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Cheap flights from District of Columbia to Ontario from C$ 126

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 16/5. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YYZ
2 Apr — 9 Apr1
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 28 March 2025.

Round-trip from

C$ 257

One-way from

C$ 126

Popular in

August

Cheapest in

April

Average price

C$ 465

Good round-trip deal

C$ 249 or less

Good one-way deal

C$ 171 or less
United Airlines
  • United Airlines
  • 29/5-29/5
  • 1 total stop
  • 4h 36m total
  • District of Columbia to Ontario
Porter Airlines
  • Porter Airlines
  • 16/5
  • Nonstop
  • 1h 33m total
  • District of Columbia to Ontario
Highest demand for flights based on searches. 1% potential increase in price (C$ 6 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease (C$ 8 potential savings vs. average RT price).
Average for round-trip flights in March 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 28 March 2025.

Thu 29/52:25 p.m.IAD - YYZ
Nonstop1h 34mUnited Airlines
Thu 29/56:20 p.m.YYZ - IAD
1 stop3h 02mUnited Airlines
Deal found 27/3C$ 257
Mon 12/511:35 a.m.IAD - YTZ
Nonstop1h 33mPorter Airlines
Sun 8/68:45 a.m.YTZ - IAD
Nonstop1h 31mPorter Airlines
Deal found 27/3C$ 259
Sun 1/66:00 a.m.DCA - YYZ
1 stop4h 39mAir Canada
Sat 7/68:10 a.m.YYZ - DCA
1 stop3h 51mAir Canada
Deal found 27/3C$ 263
Wed 14/511:00 a.m.DCA - YYZ
Nonstop1h 33mUnited Airlines
Fri 6/64:30 p.m.YYZ - DCA
Nonstop1h 33mUnited Airlines
Deal found 27/3C$ 267
Sun 11/58:25 a.m.IAD - YYZ
Nonstop1h 39mAir Canada
Sat 17/512:30 a.m.YYZ - IAD
1 stop11h 03mAir Canada
Deal found 27/3C$ 269
Sun 11/511:35 a.m.IAD - YUL
1 stop4h 25mMultiple Airlines
Sun 18/59:15 a.m.YUL - IAD
1 stop4h 26mMultiple Airlines
Deal found 27/3C$ 270
Sat 19/44:07 p.m.IAD - YTZ
1 stop5h 28mAir Canada
Tue 22/44:20 p.m.YTZ - IAD
1 stop4h 55mAir Canada
Deal found 26/3C$ 273
Mon 5/59:40 a.m.DCA - YTZ
1 stop7h 10mAir Canada
Sat 10/53:25 p.m.YTZ - DCA
1 stop6h 28mAir Canada
Deal found 26/3C$ 273
Wed 14/56:59 a.m.DCA - YYZ
Nonstop1h 33mMultiple Airlines
Sat 7/65:00 p.m.YYZ - DCA
1 stop4h 53mMultiple Airlines
Deal found 27/3C$ 276
Wed 14/58:25 a.m.IAD - YYZ
Nonstop1h 39mMultiple Airlines
Sat 7/64:00 p.m.YYZ - IAD
1 stop5h 04mMultiple Airlines
Deal found 27/3C$ 276
Thu 24/47:00 a.m.IAD - YUL
1 stop4h 15mPorter Airlines
Sun 27/46:40 p.m.YUL - IAD
1 stop3h 44mPorter Airlines
Deal found 27/3C$ 280
Thu 12/64:20 p.m.IAD - YTZ
Nonstop1h 33mAir Transat
Sun 15/61:35 p.m.YTZ - IAD
Nonstop1h 31mAir Transat
Deal found 27/3C$ 289

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 28 March 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 - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Thu 29/5

2:25 p.m.-3:59 p.m.

Nonstop1h 34m

Toronto Pearson Intl

Thu 29/5

6:20 p.m.-9:22 p.m.

1 stop3h 02m

C$ 257

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Mon 12/5

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

Nonstop1h 33m

Toronto Island

Sun 8/6

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

Nonstop1h 31m

C$ 259

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Sun 1/6

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

1 stop4h 39m

Toronto Pearson Intl

Sat 7/6

8:10 a.m.-12:01 p.m.

1 stop3h 51m

C$ 263

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Wed 14/5

11:00 a.m.-12:33 p.m.

Nonstop1h 33m

Toronto Pearson Intl

Fri 6/6

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

Nonstop1h 33m

C$ 267

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Sun 11/5

8:25 a.m.-10:04 a.m.

Nonstop1h 39m

Toronto Pearson Intl

Sat 17/5

12:30 a.m.-11:33 a.m.

1 stop11h 03m

C$ 269

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Sun 11/5

11:35 a.m.-4:00 p.m.

1 stop4h 25m

Montreal Pierre Elliott Trudeau Intl

Sun 18/5

9:15 a.m.-1:41 p.m.

1 stop4h 26m

C$ 270

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sat 19/4

4:07 p.m.-9:35 p.m.

1 stop5h 28m

Toronto Island

Tue 22/4

4:20 p.m.-9:15 p.m.

1 stop4h 55m

C$ 273

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Mon 5/5

9:40 a.m.-4:50 p.m.

1 stop7h 10m

Toronto Island

Sat 10/5

3:25 p.m.-9:53 p.m.

1 stop6h 28m

C$ 273

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Wed 14/5

6:59 a.m.-8:32 a.m.

Nonstop1h 33m

Toronto Pearson Intl

Fri 23/5

9:00 a.m.-3:49 p.m.

1 stop6h 49m

C$ 276

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Wed 14/5

8:25 a.m.-10:04 a.m.

Nonstop1h 39m

Toronto Pearson Intl

Sat 7/6

4:00 p.m.-9:04 p.m.

1 stop5h 04m

C$ 276

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/3

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 28 March 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.

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 28 March 2025.
To help decide which airline to fly from District of Columbia to Ontario, see what other customers have to say about Delta, Porter Airlines and KLM. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Comfort

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Comfort

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Comfort

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Comfort

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Comfort

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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$ 126 on Porter Airlines. Other airlines that offer cheap prices include Delta from C$ 127 and Air Canada from C$ 129 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

Browse thousands of different options on Cheapflights for your next trip

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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 28 March 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 175AverageC$ 521FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapestC$ 176AverageC$ 445FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapestC$ 195AverageC$ 464FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Porter AirlinesCheapestC$ 289AverageC$ 537FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
WestJetCheapestC$ 487AverageC$ 652FlexibilityNo 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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