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Cheap flights from Ontario to Washington, D.C. from C$ 70

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 26/3. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — WAS
25 Feb — 4 Mar1
1 adult

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 20 February 2025.

Round-trip from

C$ 259

One-way from

C$ 70

Popular in

May

Cheapest in

March

Average price

C$ 366

Good round-trip deal

C$ 267 or less

Good one-way deal

C$ 176 or less
Porter Airlines
  • Porter Airlines
  • 13/3-17/3
  • Nonstop
  • 2h 59m total
  • Ontario to Washington, D.C.
Air Canada
  • Air Canada
  • 26/3
  • Nonstop
  • 1h 50m total
  • Ontario to Washington, D.C.
Highest demand for flights based on searches. 2% potential increase in price (C$ 13 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease (C$ 6 potential savings vs. average RT price).
Average for round-trip flights in February 2025
Price to beat on a round-trip flight from Ontario to Washington, D.C. (WAS).
Price to beat on a one-way flight from Ontario to Washington, D.C. (WAS).

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 20 February 2025.

Sun 23/38:55 p.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Tue 25/31:45 p.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Deal found 19/2C$ 264
Wed 19/38:55 p.m.YTZ - IAD
Nonstop1h 29mAir Transat
Wed 26/37:00 a.m.IAD - YTZ
Nonstop1h 30mAir Transat
Deal found 19/2C$ 273
Tue 1/48:55 p.m.YYZ - DCA
Nonstop1h 33mAir Canada
Wed 2/48:40 p.m.DCA - YYZ
Nonstop1h 33mAir Canada
Deal found 19/2C$ 274
Tue 1/46:15 a.m.YYZ - IAD
Nonstop1h 40mAir Canada
Tue 8/410:19 p.m.IAD - YYZ
Nonstop1h 35mAir Canada
Deal found 18/2C$ 274
Tue 1/47:25 a.m.YTZ - IAD
1 stop5h 47mAir Canada
Tue 8/43:55 p.m.IAD - YTZ
1 stop5h 40mAir Canada
Deal found 19/2C$ 280
Tue 4/37:40 p.m.YYZ - IAD
Nonstop1h 43mUnited Airlines
Wed 5/38:25 a.m.IAD - YYZ
1 stop4h 32mUnited Airlines
Deal found 20/2C$ 280
Tue 1/47:00 a.m.YYZ - IAD
1 stop8h 47mMultiple Airlines
Tue 8/44:32 p.m.IAD - YYZ
1 stop7h 29mMultiple Airlines
Deal found 19/2C$ 298
Tue 1/43:55 p.m.YUL - BWI
1 stop17h 20mMultiple Airlines
Tue 8/46:16 p.m.BWI - YUL
1 stop20h 39mMultiple Airlines
Deal found 20/2C$ 304
Fri 14/37:20 a.m.YYZ - DCA
Nonstop1h 37mUnited Airlines
Thu 20/36:59 a.m.DCA - YYZ
Nonstop1h 35mUnited Airlines
Deal found 19/2C$ 307
Fri 2/55:25 p.m.YYZ - DCA
Nonstop1h 45mAmerican Airlines
Mon 5/510:02 a.m.DCA - YYZ
Nonstop1h 55mAmerican Airlines
Deal found 20/2C$ 312
Sat 12/410:00 a.m.YYZ - BWI
2 stops11h 56mDelta
Thu 24/47:00 a.m.BWI - YYZ
1 stop10h 10mDelta
Deal found 20/2C$ 320
Fri 14/35:05 p.m.YYZ - DCA
1 stop5h 44mDelta
Thu 20/34:25 p.m.DCA - YYZ
1 stop6h 34mDelta
Deal found 20/2C$ 321

Find flights from Ontario to Washington, D.C. within your budget

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 629,999 searches. Data last updated 20 February 2025.

Fly from

Ontario

Fly to

Washington, D.C.

Route

Depart

Return

Price

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Sun 23/3

8:55 p.m.-10:24 p.m.

Nonstop1h 29m

Washington, D.C. Dulles Intl

Tue 25/3

1:45 p.m.-3:15 p.m.

Nonstop1h 30m

C$ 264

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Wed 19/3

8:55 p.m.-10:24 p.m.

Nonstop1h 29m

Washington, D.C. Dulles Intl

Wed 26/3

7:00 a.m.-8:30 a.m.

Nonstop1h 30m

C$ 273

TorontoWashington, D.C.

YYZ - DCA

YYZDCA

Toronto Pearson Intl

Tue 1/4

8:55 p.m.-10:28 p.m.

Nonstop1h 33m

Washington, D.C. Reagan-National

Wed 2/4

8:40 p.m.-10:13 p.m.

Nonstop1h 33m

C$ 274

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Tue 1/4

6:15 a.m.-7:55 a.m.

Nonstop1h 40m

Washington, D.C. Dulles Intl

Tue 8/4

10:19 p.m.-11:54 p.m.

Nonstop1h 35m

C$ 274

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Tue 4/3

7:40 p.m.-9:23 p.m.

Nonstop1h 43m

Washington, D.C. Dulles Intl

Wed 5/3

8:25 a.m.-12:57 p.m.

1 stop4h 32m

C$ 280

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Tue 1/4

7:25 a.m.-1:12 p.m.

1 stop5h 47m

Washington, D.C. Dulles Intl

Tue 8/4

3:55 p.m.-9:35 p.m.

1 stop5h 40m

C$ 280

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Tue 1/4

7:00 a.m.-3:47 p.m.

1 stop8h 47m

Washington, D.C. Dulles Intl

Tue 8/4

4:32 p.m.-12:01 a.m.

1 stop7h 29m

C$ 298

MontrealBaltimore

YUL - BWI

YULBWI

Montreal Pierre Elliott Trudeau Intl

Tue 1/4

3:55 p.m.-9:15 a.m.

1 stop17h 20m

Baltimore/Washington

Tue 8/4

6:16 p.m.-2:55 p.m.

1 stop20h 39m

C$ 304

TorontoWashington, D.C.

YYZ - DCA

YYZDCA

Toronto Pearson Intl

Fri 14/3

7:20 a.m.-8:57 a.m.

Nonstop1h 37m

Washington, D.C. Reagan-National

Thu 20/3

6:59 a.m.-8:34 a.m.

Nonstop1h 35m

C$ 307

TorontoWashington, D.C.

YYZ - DCA

YYZDCA

Toronto Pearson Intl

Fri 2/5

5:25 p.m.-7:10 p.m.

Nonstop1h 45m

Washington, D.C. Reagan-National

Mon 5/5

10:02 a.m.-11:57 a.m.

Nonstop1h 55m

C$ 312

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/2

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.

Travel insights for flights from Ontario to Washington, D.C.

Get recent, data-driven insights about flights from Ontario to Washington, D.C. including ideal travel times, pricing trends, and more.

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

Currently, February is the cheapest month in which you can book a flight from Region of Ontario to Washington, D.C. (average of C$ 256). Flying from Region of Ontario to Washington, D.C. in October is currently the most expensive (average of C$ 352). 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 20 February 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 20 February 2025.

The most flights from CAON to WAS are scheduled on a Wednesday (27 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (18 on average).

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. ranges from 66.0 - 102.0 mm per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. when rainfall is around 66.0 mm.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 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 20 February 2025.
Read through reviews of airlines operating flights from Ontario to Washington, D.C., such as Delta, Porter Airlines and Air Transat. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

8.0
Very good

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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?

    To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at C$ 70. Porter Airlines flights start at C$ 173 while deals on Air Transat start at C$ 175 one-way.

  • What are the most popular routes 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 (88%), Republic Airways (83%), Copa Airlines( 78%).

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

    On average you can expect to pay C$ 1,276 for a flight from Region of Ontario to Washington, D.C.. The cheapest flight overall is C$ 200 while the most popular route, (Toronto Pearson Intl - Washington, D.C. Dulles Intl) is currently priced at C$ 253.

  • 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, February is the cheapest month in which you can book a flight from Region of Ontario to Washington, D.C. (average of C$ 256). Flying from Region of Ontario to Washington, D.C. in October is currently the most expensive (average of C$ 352). 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 Ontario?

Book flights to Ontario if you plan to visit one of these locations
Herndon
Arlington
Hanover
Fairfax
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Top 8 airlines flying from Ontario to Washington, D.C.

Discover the top 8 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 629,999 searches. Data last updated 20 February 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 212AverageC$ 627FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Porter AirlinesCheapestC$ 233AverageC$ 365FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
American AirlinesCheapestC$ 273AverageC$ 493FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapestC$ 286AverageC$ 590FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air TransatCheapestC$ 309AverageC$ 405FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
DeltaCheapestC$ 323AverageC$ 382FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
WestJetCheapestC$ 407AverageC$ 576FlexibilityNo cancel feeOn-time60%
Search WestJet flights
WestJet EncoreCheapestC$ 453AverageC$ 614FlexibilityNo cancel feeOn-timeN/A
Search WestJet Encore flights

Fly with Cheapflights

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

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

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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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