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Washington, D.C.

$133+ Cheap flights from Ontario to Washington, D.C. (WAS)

YYZ — WAS
Dec 10 — Dec 171
Thu 12/10
Thu 12/17
1 adult, Economy
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Cheap flight deals from Ontario to Washington, D.C.

Cheapest flights from Ontario to Washington, D.C.

Thu 12/109:10 am -
Nonstop1h 30m
Thu 12/1711:20 am -
Nonstop1h 30m
Deal found 11/9$199
Thu 12/39:10 am -
Nonstop1h 30m
Tue 12/811:20 am -
Nonstop1h 30m
Deal found 11/9$200
Tue 11/249:10 am -
Nonstop1h 29m
Mon 11/306:25 pm -
Nonstop1h 30m
Deal found 11/9$201
Thu 12/179:10 am -
Nonstop1h 30m
Mon 1/411:20 am -
Nonstop1h 32m
Deal found 11/9$212
Thu 11/266:20 pm -
Nonstop1h 38m
Sun 11/296:55 pm -
Nonstop1h 33m
Deal found 11/6$213
Sat 12/59:10 am -
Nonstop1h 30m
Sun 12/611:20 am -
Nonstop1h 30m
Deal found 11/9$213
Fri 12/189:00 pm -
Nonstop1h 38m
Tue 1/59:40 am -
Nonstop1h 33m
Deal found 11/4$214
Mon 12/79:00 pm -
Nonstop1h 38m
Mon 12/146:55 pm -
Nonstop1h 33m
Deal found 11/9$215
Sat 12/56:40 pm -
Nonstop1h 30m
Sun 12/69:55 am -
Nonstop1h 27m
Deal found 11/9$215
Thu 12/179:10 am -
Nonstop1h 30m
Sat 1/911:20 am -
Nonstop1h 32m
Deal found 11/9$216
Wed 12/169:10 am -
Nonstop1h 30m
Sat 1/911:20 am -
Nonstop1h 32m
Deal found 11/9$217
Thu 12/39:10 am -
Nonstop1h 30m
Sun 12/611:20 am -
Nonstop1h 30m
Deal found 11/9$218

Find flight deals from Ontario to Washington, D.C.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$213
(VIAZA)

One-way from

$133
(Flysmarter)

Popular in

March

Cheapest in

November

Average price

$227

Good round-trip deal

$224 or less

Good one-way deal

$119 or less
Provider with most accurate pricing for Toronto (YTO)-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for Toronto (YTO)-Washington, D.C. (WAS) flights.
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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. 8% potential increase in price ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in November 2026
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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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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Ontario to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoWashington, D.C.

YTZ Toronto Island - DCA Washington, D.C. Reagan-National

YTZDCA

Toronto Island

Tue 12/8

3:35 pm-9:59 pm

2 stops6h 24m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$139
Quickest round-trip

TorontoWashington, D.C.

YTZ Toronto Island - IAD Washington, D.C. Dulles Intl

YTZIAD

Toronto Island

Sun 3/28

9:10 am-10:40 am

Nonstop1h 30m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$145

TorontoWashington, D.C.

YTZ Toronto Island - DCA Washington, D.C. Reagan-National

YTZDCA

Toronto Island

Tue 12/1

3:35 pm-9:59 pm

2 stops6h 24m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$146

TorontoWashington, D.C.

YTZ Toronto Island - DCA Washington, D.C. Reagan-National

YTZDCA

Toronto Island

Sun 11/22

8:20 am-12:19 pm

1 stop3h 59m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$154

TorontoWashington, D.C.

YTZ Toronto Island - DCA Washington, D.C. Reagan-National

YTZDCA

Toronto Island

Sat 11/21

8:20 am-3:24 pm

2 stops7h 04m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$155

TorontoWashington, D.C.

YYZ Toronto Pearson Intl - DCA Washington, D.C. Reagan-National

YYZDCA

Toronto Pearson Intl

Mon 11/30

6:10 pm-11:26 pm

1 stop5h 16m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$165

TorontoWashington, D.C.

YTZ Toronto Island - IAD Washington, D.C. Dulles Intl

YTZIAD

Toronto Island

Tue 12/22

9:10 am-10:40 am

Nonstop1h 30m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$169

TorontoWashington, D.C.

YYZ Toronto Pearson Intl - IAD Washington, D.C. Dulles Intl

YYZIAD

Toronto Pearson Intl

Sat 11/21

9:45 am-4:18 pm

1 stop6h 33m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$172

TorontoWashington, D.C.

YYZ Toronto Pearson Intl - IAD Washington, D.C. Dulles Intl

YYZIAD

Toronto Pearson Intl

Tue 11/24

6:00 am-11:52 am

1 stop5h 52m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$172

TorontoWashington, D.C.

YYZ Toronto Pearson Intl - IAD Washington, D.C. Dulles Intl

YYZIAD

Toronto Pearson Intl

Mon 11/23

6:10 pm-11:21 pm

1 stop5h 11m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$172

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/7

Showing 1-10 of 60 resultsSorted by cheapest first
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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

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, January is the cheapest month in which you can book a flight from Region of Ontario to Washington, D.C. (average of $276). Flying from Region of Ontario to Washington, D.C. in December is currently the most expensive (average of $323). 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?

It’s typically best to fly out from Region of Ontario to Washington, D.C. in the afternoon. Doing so could potentially save you 31% on the flight price compared to flying in the evening, which is usually more expensive.

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

The most flights from CAON to WAS are scheduled on a Monday (27 on average). You will have fewer flight options on Sunday, 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.?

Airfare is below average for this route at the moment.
Region of Ontario to Washington, D.C. flights typically cost between $252 and $398 in November.
The cheapest round-trip price found within the last 5 days was $213 on Air Canada (Nov 26-Nov 29).

How far ahead should I book a flight from Region of Ontario to Washington, D.C.?

Booking 47 days in advance of your planned departure date is, on average, the best time to get cheap flights from Region of Ontario to Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

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. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

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

    Porter Airlines, Air Canada, and Delta can get you from Region of Ontario to Washington, D.C. in just under 1h 30m. Your travel time can differ by up to 2h 54m. 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 $111. However, be on the lookout for offers from Air Canada and American Airlines, 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 ANA (100%), Republic Airways (92%) and Copa Airlines (88%).

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

    On average you can expect to pay $691 for a flight from Region of Ontario to Washington, D.C.. The cheapest flight overall is $137 while the most popular route, (Toronto Pearson Intl - Washington, D.C. Reagan-National) is currently priced at $257.

  • 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, January is the cheapest month in which you can book a flight from Region of Ontario to Washington, D.C. (average of $276). Flying from Region of Ontario to Washington, D.C. in December is currently the most expensive (average of $323). 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
Arlington
Lanham
Reston
Herndon
Hyattsville
Springfield
Fairfax
Fredericksburg
Falls Church
Rockville
Towson
Silver Spring
Oxon Hill
Laurel
Hunt Valley
Clinton
Owings Mills
Waldorf

Browse thousands of different options on Cheapflights for your next trip

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

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$159Average$401FlexibilityNo cancel feeOn-time69%
Porter AirlinesCheapest$177Average$296FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$178Average$360FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$221Average$316FlexibilityNo cancel feeOn-time71%
DeltaCheapest$389Average$559FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$422Average$580FlexibilityNo cancel feeOn-time60%

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