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Washington, D.C.

$124+ 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 3/14. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — WAS
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap 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 January 29, 2026.

This FlightHub deal was found by Cheapflights users on 1/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/198:50 am
YTZ
-
IAD
Nonstop1h 32m
Porter Airlines
Wed 2/2511:40 am
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Deal found 1/27$198
This Air Canada deal was found by Cheapflights users on 1/26. 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.
Fri 4/241:00 pm
YYZ
-
IAD
1 stop6h 40m
Air Canada
Sun 4/269:55 am
IAD
-
YYZ
1 stop6h 44m
Air Canada
Deal found 1/26$198
This FlightHub deal was found by Cheapflights users on 1/26. 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 4/278:55 am
YTZ
-
IAD
Nonstop1h 29m
Porter Airlines
Tue 5/511:30 am
IAD
-
YTZ
Nonstop1h 31m
Porter Airlines
Deal found 1/26$200
This Trip.com deal was found by Cheapflights users on 1/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/198:15 am
YYZ
-
DCA
1 stop4h 04m
Air Canada
Sun 2/226:00 am
DCA
-
YYZ
1 stop5h 40m
Air Canada
Deal found 1/28$201
This Trip.com deal was found by Cheapflights users on 1/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/203:45 pm
YTZ
-
IAD
Nonstop1h 29m
Porter Airlines
Mon 3/2311:40 am
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Deal found 1/28$201
This SmartFares deal was found by Cheapflights users on 1/28. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/148:30 am
YTZ
-
DCA
1 stop7h 01m
Air Canada
Sat 3/216:00 am
DCA
-
YTZ
1 stop5h 55m
Air Canada
Deal found 1/28$201
This Trip.com deal was found by Cheapflights users on 1/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/198:30 am
YTZ
-
DCA
1 stop7h 01m
Air Canada
Mon 2/2312:55 pm
DCA
-
YTZ
1 stop5h 18m
Air Canada
Deal found 1/27$202
This Mytrip deal was found by Cheapflights users on 1/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/188:55 am
YTZ
-
IAD
Nonstop1h 29m
Porter Airlines
Thu 3/1911:40 am
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Deal found 1/27$203
This Trip.com deal was found by Cheapflights users on 1/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/1411:05 am
YTZ
-
IAD
Nonstop1h 29m
Porter Airlines
Sun 2/226:30 pm
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Deal found 1/28$204
This Trip.com deal was found by Cheapflights users on 1/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/199:30 am
YTZ
-
DCA
1 stop6h 01m
Air Canada
Sun 2/2212:55 pm
DCA
-
YTZ
1 stop5h 18m
Air Canada
Deal found 1/28$204
This Trip.com deal was found by Cheapflights users on 1/26. 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.
Fri 2/279:00 pm
YYZ
-
DCA
Nonstop1h 35m
Air Canada
Mon 3/98:40 pm
DCA
-
YYZ
Nonstop1h 37m
Air Canada
Deal found 1/26$206
This FlightHub deal was found by Cheapflights users on 1/26. 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.
Fri 4/243:45 pm
YTZ
-
IAD
Nonstop1h 29m
Porter Airlines
Sun 4/266:30 pm
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Deal found 1/26$206

Find 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$198
(FlightHub)

One-way from

$124
(Gotogate)

Popular in

June

Cheapest in

October

Average price

$277

Good round-trip deal

$126 or less

Good one-way deal

$132 or less
Provider with most accurate pricing for Toronto (YTO)-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Toronto (YTO)-Washington, D.C. (WAS) flights.
Search Deals
From Ontario to Washington, D.C. (WAS)
Search Deals
One-way flight from Ontario to Washington, D.C. (WAS)
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Ontario to Washington, D.C. (WAS).
Search Deals
Price to beat on a one-way flight from Ontario to Washington, D.C. (WAS).
Search Deals

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 January 29, 2026.
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

Fri 4/10

8:55 am-10:24 am

Nonstop1h 29m

Washington, D.C. Dulles Intl

Sun 4/12

6:30 pm-8:00 pm

Nonstop1h 30m

$198

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Thu 2/19

8:50 am-10:22 am

Nonstop1h 32m

Washington, D.C. Dulles Intl

Thu 2/26

11:40 am-1:10 pm

Nonstop1h 30m

$198

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Thu 2/19

8:50 am-10:22 am

Nonstop1h 32m

Washington, D.C. Dulles Intl

Wed 2/25

11:40 am-1:10 pm

Nonstop1h 30m

$198

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Sat 2/21

11:05 am-12:34 pm

Nonstop1h 29m

Washington, D.C. Dulles Intl

Sat 2/28

1:50 pm-3:20 pm

Nonstop1h 30m

$198

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Mon 4/27

8:55 am-10:24 am

Nonstop1h 29m

Washington, D.C. Dulles Intl

Tue 5/5

11:30 am-1:01 pm

Nonstop1h 31m

$200

TorontoWashington, D.C.

YTZ - DCA

YTZDCA

Toronto Island

Sat 3/14

8:30 am-3:31 pm

1 stop7h 01m

Washington, D.C. Reagan-National

Sat 3/21

6:00 am-11:55 am

1 stop5h 55m

$201

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Wed 3/18

8:55 am-10:24 am

Nonstop1h 29m

Washington, D.C. Dulles Intl

Thu 3/19

11:40 am-1:10 pm

Nonstop1h 30m

$203

TorontoWashington, D.C.

YTZ - DCA

YTZDCA

Toronto Island

Thu 2/19

9:30 am-3:31 pm

1 stop6h 01m

Washington, D.C. Reagan-National

Sun 2/22

12:55 pm-6:13 pm

1 stop5h 18m

$205

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Fri 4/24

3:45 pm-5:14 pm

Nonstop1h 29m

Washington, D.C. Dulles Intl

Sun 4/26

6:30 pm-8:00 pm

Nonstop1h 30m

$206

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Wed 3/4

8:55 am-10:24 am

Nonstop1h 29m

Washington, D.C. Dulles Intl

Wed 3/11

11:40 am-1:10 pm

Nonstop1h 30m

$207

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

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, April is the cheapest month in which you can book a flight from Region of Ontario to Washington, D.C. (average of $73). Flying from Region of Ontario to Washington, D.C. in August is currently the most expensive (average of $156). 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 January 29, 2026.

It’s typically best to fly out from Region of Ontario to Washington, D.C. in the morning. Doing so could potentially save you 27% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Region of Ontario to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Washington, D.C.. Price data was last updated on January 24, 2026.

Travelers seeking maximum savings on their Region of Ontario to Washington, D.C. flight should consider departing on Sunday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 January 29, 2026.

The most flights from CAON to WAS are scheduled on a Thursday (27 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (19 on average).

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

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.

  • How long is the flight from Region of Ontario to Washington, D.C.?

    Porter Airlines, Air Canada, and United Airlines can get you from Region of Ontario to Washington, D.C. in just under 1h 29m. Your travel time can differ by up to 5h 32m. Airlines will cover a distance of 339 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $89. However, be on the lookout for offers from United Airlines and Air Canada, 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. Reagan-National, Toronto Pearson 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..

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

    The top 3 most reliable airlines when flying from Region of Ontario to Washington, D.C. are Avianca (68%), Copa Airlines (68%) and Republic Airways (68%).

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

    On average you can expect to pay $631 for a flight from Region of Ontario to Washington, D.C.. The cheapest flight overall is $121 while the most popular route, (Toronto Pearson Intl - Washington, D.C. Reagan-National) is currently priced at $214.

  • 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, April is the cheapest month in which you can book a flight from Region of Ontario to Washington, D.C. (average of $73). Flying from Region of Ontario to Washington, D.C. in August is currently the most expensive (average of $156). 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
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Linthicum Heights
Rockville
Laurel
Towson
Manassas
Largo
Bowie
McLean
Clinton
Upper Marlboro

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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 Reagan-National flights
Pearson Intl to Dulles Intl flights
Toronto Island to Dulles Intl flights
Pierre Elliott Trudeau Intl to Dulles Intl flights
Pierre Elliott Trudeau Intl to Reagan-National flights
Vancouver Intl to Dulles Intl flights
Vancouver Intl to Reagan-National flights
Toronto Island to Reagan-National flights
Ottawa to Reagan-National flights
Ottawa to Dulles Intl flights
Calgary to Dulles Intl flights
Halifax to Dulles Intl flights
Winnipeg to Dulles Intl flights
Winnipeg to Reagan-National flights
Calgary to Reagan-National flights
Halifax to Reagan-National flights
Québec City to Dulles Intl flights
St. John's to Reagan-National flights
Edmonton to Reagan-National flights
Québec City to Reagan-National flights
Edmonton to Dulles Intl flights
St. John's to Dulles Intl flights
London to Reagan-National flights
Moncton to Dulles Intl flights
Victoria to Dulles Intl flights
Kelowna to Dulles Intl flights
Fort McMurray to Reagan-National flights
Kelowna to Reagan-National flights
Saskatoon to Reagan-National flights
Victoria to Reagan-National flights
London to Dulles Intl flights
Whitehorse to Dulles Intl 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$133Average$324FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$158Average$347FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$174Average$319FlexibilityNo cancel feeOn-time52%
American AirlinesCheapest$213Average$340FlexibilityNo cancel feeOn-time71%
DeltaCheapest$222Average$393FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$260Average$334FlexibilityNo cancel feeOn-time60%

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