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Cheap flights from Washington, D.C. to Ontario from C$ 64

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.
WAS — YYZ
25 Feb — 4 Mar1
1 adult

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

Keep the following information in mind while searching for Washington, D.C. to Ontario flight deals. Data was last updated 20 February 2025.

Round-trip from

C$ 256

One-way from

C$ 74

Popular in

August

Cheapest in

April

Average price

C$ 452

Good round-trip deal

C$ 186 or less

Good one-way deal

C$ 163 or less
28/3-31/3
  • 28/3-31/3
  • 2 total stops
  • 53h 38m total
  • Washington, D.C. to Ontario
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26/3
  • 26/3
  • 1 total stop
  • 17h 05m total
  • Washington, D.C. to Ontario
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (C$ 11 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals
Price to beat on a round-trip flight from Washington, D.C. (WAS) to Ontario.
Search Deals
Price to beat on a one-way flight from Washington, D.C. (WAS) to Ontario.
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Find flight deals from Washington, D.C. to Ontario

Cheapest flights from Washington, D.C. to Ontario
Explore the most affordable flight options available from Washington, D.C. to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 February 2025.

Tue 11/36:50 a.m.BWI - YYZ
1 stop17h 05mMultiple Airlines
Fri 14/32:55 p.m.YYZ - BWI
1 stop18h 20mMultiple Airlines
Deal found 19/2C$ 257
Wed 19/31:45 p.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Wed 19/38:55 p.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 19/2C$ 266
Tue 8/47:00 a.m.IAD - YTZ
Nonstop1h 30mMultiple Airlines
Tue 8/48:55 p.m.YTZ - IAD
Nonstop1h 29mMultiple Airlines
Deal found 20/2C$ 294
Tue 8/46:00 a.m.DCA - YYZ
1 stop6h 39mAir Canada
Tue 8/44:30 p.m.YYZ - DCA
Nonstop1h 33mAir Canada
Deal found 20/2C$ 310
Tue 8/412:40 p.m.IAD - YYZ
Nonstop1h 39mAir Canada
Tue 8/45:05 p.m.YYZ - IAD
1 stop4h 10mAir Canada
Deal found 20/2C$ 317
Wed 2/46:50 a.m.BWI - YUL
1 stop8h 05mMultiple Airlines
Sun 6/43:55 p.m.YUL - BWI
1 stop17h 20mMultiple Airlines
Deal found 19/2C$ 317
Wed 19/36:59 a.m.DCA - YYZ
Nonstop1h 35mMultiple Airlines
Wed 19/311:00 a.m.YYZ - DCA
1 stop4h 29mMultiple Airlines
Deal found 19/2C$ 328
Wed 19/312:37 p.m.IAD - YYZ
Nonstop1h 41mMultiple Airlines
Wed 19/34:20 p.m.YYZ - IAD
1 stop5h 03mMultiple Airlines
Deal found 19/2C$ 328
Sun 6/41:53 p.m.IAD - YTZ
1 stop5h 57mAir Canada
Sun 13/410:25 a.m.YTZ - IAD
1 stop4h 48mAir Canada
Deal found 20/2C$ 347
Sat 26/47:00 a.m.IAD - YTZ
Nonstop1h 30mAir Transat
Sun 27/48:55 p.m.YTZ - IAD
Nonstop1h 29mAir Transat
Deal found 20/2C$ 357
Tue 29/42:55 p.m.DCA - YYZ
Nonstop1h 40mAmerican Airlines
Sat 3/511:00 a.m.YYZ - DCA
Nonstop1h 40mAmerican Airlines
Deal found 20/2C$ 357
Sun 25/58:22 a.m.IAD - YYZ
Nonstop1h 42mUnited Airlines
Sun 25/512:05 p.m.YYZ - IAD
1 stop4h 21mUnited Airlines
Deal found 19/2C$ 358

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

Customize your flight search to find flights from Washington, D.C. to Ontario 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

Washington, D.C.

Fly to

Ontario

Route

Depart

Return

Price

BaltimoreToronto

BWI - YYZ

BWIYYZ

Baltimore/Washington

Tue 11/3

6:50 a.m.-11:55 p.m.

1 stop17h 05m

Toronto Pearson Intl

Fri 14/3

2:55 p.m.-9:15 a.m.

1 stop18h 20m

C$ 257

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Wed 19/3

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

Nonstop1h 30m

Toronto Island

Wed 19/3

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

Nonstop1h 29m

C$ 266

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Tue 8/4

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

Nonstop1h 30m

Toronto Island

Tue 8/4

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

Nonstop1h 29m

C$ 294

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Tue 8/4

6:00 a.m.-12:39 p.m.

1 stop6h 39m

Toronto Pearson Intl

Tue 8/4

4:30 p.m.-6:03 p.m.

Nonstop1h 33m

C$ 310

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Tue 8/4

12:40 p.m.-2:19 p.m.

Nonstop1h 39m

Toronto Pearson Intl

Tue 8/4

5:05 p.m.-9:15 p.m.

1 stop4h 10m

C$ 317

BaltimoreMontreal

BWI - YUL

BWIYUL

Baltimore/Washington

Wed 2/4

6:50 a.m.-2:55 p.m.

1 stop8h 05m

Montreal Pierre Elliott Trudeau Intl

Sun 6/4

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

1 stop17h 20m

C$ 317

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Wed 19/3

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

Nonstop1h 35m

Toronto Pearson Intl

Wed 19/3

11:00 a.m.-3:29 p.m.

1 stop4h 29m

C$ 328

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Wed 19/3

12:37 p.m.-2:18 p.m.

Nonstop1h 41m

Toronto Pearson Intl

Wed 19/3

4:20 p.m.-9:23 p.m.

1 stop5h 03m

C$ 328

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sun 6/4

1:53 p.m.-7:50 p.m.

1 stop5h 57m

Toronto Island

Sun 13/4

10:25 a.m.-3:13 p.m.

1 stop4h 48m

C$ 347

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sat 26/4

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

Nonstop1h 30m

Toronto Island

Sun 27/4

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

Nonstop1h 29m

C$ 357

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/2

Showing 1-10 of 60 results
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Best time to book a flight from Washington, D.C. to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Washington, D.C. 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 Washington, D.C. to Ontario

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

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Region of Ontario (average of C$ 167). Flying from Washington, D.C. to Region of Ontario in July is currently the most expensive (average of C$ 258). 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 WAS to ON?

Find hourly flight availability from Washington, D.C. to Ontario. 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.

When flying from Washington, D.C. to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Explore weekly flight availability from Washington, D.C. to Ontario. 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 WAS to CAON are scheduled on a Thursday (27 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (20 on average).

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Region of Ontario ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Region of Ontario, 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 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated 20 February 2025.
To help decide which airline to fly from Washington, D.C. to Ontario, see what other customers have to say about Alaska Airlines, Delta and Porter Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,692 reviews
Check prices

Food

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines
8.0
Very good
9,692 reviews
Alaska Airlines
8.0
Very good
9,692 reviews
Check prices

Food

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta
8.0
Very good
8,220 reviews
Alaska Airlines
8.0
Very good
9,692 reviews
Check prices

Food

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Porter Airlines
7.9
Good
276 reviews
Alaska Airlines
8.0
Very good
9,692 reviews
Check prices

Food

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

KLM
7.8
Good
1,333 reviews
Alaska Airlines
8.0
Very good
9,692 reviews
Check prices

Food

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Air Transat
7.8
Good
380 reviews
Alaska Airlines
8.0
Very good
9,692 reviews
Check prices

Food

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Ontario. 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 Washington, D.C. to Region of Ontario one-way?

    To fly one-way, consider booking your trip with Air Transat, which is currently one of the cheapest options available, starting at C$ 131. Porter Airlines flights start at C$ 138 while deals on Air Canada start at C$ 138 one-way.

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

    The most popular route from Washington, D.C. to Region of Ontario is Washington, D.C. Dulles Intl - Montreal Pierre Elliott Trudeau Intl. You may also consider Washington, D.C. Dulles Intl - Toronto Pearson Intl or Washington, D.C. Reagan-National - Toronto Pearson Intl.

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

    Before booking your flight to Region of Ontario from Washington, D.C., check out the most reliable airlines to get you to your destination on time: ANA (79%), Copa Airlines (78%), Air Canada( 77%).

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

    On average you can expect to pay C$ 700 for a flight from Washington, D.C. to Region of Ontario. The cheapest flight overall is C$ 127 while the most popular route, (Washington, D.C. Dulles Intl - Montreal Pierre Elliott Trudeau Intl) is currently priced at C$ 382.

  • Can I find deals for flights from Washington, D.C. to Ontario that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Ontario.

  • Can I find deals for business class flights from Washington, D.C. to Ontario?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Ontario 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 Washington, D.C. to Region of Ontario?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Region of Ontario (average of C$ 167). Flying from Washington, D.C. to Region of Ontario in July is currently the most expensive (average of C$ 258). 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

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Alternative routes for Washington, D.C. to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Pierre Elliott Trudeau Intl flights
Dulles Intl to Vancouver Intl flights
Dulles Intl to Pearson Intl flights
Dulles Intl to Calgary flights
Reagan-National to Pearson Intl flights
Reagan-National to Pierre Elliott Trudeau Intl flights
Reagan-National to Vancouver Intl flights
Dulles Intl to Toronto Island flights
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Dulles Intl to Ottawa flights
Reagan-National to Ottawa flights
Dulles Intl to Québec City flights
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Reagan-National to Toronto Island flights
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Reagan-National to Winnipeg flights
Dulles Intl to Kelowna flights
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Dulles Intl to Deer Lake flights
Reagan-National to Victoria flights
Dulles Intl to Hamilton flights
Dulles Intl to Sault Ste Marie flights
Dulles Intl to Regina flights
Reagan-National to Regina flights
Reagan-National to Nanaimo flights

Top 5 airlines flying from Washington, D.C. to Ontario

Discover the top 5 airlines that operate flights from Washington, D.C. to Ontario. 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
Air CanadaCheapestC$ 174AverageC$ 520FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapestC$ 175AverageC$ 443FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapestC$ 194AverageC$ 455FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Porter AirlinesCheapestC$ 287AverageC$ 547FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
WestJetCheapestC$ 484AverageC$ 621FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

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

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 Ontario from Washington, D.C. today with Cheapflights!

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

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

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Washington, D.C. to Ontario, users can toggle the no change fees filter when performing a flight search.

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

Of course! You can now track prices for flights from Washington, D.C. to Ontario and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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