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Cheap flights from Ontario to Washington, D.C. from C$ 168

YYZ — WAS
24 Oct — 31 Oct1
1 adult
1 adult, Economy, 0 bags

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

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to Washington, D.C.

Fri 30/109:10 a.m. -
Nonstop1h 28m
Mon 2/1111:20 a.m. -
Nonstop1h 32m
Deal found 19/9C$ 252
Thu 22/108:20 a.m. -
1 stop3h 49m
Wed 28/1012:55 p.m. -
1 stop5h 24m
Deal found 20/9C$ 252
Sat 3/109:15 a.m. -
Nonstop1h 30m
Sun 4/1011:25 a.m. -
Nonstop1h 30m
Deal found 19/9C$ 254
Thu 15/108:20 a.m. -
1 stop3h 49m
Sun 18/106:00 a.m. -
1 stop5h 50m
Deal found 20/9C$ 255
Mon 19/109:15 a.m. -
Nonstop1h 30m
Thu 29/1011:20 a.m. -
Nonstop1h 32m
Deal found 22/9C$ 256
Thu 15/109:30 a.m. -
1 stop5h 27m
Sun 18/109:45 a.m. -
1 stop4h 35m
Deal found 20/9C$ 258
Thu 15/109:15 a.m. -
Nonstop1h 30m
Sun 18/103:50 p.m. -
Nonstop1h 30m
Deal found 22/9C$ 262
Fri 18/129:10 a.m. -
Nonstop1h 28m
Sun 20/1211:20 a.m. -
Nonstop1h 32m
Deal found 20/9C$ 263
Thu 15/108:00 a.m. -
1 stop4h 09m
Sun 18/106:00 a.m. -
1 stop5h 33m
Deal found 20/9C$ 265
Thu 15/101:40 p.m. -
Nonstop1h 30m
Wed 11/1111:20 a.m. -
Nonstop1h 32m
Deal found 20/9C$ 265
Thu 22/101:55 p.m. -
Nonstop1h 30m
Wed 28/109:55 a.m. -
Nonstop1h 27m
Deal found 20/9C$ 265
Thu 22/109:15 a.m. -
Nonstop1h 30m
Wed 28/1011:20 a.m. -
Nonstop1h 32m
Deal found 21/9C$ 266

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

Round-trip from

C$ 252

One-way from

C$ 168

Popular in

March

Cheapest in

November

Average price

C$ 369

Good round-trip deal

C$ 293 or less

Good one-way deal

C$ 165 or less
Porter Airlines
  • Porter Airlines
  • 30/10-2/11
  • Nonstop
  • 3h 00m total
  • Ontario to Washington, D.C.
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Porter Airlines
  • Porter Airlines
  • 22/11-31/12
  • Nonstop
  • 1h 28m total
  • Ontario to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 56 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 13 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 - DCA Washington, D.C. Reagan-National

YTZDCA

Toronto Island

Fri 16/10

8:20 a.m.-12:09 p.m.

1 stop3h 49m

Washington, D.C. Reagan-National

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 170

TorontoWashington, D.C.

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

YTZDCA

Toronto Island

Sun 22/11

8:20 a.m.-12:19 p.m.

1 stop3h 59m

Washington, D.C. Reagan-National

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 170

TorontoWashington, D.C.

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

YTZDCA

Toronto Island

Thu 15/10

8:20 a.m.-12:09 p.m.

1 stop3h 49m

Washington, D.C. Reagan-National

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 170

TorontoWashington, D.C.

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

YYZIAD

Toronto Pearson Intl

Wed 18/11

2:45 p.m.-4:24 p.m.

Nonstop1h 39m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 176
Quickest round-trip

TorontoWashington, D.C.

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

YTZIAD

Toronto Island

Thu 5/11

9:10 a.m.-10:38 a.m.

Nonstop1h 28m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 183

TorontoWashington, D.C.

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

YTZDCA

Toronto Island

Sat 7/11

8:20 a.m.-12:19 p.m.

1 stop3h 59m

Washington, D.C. Reagan-National

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 183

TorontoWashington, D.C.

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

YTZDCA

Toronto Island

Mon 2/11

8:20 a.m.-12:19 p.m.

1 stop3h 59m

Washington, D.C. Reagan-National

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 183

TorontoWashington, D.C.

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

YTZDCA

Toronto Island

Sun 1/11

8:20 a.m.-12:19 p.m.

1 stop3h 59m

Washington, D.C. Reagan-National

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 183

TorontoWashington, D.C.

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

YYZIAD

Toronto Pearson Intl

Thu 22/10

9:44 a.m.-11:21 a.m.

Nonstop1h 37m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 193

TorontoWashington, D.C.

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

YYZIAD

Toronto Pearson Intl

Tue 3/11

7:44 p.m.-9:26 p.m.

Nonstop1h 42m

Washington, D.C. Dulles Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 196

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/9

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 C$ 387). Flying from Region of Ontario to Washington, D.C. in December is currently the most expensive (average of C$ 456). 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 30% on the flight price compared to flying at noon, 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 C$ 335 and C$ 425 in October.
The cheapest round-trip price found within the last 5 days was C$ 265 on Air Canada (15 Oct-18 Oct).

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 Tuesday 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.

Related info for your journey

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

    Departing from Region of Ontario to Washington, D.C. will take you 1h 30m. The distance between Region of Ontario and Washington, D.C. is about 546 km. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Region of Ontario to Washington, D.C. one-way?

    To fly one-way, consider booking your trip with Porter Airlines, which is currently one of the cheapest options available, starting at C$ 157. United Airlines flights start at C$ 194 while deals on Air Canada start at C$ 195 one-way.

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

    While some choose either Toronto Pearson Intl - Washington, D.C. Dulles Intl or Toronto Island - Washington, D.C. Dulles Intl, Toronto Pearson Intl - Washington, D.C. Reagan-National is the most popular route from Region of Ontario to Washington, D.C..

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

    Before booking your flight to Washington, D.C. from Region of Ontario, check out the most reliable airlines to get you to your destination on time: ANA (84%), Copa Airlines (82%), Republic Airways( 82%).

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

    On average you can expect to pay C$ 2,672 for a flight from Region of Ontario to Washington, D.C.. The cheapest flight overall is C$ 230 while the most popular route, (Toronto Pearson Intl - Washington, D.C. Reagan-National) is currently priced at C$ 299.

  • 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 C$ 387). Flying from Region of Ontario to Washington, D.C. in December is currently the most expensive (average of C$ 456). 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

Travelling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Silver Spring
Alexandria
Hanover
Oxon Hill
Gaithersburg
Reston
Herndon
Ellicott City
Arlington
Fredericksburg
Rockville

Browse thousands of different options on Cheapflights for your next trip

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

AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 114AverageC$ 487FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 236AverageC$ 385FlexibilityNo cancel feeOn-time52%
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American AirlinesCheapestC$ 243AverageC$ 478FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapestC$ 262AverageC$ 570FlexibilityNo cancel feeOn-time69%
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Air TransatCheapestC$ 290AverageC$ 528FlexibilityNo cancel feeOn-time50%
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WestJetCheapestC$ 681AverageC$ 850FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

How does Cheapflights help users find flights from Ontario to Washington, D.C.?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Washington, D.C. from Ontario today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Ontario to Washington, D.C.?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Ontario to Washington, D.C. for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Ontario to Washington, D.C. with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ontario to Washington, D.C. flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Ontario to Washington, D.C. become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Washington, D.C. from Ontario today and book when prices fit your budget.

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