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Washington, D.C.

$117+ Cheap flights from Ontario to Washington, D.C. (WAS)

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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — WAS
ago. 4 — ago. 111
lun. 8/4
lun. 8/11
1 adult, Economy
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Cheap flight deals from Ontario to Washington, D.C.

Keep the following information in mind while searching for Ontario to Washington, D.C. flight deals. Data was last updated julio 30, 2025.

Round-trip from

$164
(KAYAK)

One-way from

$117
(Trip.com)

Popular in

June

Cheapest in

April

Average price

$289

Good round-trip deal

$176 or less

Good one-way deal

$124 or less
From Ontario to Washington, D.C. (WAS)
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One-way flight from Ontario to Washington, D.C. (WAS)
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Highest demand for flights based on searches. 7% potential increase in price ($21 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 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 Ontario to Washington, D.C. (WAS).
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Price to beat on a one-way flight from Ontario to Washington, D.C. (WAS).
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Find flight deals from Ontario to Washington, D.C.

Cheapest flights from Ontario to Washington, D.C.
Explore the most affordable flight options available from Ontario to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 30, 2025.

This KAYAK deal was found by Cheapflights users on 7/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/128:45 amYTZ - IAD
Nonstop1h 31mPorter Airlines
sáb. 9/204:20 pmIAD - YTZ
Nonstop1h 33mPorter Airlines
Deal found 7/29$164
This Air Canada deal was found by Cheapflights users on 7/29. 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.
sáb. 12/69:00 pmYYZ - DCA
Nonstop1h 35mAir Canada
dom. 12/76:59 amDCA - YYZ
Nonstop1h 36mAir Canada
Deal found 7/29$185
This Air Canada deal was found by Cheapflights users on 7/29. 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.
vie. 9/1912:10 pmYYZ - IAD
Nonstop1h 28mAir Canada
dom. 9/2110:20 amIAD - YYZ
Nonstop1h 32mAir Canada
Deal found 7/29$185
This Air Canada deal was found by Cheapflights users on 7/29. 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.
vie. 9/1910:20 amYTZ - IAD
2 stops10h 45mAir Canada
lun. 9/229:35 amIAD - YTZ
2 stops9h 10mAir Canada
Deal found 7/29$199
This Mytrip deal was found by Cheapflights users on 7/29. 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.
jue. 9/48:45 amYTZ - IAD
Nonstop1h 31mMultiple Airlines
dom. 9/79:45 amIAD - YTZ
1 stop5h 00mMultiple Airlines
Deal found 7/29$202
This SmartFares deal was found by Cheapflights users on 7/27. 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.
vie. 8/291:25 pmYTZ - IAD
Nonstop1h 31mAir Transat
lun. 9/14:10 pmIAD - YTZ
Nonstop1h 33mAir Transat
Deal found 7/27$207
This American Airlines deal was found by Cheapflights users on 7/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/96:20 pmYYZ - DCA
1 stop5h 04mAmerican Airlines
mié. 12/1010:04 amDCA - YYZ
Nonstop1h 46mAmerican Airlines
Deal found 7/30$214
This United Airlines deal was found by Cheapflights users on 7/30. 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.
jue. 9/410:05 amYYZ - IAD
Nonstop1h 40mUnited Airlines
dom. 9/78:28 amIAD - YYZ
Nonstop1h 36mUnited Airlines
Deal found 7/30$219
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/276:04 amYYZ - IAD
1 stop5h 58mDelta
mié. 9/36:15 pmIAD - YYZ
1 stop4h 43mDelta
Deal found 7/29$228
This United deal was found by Cheapflights users on 7/29. 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.
jue. 9/49:00 amYYZ - DCA
1 stop5h 16mMultiple Airlines
dom. 9/76:59 amDCA - YYZ
Nonstop1h 32mMultiple Airlines
Deal found 7/29$235
This Mytrip deal was found by Cheapflights users on 7/30. 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.
sáb. 9/136:30 amYYZ - BWI
1 stop16h 55mMultiple Airlines
sáb. 9/208:16 pmBWI - YYZ
1 stop17h 49mMultiple Airlines
Deal found 7/30$236
This United deal was found by Cheapflights users on 7/28. 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.
jue. 8/287:00 amYYZ - IAD
1 stop4h 55mMultiple Airlines
mié. 9/310:20 amIAD - YYZ
Nonstop1h 32mMultiple Airlines
Deal found 7/28$236

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Washington, D.C. 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 julio 30, 2025.
Use the filters below to find and compare flights from Ontario to Washington, D.C. that are best for you.

Fly from

Ontario

Fly to

Washington, D.C.

Route

Depart

Return

Price

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

vie. 9/12

8:45 am-10:16 am

Nonstop1h 31m

Washington, D.C. Dulles Intl

sáb. 9/20

4:20 pm-5:53 pm

Nonstop1h 33m

$164

TorontoWashington, D.C.

YYZ - DCA

YYZDCA

Toronto Pearson Intl

mié. 9/3

7:25 am-8:59 am

Nonstop1h 34m

Washington, D.C. Reagan-National

lun. 9/8

6:59 am-8:31 am

Nonstop1h 32m

$185

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

vie. 9/19

12:10 pm-1:38 pm

Nonstop1h 28m

Washington, D.C. Dulles Intl

lun. 9/22

2:25 pm-3:57 pm

Nonstop1h 32m

$185

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

vie. 9/19

10:20 am-9:05 pm

2 stops10h 45m

Washington, D.C. Dulles Intl

lun. 9/22

9:35 am-6:45 pm

2 stops9h 10m

$199

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

jue. 9/4

8:45 am-10:16 am

Nonstop1h 31m

Washington, D.C. Dulles Intl

dom. 9/7

9:45 am-2:45 pm

1 stop5h 00m

$202

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

vie. 8/29

1:25 pm-2:56 pm

Nonstop1h 31m

Washington, D.C. Dulles Intl

lun. 9/1

4:10 pm-5:43 pm

Nonstop1h 33m

$207

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

jue. 9/4

10:05 am-11:45 am

Nonstop1h 40m

Washington, D.C. Dulles Intl

dom. 9/7

8:28 am-10:04 am

Nonstop1h 36m

$219

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

mié. 8/27

6:04 am-12:02 pm

1 stop5h 58m

Washington, D.C. Dulles Intl

mié. 9/3

6:15 pm-10:58 pm

1 stop4h 43m

$228

TorontoWashington, D.C.

YYZ - DCA

YYZDCA

Toronto Pearson Intl

jue. 9/4

9:00 am-2:16 pm

1 stop5h 16m

Washington, D.C. Reagan-National

dom. 9/7

6:59 am-8:31 am

Nonstop1h 32m

$235

TorontoBaltimore

YYZ - BWI

YYZBWI

Toronto Pearson Intl

sáb. 9/13

6:30 am-11:25 pm

1 stop16h 55m

Baltimore/Washington

sáb. 9/20

8:16 pm-2:05 pm

1 stop17h 49m

$236

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 60 results
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Best time to book a flight from Ontario to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Washington, D.C.

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

Currently, August is the cheapest month in which you can book a flight from Region of Ontario to Washington, D.C. (average of $241). Flying from Region of Ontario to Washington, D.C. in March is currently the most expensive (average of $290). 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 WAS?

Find hourly flight availability from Ontario to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 30, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to Washington, D.C. as you normally would.

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

Explore weekly flight availability from Ontario to Washington, D.C.. 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 julio 30, 2025.

The most flights from CAON to WAS are scheduled on a Monday (28 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (21 on average).

How much does it cost to fly round-trip from Region of Ontario to Washington, D.C.?

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated julio 30, 2025.
Get a feel of what it's like to fly with Porter Airlines, Delta, and Air Transat from Ontario to Washington, D.C. by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
318 reviews

Boarding

8.2

Crew

8.7

Food

7.6

Overall

8.0

Comfort

8.0

Entertainment

7.0

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
318 reviews
Porter Airlines
8.0
Very good
318 reviews

Boarding

8.2

Crew

8.7

Food

7.6

Overall

8.0

Comfort

8.0

Entertainment

7.0

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
7,980 reviews
Porter Airlines
8.0
Very good
318 reviews

Boarding

8.2

Crew

8.7

Food

7.6

Overall

8.0

Comfort

8.0

Entertainment

7.0

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
318 reviews

Boarding

8.2

Crew

8.7

Food

7.6

Overall

8.0

Comfort

8.0

Entertainment

7.0

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
Austrian Airlines
7.6
Good
823 reviews
Porter Airlines
8.0
Very good
318 reviews

Boarding

8.2

Crew

8.7

Food

7.6

Overall

8.0

Comfort

8.0

Entertainment

7.0

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
8,896 reviews
Porter Airlines
8.0
Very good
318 reviews

Boarding

8.2

Crew

8.7

Food

7.6

Overall

8.0

Comfort

8.0

Entertainment

7.0

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 Ontario to Washington, D.C.. 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. one-way?

    The cheapest airline one-way is Porter Airlines, with whom users have recently found tickets for as low as $117. However, be on the lookout for offers from Air Canada and Air Transat, as they are both options that can get you from Region of Ontario to Washington, D.C. for a low price.

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

    Most travelers choose Toronto Pearson Intl - Washington, D.C. Dulles Intl, Toronto Pearson Intl - Washington, D.C. Reagan-National or Toronto Island - Washington, D.C. Dulles Intl when deciding on the best route from Region of Ontario to Washington, D.C..

  • Can I find deals for flights from Ontario to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Ontario to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Washington, D.C.?

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

  • Can I find deals for business class flights from Ontario to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Ontario to Washington, D.C. 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.?

    Currently, August is the cheapest month in which you can book a flight from Region of Ontario to Washington, D.C. (average of $241). Flying from Region of Ontario to Washington, D.C. in March is currently the most expensive (average of $290). 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.?

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

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Alternative routes for Ontario to Washington, D.C.

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
Toronto Island to Dulles Intl flights
Pierre Elliott Trudeau Intl to Reagan-National flights
Vancouver Intl to Dulles Intl flights
Pierre Elliott Trudeau Intl to Dulles Intl flights
Calgary to Dulles Intl flights
Ottawa to Dulles Intl flights
Vancouver Intl to Reagan-National flights
Calgary to Reagan-National flights
Winnipeg to Dulles Intl flights
Ottawa to Reagan-National flights
Halifax to Dulles Intl flights
Edmonton to Dulles Intl flights
Halifax to Reagan-National flights
Winnipeg to Reagan-National flights
Toronto Island to Reagan-National flights
Edmonton to Reagan-National flights
Moncton to Dulles Intl flights
Québec City to Dulles Intl flights
Kelowna to Dulles Intl flights
Québec City to Reagan-National flights
Victoria to Dulles Intl flights
London to Dulles Intl flights
St. John's to Reagan-National flights
St. John's to Dulles Intl flights
Fort McMurray to Reagan-National flights
Victoria to Reagan-National flights
Saskatoon to Reagan-National flights
Kelowna to Reagan-National flights
Whitehorse to Dulles Intl flights
London to Reagan-National flights

Top 6 airlines flying from Ontario to Washington, D.C.

Discover the top 6 airlines that operate flights from Ontario to Washington, D.C.. 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 julio 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$158Average$370FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$174Average$328FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$184Average$327FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$213Average$341FlexibilityNo cancel feeOn-time71%
DeltaCheapest$221Average$276FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$290Average$361FlexibilityNo cancel feeOn-time60%

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