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Washington, D.C.

$119+ Cheap flights from Ontario to Washington, D.C. (WAS)

YYZ — WAS
Oct 24 — Oct 311
Sat 10/24
Sat 10/31
1 adult, Economy
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Cheap flight deals from Ontario to Washington, D.C.

Cheapest flights from Ontario to Washington, D.C.

Fri 10/309:10 am -
Nonstop1h 28m
Mon 11/211:20 am -
Nonstop1h 32m
Deal found 9/19$179
Thu 10/228:20 am -
1 stop3h 49m
Wed 10/2812:55 pm -
1 stop5h 24m
Deal found 9/20$179
Sat 10/39:15 am -
Nonstop1h 30m
Sun 10/411:25 am -
Nonstop1h 30m
Deal found 9/19$180
Thu 10/158:20 am -
1 stop3h 49m
Sun 10/186:00 am -
1 stop5h 50m
Deal found 9/20$181
Mon 10/199:15 am -
Nonstop1h 30m
Thu 10/2911:20 am -
Nonstop1h 32m
Deal found 9/22$182
Thu 10/159:30 am -
1 stop5h 27m
Sun 10/189:45 am -
1 stop4h 35m
Deal found 9/20$183
Thu 10/159:15 am -
Nonstop1h 30m
Sun 10/183:50 pm -
Nonstop1h 30m
Deal found 9/22$186
Fri 12/189:10 am -
Nonstop1h 28m
Sun 12/2011:20 am -
Nonstop1h 32m
Deal found 9/20$187
Thu 10/158:00 am -
1 stop4h 09m
Sun 10/186:00 am -
1 stop5h 33m
Deal found 9/20$188
Thu 10/151:40 pm -
Nonstop1h 30m
Wed 11/1111:20 am -
Nonstop1h 32m
Deal found 9/19$188
Thu 10/221:55 pm -
Nonstop1h 30m
Wed 10/289:55 am -
Nonstop1h 27m
Deal found 9/20$188
Thu 10/229:15 am -
Nonstop1h 30m
Wed 10/2811:20 am -
Nonstop1h 32m
Deal found 9/21$189

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

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$179
(Cheapflightsfares)

One-way from

$119
(Cheapflightsfares)

Popular in

March

Cheapest in

November

Average price

$262

Good round-trip deal

$173 or less

Good one-way deal

$126 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. 9% potential increase in price ($28 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 September 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 - IAD Washington, D.C. Dulles Intl

YTZIAD

Toronto Island

Mon 10/19

1:40 pm-3:10 pm

Nonstop1h 30m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$119

TorontoWashington, D.C.

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

YTZDCA

Toronto Island

Fri 10/16

8:20 am-12:09 pm

1 stop3h 49m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$121
Quickest round-trip

TorontoWashington, D.C.

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

YTZIAD

Toronto Island

Wed 11/11

9:10 am-10:38 am

Nonstop1h 28m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$126

TorontoWashington, D.C.

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

YTZDCA

Toronto Island

Thu 11/5

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

$130

TorontoWashington, D.C.

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

YTZDCA

Toronto Island

Mon 11/2

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

$130

TorontoWashington, D.C.

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

YTZDCA

Toronto Island

Sat 11/7

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

$130

TorontoWashington, D.C.

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

YTZDCA

Toronto Island

Wed 11/4

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

$130

TorontoWashington, D.C.

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

YTZDCA

Toronto Island

Thu 11/26

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

$133

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

$133

TorontoWashington, D.C.

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

YTZIAD

Toronto Island

Thu 10/22

9:15 am-10:45 am

Nonstop1h 30m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$136

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/19

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, November is the cheapest month in which you can book a flight from Region of Ontario to Washington, D.C. (average of $275). Flying from Region of Ontario to Washington, D.C. in December is currently the most expensive (average of $324). 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 35% 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 Wednesday (30 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (17 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 $238 and $302 in October.
The cheapest round-trip price found within the last 5 days was $188 on Air Canada (Oct 15-Oct 18).

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

Booking 80 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.?

    United Airlines, Air Canada, and Porter Airlines 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 19m. 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 (84%), Copa Airlines (82%) and Republic Airways (82%).

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

    On average you can expect to pay $1,528 for a flight from Region of Ontario to Washington, D.C.. The cheapest flight overall is $129 while the most popular route, (Toronto Pearson Intl - Washington, D.C. Reagan-National) is currently priced at $196.

  • 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, November is the cheapest month in which you can book a flight from Region of Ontario to Washington, D.C. (average of $275). Flying from Region of Ontario to Washington, D.C. in December is currently the most expensive (average of $324). 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
Arlington
Owings Mills
Lanham
Tysons
Woodbridge
Reston
Herndon
Hyattsville
Rockville
Fredericksburg
Falls Church
Hanover
Laurel
Springfield
Oxon Hill
Clinton
Hunt Valley
Silver Spring
Largo

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$133Average$351FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$174Average$355FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$177Average$289FlexibilityNo cancel feeOn-time52%
American AirlinesCheapest$218Average$316FlexibilityNo cancel feeOn-time71%
DeltaCheapest$389Average$577FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$422Average$622FlexibilityNo cancel feeOn-time60%

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