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Washington, D.C.

$115+ 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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — WAS
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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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 June 12, 2025.

Round-trip from

$175
(Air Canada)

One-way from

$115
(Air Canada)

Popular in

June

Cheapest in

April

Average price

$304

Good round-trip deal

$181 or less

Good one-way deal

$123 or less
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. 4% potential increase in price ($11 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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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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 June 12, 2025.

This Air Canada deal was found by Cheapflights users on 6/12. 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.
Thu 7/38:10 amYYZ - DCA
1 stop3h 53mAir Canada
Sun 7/66:59 amDCA - YYZ
Nonstop1h 34mAir Canada
Deal found 6/12$175
This SmartFares deal was found by Cheapflights users on 6/12. 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.
Sun 8/108:45 amYTZ - IAD
Nonstop1h 31mPorter Airlines
Thu 8/144:10 pmIAD - YTZ
Nonstop1h 33mPorter Airlines
Deal found 6/12$175
This Air Canada deal was found by Cheapflights users on 6/12. 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.
Wed 7/28:10 amYYZ - IAD
Nonstop1h 27mAir Canada
Tue 7/89:35 amIAD - YYZ
1 stop7h 20mAir Canada
Deal found 6/12$175
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/79:00 amYYZ - IAD
1 stop11h 55mUnited Airlines
Wed 10/88:28 amIAD - YYZ
Nonstop1h 36mUnited Airlines
Deal found 6/11$178
This SmartFares deal was found by Cheapflights users on 6/12. 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.
Fri 7/118:45 amYTZ - IAD
Nonstop1h 31mAir Transat
Mon 7/144:10 pmIAD - YTZ
Nonstop1h 33mAir Transat
Deal found 6/12$181
This Air Canada deal was found by Cheapflights users on 6/11. 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.
Sat 9/63:25 pmYTZ - IAD
1 stop5h 40mAir Canada
Wed 9/179:45 amIAD - YTZ
1 stop5h 00mAir Canada
Deal found 6/11$207
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/16:15 amYYZ - DCA
1 stop6h 25mDelta
Wed 7/96:00 amDCA - YYZ
1 stop7h 40mDelta
Deal found 6/10$213
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/176:04 amYYZ - IAD
1 stop5h 58mDelta
Mon 7/215:23 pmIAD - YYZ
1 stop5h 35mDelta
Deal found 6/10$214
This American Airlines deal was found by Cheapflights users on 6/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1911:01 amYYZ - DCA
Nonstop1h 40mAmerican Airlines
Wed 9/102:54 pmDCA - YYZ
Nonstop1h 39mAmerican Airlines
Deal found 6/9$216
This Trip.com deal was found by Cheapflights users on 6/11. 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.
Tue 6/241:35 pmYTZ - IAD
Nonstop1h 31mMultiple Airlines
Tue 7/14:10 pmIAD - YTZ
Nonstop1h 33mMultiple Airlines
Deal found 6/11$225
This flygcity.se deal was found by Cheapflights users on 6/11. 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 flygcity.se is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/37:35 amYYZ - DCA
1 stop3h 58mMultiple Airlines
Sun 7/66:59 amDCA - YYZ
Nonstop1h 34mMultiple Airlines
Deal found 6/11$227
This United deal was found by Cheapflights users on 6/10. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2410:05 amYYZ - IAD
Nonstop1h 34mMultiple Airlines
Mon 7/282:25 pmIAD - YYZ
Nonstop1h 36mMultiple Airlines
Deal found 6/10$229

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 June 12, 2025.
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.

YYZ - DCA

YYZDCA

Toronto Pearson Intl

Thu 7/3

8:10 am-12:03 pm

1 stop3h 53m

Washington, D.C. Reagan-National

Sun 7/6

6:59 am-8:33 am

Nonstop1h 34m

$175

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Sun 8/10

8:45 am-10:16 am

Nonstop1h 31m

Washington, D.C. Dulles Intl

Thu 8/14

4:10 pm-5:43 pm

Nonstop1h 33m

$175

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Wed 7/2

8:10 am-9:37 am

Nonstop1h 27m

Washington, D.C. Dulles Intl

Tue 7/8

9:35 am-4:55 pm

1 stop7h 20m

$175

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Fri 7/11

8:45 am-10:16 am

Nonstop1h 31m

Washington, D.C. Dulles Intl

Mon 7/14

4:10 pm-5:43 pm

Nonstop1h 33m

$181

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Fri 7/11

1:25 pm-2:56 pm

Nonstop1h 31m

Washington, D.C. Dulles Intl

Mon 7/14

11:35 am-1:08 pm

Nonstop1h 33m

$184

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Sat 9/6

3:25 pm-9:05 pm

1 stop5h 40m

Washington, D.C. Dulles Intl

Wed 9/17

9:45 am-2:45 pm

1 stop5h 00m

$207

TorontoWashington, D.C.

YYZ - DCA

YYZDCA

Toronto Pearson Intl

Tue 7/1

6:15 am-12:40 pm

1 stop6h 25m

Washington, D.C. Reagan-National

Wed 7/9

6:00 am-1:40 pm

1 stop7h 40m

$213

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Thu 7/17

6:04 am-12:02 pm

1 stop5h 58m

Washington, D.C. Dulles Intl

Mon 7/21

5:23 pm-10:58 pm

1 stop5h 35m

$214

TorontoWashington, D.C.

YYZ - DCA

YYZDCA

Toronto Pearson Intl

Fri 7/4

7:35 am-11:33 am

1 stop3h 58m

Washington, D.C. Reagan-National

Fri 7/4

2:54 pm-10:29 am

1 stop19h 35m

$221

TorontoWashington, D.C.

YYZ - DCA

YYZDCA

Toronto Pearson Intl

Thu 7/3

7:35 am-11:33 am

1 stop3h 58m

Washington, D.C. Reagan-National

Sun 7/6

6:59 am-8:33 am

Nonstop1h 34m

$227

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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, August is the cheapest month in which you can book a flight from Region of Ontario to Washington, D.C. (average of $241). Flying from Region of Ontario to Washington, D.C. in March is currently the most expensive (average of $290). 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 June 12, 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 June 12, 2025.

The most flights from CAON to WAS are scheduled on a Wednesday (27 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (20 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 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 June 12, 2025.
Peruse reviews from past customers who have flown with Porter Airlines, Delta and Air Transat from Ontario to Washington, D.C. to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
288 reviews

Crew

8.7

Overall

8.0

Food

7.6

Comfort

8.1

Entertainment

7.0

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
Porter Airlines
8.0
Very good
288 reviews
Porter Airlines
8.0
Very good
288 reviews

Crew

8.7

Overall

8.0

Food

7.6

Comfort

8.1

Entertainment

7.0

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
Delta
8.0
Very good
7,946 reviews
Porter Airlines
8.0
Very good
288 reviews

Crew

8.7

Overall

8.0

Food

7.6

Comfort

8.1

Entertainment

7.0

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
Air Transat
7.8
Good
396 reviews
Porter Airlines
8.0
Very good
288 reviews

Crew

8.7

Overall

8.0

Food

7.6

Comfort

8.1

Entertainment

7.0

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
United Airlines
7.4
Good
8,790 reviews
Porter Airlines
8.0
Very good
288 reviews

Crew

8.7

Overall

8.0

Food

7.6

Comfort

8.1

Entertainment

7.0

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
American Airlines
7.2
Good
10,000 reviews
Porter Airlines
8.0
Very good
288 reviews

Crew

8.7

Overall

8.0

Food

7.6

Comfort

8.1

Entertainment

7.0

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!

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?

    The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $115. However, be on the lookout for offers from Air Transat and Porter 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..

  • 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, August is the cheapest month in which you can book a flight from Region of Ontario to Washington, D.C. (average of $241). Flying from Region of Ontario to Washington, D.C. in March is currently the most expensive (average of $290). 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 Ontario?

Book flights to Ontario if you plan to visit one of these locations
Arlington
Alexandria
Woodbridge
Tysons
Silver Spring
Linthicum Heights
Fredericksburg
Gaithersburg
Fairfax
Falls Church
Easton
Herndon
Towson
Bowie
Rockville
Reston
National Harbor
Springfield
Manassas
Dundalk

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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 Dulles Intl flights
Pearson Intl to Reagan-National flights
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Pierre Elliott Trudeau Intl to Reagan-National flights
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Québec City to Dulles Intl flights
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St. John's to Dulles Intl flights
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Kelowna to Reagan-National flights
Victoria to Reagan-National flights
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Fort McMurray to Reagan-National flights
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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$158Average$366FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$168Average$323FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$184Average$305FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$219Average$307FlexibilityNo cancel feeOn-time71%
DeltaCheapest$222Average$282FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$290Average$359FlexibilityNo cancel feeOn-time60%

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