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Cheap flights from District of Columbia to Ontario from C$ 109

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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YYZ
27 Apr — 4 May1
1 adult

Cheap flight deals from District of Columbia to Ontario

Keep the following information in mind while searching for District of Columbia to Ontario flight deals. Data was last updated 22 April 2025.

Round-trip from

C$ 249

One-way from

C$ 109

Popular in

August

Cheapest in

March

Average price

C$ 384

Good round-trip deal

C$ 164 or less

Good one-way deal

C$ 97 or less
Air Canada
  • Air Canada
  • 11/6-18/6
  • 1 total stop
  • 6h 17m total
  • District of Columbia to Ontario
Air Canada
  • Air Canada
  • 11/6
  • 1 total stop
  • 4h 05m total
  • District of Columbia to Ontario
Highest demand for flights based on searches. 2% potential increase in price (C$ 16 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease (C$ 7 potential savings vs. average RT price).
Average for round-trip flights in April 2025
Price to beat on a round-trip flight from District of Columbia to Ontario.
Price to beat on a one-way flight from District of Columbia to Ontario.

Find flight deals from District of Columbia to Ontario

Cheapest flights from District of Columbia to Ontario
Explore the most affordable flight options available from District of Columbia to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 April 2025.

Wed 11/64:20 p.m.IAD - YTZ
Nonstop1h 33mMultiple Airlines
Wed 18/64:20 p.m.YTZ - IAD
1 stop4h 44mMultiple Airlines
Deal found 21/4C$ 249
Thu 8/56:00 a.m.DCA - YYZ
1 stop4h 39mAir Canada
Sun 11/56:15 a.m.YYZ - DCA
1 stop4h 04mAir Canada
Deal found 20/4C$ 250
Mon 5/511:35 a.m.IAD - YTZ
Nonstop1h 33mPorter Airlines
Sat 17/51:35 p.m.YTZ - IAD
Nonstop1h 31mPorter Airlines
Deal found 20/4C$ 253
Wed 28/58:22 a.m.IAD - YYZ
Nonstop1h 42mAir Canada
Wed 28/512:05 p.m.YYZ - IAD
1 stop4h 10mAir Canada
Deal found 22/4C$ 258
Fri 9/512:55 p.m.DCA - YTZ
1 stop5h 42mAir Canada
Tue 13/510:25 a.m.YTZ - DCA
1 stop5h 24mAir Canada
Deal found 20/4C$ 285
Tue 13/58:15 a.m.IAD - YYZ
1 stop8h 48mMultiple Airlines
Tue 13/57:47 p.m.YYZ - IAD
Nonstop1h 38mMultiple Airlines
Deal found 21/4C$ 311
Mon 5/59:41 a.m.DCA - YYZ
1 stop7h 37mDelta
Tue 13/512:15 p.m.YYZ - DCA
1 stop3h 44mDelta
Deal found 20/4C$ 322
Fri 6/66:00 a.m.IAD - YYZ
1 stop5h 25mDelta
Mon 16/66:04 a.m.YYZ - IAD
1 stop5h 55mDelta
Deal found 22/4C$ 322
Thu 5/61:00 p.m.IAD - YTZ
1 stop7h 37mAir Canada
Thu 12/64:20 p.m.YTZ - IAD
1 stop4h 44mAir Canada
Deal found 21/4C$ 323
Tue 6/54:20 p.m.IAD - YUL
1 stop3h 50mPorter Airlines
Wed 7/510:45 a.m.YUL - IAD
1 stop4h 21mPorter Airlines
Deal found 20/4C$ 335
Sat 17/57:00 a.m.DCA - YYZ
1 stop5h 46mUnited Airlines
Sat 17/54:30 p.m.YYZ - DCA
Nonstop1h 33mUnited Airlines
Deal found 21/4C$ 348
Wed 21/510:10 p.m.IAD - YYZ
1 stop9h 30mUnited Airlines
Thu 22/510:05 a.m.YYZ - IAD
Nonstop1h 34mUnited Airlines
Deal found 22/4C$ 348

Cheapflights Fare Finder

Customize your flight search to find flights from District of Columbia 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 22 April 2025.
Use the filters below to find and compare flights from District of Columbia to Ontario that are best for you.

Fly from

District of Columbia

Fly to

Ontario

Route

Depart

Return

Price

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Wed 11/6

4:20 p.m.-5:53 p.m.

Nonstop1h 33m

Toronto Island

Wed 18/6

4:20 p.m.-9:04 p.m.

1 stop4h 44m

C$ 249

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 8/5

6:00 a.m.-10:39 a.m.

1 stop4h 39m

Toronto Pearson Intl

Sun 11/5

6:15 a.m.-10:19 a.m.

1 stop4h 04m

C$ 250

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Mon 5/5

11:35 a.m.-1:08 p.m.

Nonstop1h 33m

Toronto Island

Thu 15/5

8:45 a.m.-10:16 a.m.

Nonstop1h 31m

C$ 253

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Wed 28/5

8:22 a.m.-10:04 a.m.

Nonstop1h 42m

Toronto Pearson Intl

Wed 28/5

12:05 p.m.-4:15 p.m.

1 stop4h 10m

C$ 258

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Fri 9/5

12:55 p.m.-6:37 p.m.

1 stop5h 42m

Toronto Island

Tue 13/5

10:25 a.m.-3:49 p.m.

1 stop5h 24m

C$ 285

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Tue 13/5

8:15 a.m.-5:03 p.m.

1 stop8h 48m

Toronto Pearson Intl

Tue 13/5

7:47 p.m.-9:25 p.m.

Nonstop1h 38m

C$ 311

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Mon 5/5

9:41 a.m.-5:18 p.m.

1 stop7h 37m

Toronto Pearson Intl

Tue 13/5

12:15 p.m.-3:59 p.m.

1 stop3h 44m

C$ 322

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Fri 6/6

6:00 a.m.-11:25 a.m.

1 stop5h 25m

Toronto Pearson Intl

Mon 16/6

6:04 a.m.-11:59 a.m.

1 stop5h 55m

C$ 322

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 5/6

1:00 p.m.-8:37 p.m.

1 stop7h 37m

Toronto Island

Thu 12/6

4:20 p.m.-9:04 p.m.

1 stop4h 44m

C$ 323

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Tue 6/5

4:20 p.m.-8:10 p.m.

1 stop3h 50m

Montreal Pierre Elliott Trudeau Intl

Wed 7/5

10:45 a.m.-3:06 p.m.

1 stop4h 21m

C$ 335

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/4

Showing 1-10 of 60 results
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Best time to book a flight from District of Columbia to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from District of Columbia 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 District of Columbia to Ontario

What is the cheapest month to book a flight from District of Columbia to Region of Ontario?

Currently, January is the cheapest month in which you can book a flight from District of Columbia to Region of Ontario (average of C$ 167). Flying from District of Columbia 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 DC to ON?

Find hourly flight availability from District of Columbia 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 22 April 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from District of Columbia to Region of Ontario as you normally would.

Weekly flight availability from District of Columbia to Region of Ontario

Explore weekly flight availability from District of Columbia 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 22 April 2025.

The most flights from USDC to CAON are scheduled on a Monday (21 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (17 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 22 April 2025.
To help decide which airline to fly from District of Columbia to Ontario, see what other customers have to say about Porter Airlines, Delta and Air Transat. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.8

Food

7.6

Overall

8.0

Boarding

8.2

Comfort

8.1

Entertainment

7.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you

Crew

8.8

Food

7.6

Overall

8.0

Boarding

8.2

Comfort

8.1

Entertainment

7.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
8.0
Very good

Crew

8.8

Food

7.6

Overall

8.0

Boarding

8.2

Comfort

8.1

Entertainment

7.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you

Crew

8.8

Food

7.6

Overall

8.0

Boarding

8.2

Comfort

8.1

Entertainment

7.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you

Crew

8.8

Food

7.6

Overall

8.0

Boarding

8.2

Comfort

8.1

Entertainment

7.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you

Crew

8.8

Food

7.6

Overall

8.0

Boarding

8.2

Comfort

8.1

Entertainment

7.0

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you

Related info for your journey

Find useful and relevant information for your journey from District of Columbia 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 District of Columbia to Region of Ontario one-way?

    One-way options have recently been found by users for as low as C$ 109 on Air Canada. Other airlines that offer cheap prices include APG Airlines from C$ 118 and Air Transat from C$ 123 one-way.

  • Can I find deals for flights from District of Columbia to Ontario that include hotel bookings?

    Yes. In addition to deals on District of Columbia to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from District of Columbia to Ontario?

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

  • Can I find deals for business class flights from District of Columbia to Ontario?

    Yes. Cheapflights offers flight deals from District of Columbia 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 District of Columbia to Region of Ontario?

    Currently, January is the cheapest month in which you can book a flight from District of Columbia to Region of Ontario (average of C$ 167). Flying from District of Columbia 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 District of Columbia to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from District of Columbia to Ontario

Discover the top 5 airlines that operate flights from District of Columbia 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 22 April 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 157AverageC$ 403FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 169AverageC$ 499FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapestC$ 170AverageC$ 431FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Porter AirlinesCheapestC$ 244AverageC$ 500FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
WestJetCheapestC$ 471AverageC$ 626FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from District of Columbia to Ontario?

Deals for District of Columbia to Ontario flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from District of Columbia to Ontario?

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

Can Cheapflights find flights from District of Columbia to Ontario with no change fees?

Yes! Cheapflights helps users easily find flights from District of Columbia to Ontario with no change fees.

Can Cheapflights notify me if prices for flights from District of Columbia to Ontario become cheaper?

Yes, Cheapflights offers price alerts on District of Columbia to Ontario flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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