Mon 1/13

12:27 pm-4:12 pm

1 stop3h 45m

$254

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Sat 12/14

6:05 pm-10:48 pm

1 stop4h 43m

Washington, D.C. Dulles Intl

Tue 12/17

2:35 pm-4:06 pm

Nonstop1h 31m

$256

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Wed 12/11

10:00 am-11:39 am

Nonstop1h 39m

Washington, D.C. Dulles Intl

Sat 12/14

3:55 pm-9:50 pm

1 stop5h 55m

$266

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Wed 12/4

10:25 am-3:13 pm

1 stop4h 48m

Washington, D.C. Dulles Intl

Sat 12/14

3:55 pm-9:50 pm

1 stop5h 55m

$267

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Mon 12/16

8:55 pm-10:24 pm

Nonstop1h 29m

Washington, D.C. Dulles Intl

Mon 12/30

7:00 am-8:30 am

Nonstop1h 30m

$272

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Thu 12/12

9:00 am-12:59 pm

1 stop3h 59m

Washington, D.C. Dulles Intl

Sun 12/15

1:45 pm-7:20 pm

1 stop5h 35m

$277

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Tue 12/10

5:30 pm-4:48 pm

1 stop23h 18m

Washington, D.C. Dulles Intl

Sun 12/15

6:07 am-1:41 pm

1 stop7h 34m

$283

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 45 results
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Best time to book a flight from Ontario to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Ontario 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.

Travel insights for flights from Ontario to Dulles Intl

Get recent, data-driven insights about flights from Ontario to Dulles Intl including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from Region of Ontario to Washington, D.C. Dulles Intl Airport (average of $300). Flying from Region of Ontario to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $376). 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 ON to IAD?

Find hourly flight availability from Ontario 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 November 21, 2024.

When flying from Region of Ontario to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Region of Ontario to Washington, D.C. Dulles Intl Airport

Explore weekly flight availability from Ontario 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 November 21, 2024.

The most flights from CAON to IAD are scheduled on a Monday (19 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (17 on average).

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 November 21, 2024.
Get a feel of what it's like to fly with Porter Airlines, Air Canada and Air Transat from Ontario to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,758 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,758 reviews
Delta
8.0
Very good
8,758 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Porter Airlines
7.8
Good
286 reviews
Delta
8.0
Very good
8,758 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air Transat
7.8
Good
389 reviews
Delta
8.0
Very good
8,758 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
9,172 reviews
Delta
8.0
Very good
8,758 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

WestJet
7.3
Good
2,810 reviews
Delta
8.0
Very good
8,758 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Ontario 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 are the cheapest airlines to fly from Region of Ontario to Washington, D.C. Dulles Intl Airport one-way?

    For one-way options, check prices for Porter Airlines. According to our data, you can fly for as low as $140. Users have also found prices from $140 and $155 on Air Canada and United Airlines, respectively.

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

    Most travelers choose Toronto Pearson Intl - Washington, D.C. Dulles Intl, Montreal Pierre Elliott Trudeau Intl - Washington, D.C. Dulles Intl or Toronto Island - Washington, D.C. Dulles Intl when deciding on the best route from Region of Ontario to Washington, D.C. Dulles Intl Airport.

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

    Before booking your flight to Washington, D.C. Dulles Intl Airport from Region of Ontario, check out the most reliable airlines to get you to your destination on time: Avianca (94%), Republic Airways (94%), Copa Airlines( 93%).

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

    On average you can expect to pay $824 for a flight from Region of Ontario to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $137 while the most popular route, (Toronto Pearson Intl - Washington, D.C. Dulles Intl) is currently priced at $249.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario 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 Region of Ontario to Washington, D.C. Dulles Intl Airport?

    Currently, September is the cheapest month in which you can book a flight from Region of Ontario to Washington, D.C. Dulles Intl Airport (average of $300). Flying from Region of Ontario to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $376). 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

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Alternative routes for Ontario to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to Reagan-National flights
Pearson Intl to Dulles Intl flights
Pierre Elliott Trudeau Intl to Dulles Intl flights
Toronto Island to Dulles Intl flights
Pearson Intl to Baltimore flights
Pierre Elliott Trudeau Intl to Reagan-National flights
Ottawa to Dulles Intl flights
Toronto Island to Baltimore flights
Vancouver Intl to Dulles Intl flights
Vancouver Intl to Baltimore flights
Ottawa to Reagan-National flights
Vancouver Intl to Reagan-National flights
Pierre Elliott Trudeau Intl to Baltimore flights
Calgary to Dulles Intl flights
Ottawa to Baltimore flights
Calgary to Baltimore flights
Calgary to Reagan-National flights
Toronto Island to Reagan-National flights
Winnipeg to Dulles Intl flights
Winnipeg to Baltimore flights
Moncton to Dulles Intl flights
Edmonton to Baltimore flights
Québec City to Dulles Intl flights
Edmonton to Dulles Intl flights
Edmonton to Reagan-National flights
Winnipeg to Reagan-National flights
Victoria to Dulles Intl flights
Halifax to Dulles Intl flights
Québec City to Baltimore flights
Halifax to Baltimore flights
Québec City to Reagan-National flights
Halifax to Reagan-National flights
Regina to Baltimore flights
London to Reagan-National flights
London to Baltimore flights
Victoria to Reagan-National flights
Victoria to Baltimore flights
St. John's to Dulles Intl flights
London to Dulles Intl flights
Kelowna to Baltimore flights
Kamloops to Baltimore flights
St. John's to Reagan-National flights
St. John's to Baltimore flights
Kelowna to Dulles Intl flights
Kelowna to Reagan-National flights
Whitehorse to Dulles Intl flights
Saskatoon to Reagan-National flights

Top 3 airlines flying from Ontario to Dulles Intl

Discover the top 3 airlines that operate flights from Ontario 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 2,629,791 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$184Average$350FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$212Average$349FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$219Average$306FlexibilityNo cancel feeOn-time69%
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