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Cheap flights from District of Columbia to Ontario from C$ 122

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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YYZ
28 Feb — 7 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from District of Columbia to Ontario

Enter your travel dates to find the best prices.

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 29 January 2026.

Fri 13/38:40 p.m.
DCA
-
YYZ
Nonstop1h 37m
Air Canada
Fri 20/37:20 a.m.
YYZ
-
DCA
Nonstop1h 35m
Air Canada
Deal found 26/1C$ 243
Fri 13/39:00 a.m.
IAD
-
YYZ
Nonstop1h 29m
Air Canada
Fri 20/36:55 p.m.
YYZ
-
IAD
Nonstop1h 31m
Air Canada
Deal found 27/1C$ 250
Mon 30/38:40 p.m.
DCA
-
YYZ
Nonstop1h 32m
Air Canada
Sat 4/47:20 a.m.
YYZ
-
DCA
Nonstop1h 33m
Air Canada
Deal found 28/1C$ 267
Thu 19/312:55 p.m.
DCA
-
YYZ
1 stop6h 31m
Air Canada
Wed 25/34:30 p.m.
YYZ
-
DCA
Nonstop1h 35m
Air Canada
Deal found 28/1C$ 269
Fri 20/26:30 p.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Sun 22/23:45 p.m.
YTZ
-
IAD
Nonstop1h 29m
Porter Airlines
Deal found 27/1C$ 270
Thu 19/312:55 p.m.
DCA
-
YYZ
1 stop6h 31m
Air Canada
Tue 24/38:15 a.m.
YYZ
-
DCA
1 stop4h 04m
Air Canada
Deal found 28/1C$ 272
Mon 2/311:40 a.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Sat 7/311:00 a.m.
YTZ
-
IAD
Nonstop1h 29m
Porter Airlines
Deal found 28/1C$ 273
Fri 27/26:30 p.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Sat 28/311:00 a.m.
YTZ
-
IAD
Nonstop1h 29m
Porter Airlines
Deal found 28/1C$ 274
Thu 19/211:40 a.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Sun 22/23:45 p.m.
YTZ
-
IAD
Nonstop1h 29m
Porter Airlines
Deal found 28/1C$ 276
Thu 19/36:00 a.m.
DCA
-
YYZ
2 stops7h 20m
Air Canada
Mon 23/38:15 a.m.
YYZ
-
DCA
1 stop4h 04m
Air Canada
Deal found 28/1C$ 276
Mon 30/39:00 a.m.
IAD
-
YYZ
Nonstop1h 28m
Air Canada
Sat 4/45:30 p.m.
YYZ
-
IAD
1 stop3h 48m
Air Canada
Deal found 28/1C$ 276
Fri 20/26:30 p.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Mon 23/28:50 a.m.
YTZ
-
IAD
Nonstop1h 32m
Porter Airlines
Deal found 27/1C$ 277

Find 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 29 January 2026.

Round-trip from

C$ 243

One-way from

C$ 122

Popular in

November

Cheapest in

June

Average price

C$ 384

Good round-trip deal

C$ 106 or less

Good one-way deal

C$ 137 or less
Air Canada
  • Air Canada
  • 13/3-20/3
  • Nonstop
  • 3h 12m total
  • District of Columbia to Ontario
Search Deals
Air Canada
  • Air Canada
  • 12/4
  • Nonstop
  • 1h 34m total
  • District of Columbia to Ontario
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 32 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from District of Columbia to Ontario.
Search Deals
Price to beat on a one-way flight from District of Columbia to Ontario.
Search Deals

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 29 January 2026.
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 25/2

11:40 a.m.-1:10 p.m.

Nonstop1h 30m

Toronto Island

Mon 2/3

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

Nonstop1h 29m

C$ 276

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sat 28/2

1:50 p.m.-3:20 p.m.

Nonstop1h 30m

Toronto Island

Wed 25/3

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

Nonstop1h 29m

C$ 280

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 26/2

11:40 a.m.-1:10 p.m.

Nonstop1h 30m

Toronto Island

Wed 25/3

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

Nonstop1h 29m

C$ 280

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 26/2

11:40 a.m.-1:10 p.m.

Nonstop1h 30m

Toronto Island

Mon 30/3

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

Nonstop1h 29m

C$ 281

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Fri 20/2

6:30 p.m.-8:00 p.m.

Nonstop1h 30m

Toronto Island

Mon 23/2

8:50 a.m.-10:22 a.m.

Nonstop1h 32m

C$ 281

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 19/2

11:40 a.m.-1:10 p.m.

Nonstop1h 30m

Toronto Island

Fri 20/2

3:45 p.m.-5:14 p.m.

Nonstop1h 29m

C$ 281

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Wed 18/2

11:40 a.m.-1:10 p.m.

Nonstop1h 30m

Toronto Island

Mon 23/2

8:50 a.m.-10:22 a.m.

Nonstop1h 32m

C$ 281

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Wed 18/2

11:40 a.m.-1:10 p.m.

Nonstop1h 30m

Toronto Island

Sat 21/2

11:05 a.m.-12:34 p.m.

Nonstop1h 29m

C$ 281

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 19/2

11:40 a.m.-1:10 p.m.

Nonstop1h 30m

Toronto Island

Mon 23/2

8:50 a.m.-10:22 a.m.

Nonstop1h 32m

C$ 281

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Wed 18/2

11:40 a.m.-1:10 p.m.

Nonstop1h 30m

Toronto Island

Sun 22/2

3:45 p.m.-5:14 p.m.

Nonstop1h 29m

C$ 282

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/1

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, March is the cheapest month in which you can book a flight from District of Columbia to Region of Ontario (average of C$ 133). Flying from District of Columbia to Region of Ontario in January is currently the most expensive (average of C$ 262). 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 29 January 2026.

It’s optimal to fly from District of Columbia to Region of Ontario at noon. By choosing this option you can save up to 43% on the cost of your flight, compared to a flight in the afternoon.

What is the cheapest day to fly from District of Columbia to Region of Ontario?

Use this chart to determine the cheapest time to fly round-trip from District of Columbia to Ontario. Price data was last updated on 23 February 2025.

Travelers seeking maximum savings on their District of Columbia to Region of Ontario flight should consider departing on Thursday afternoons when fares are most often at their lowest. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 29 January 2026.

The most flights from USDC to CAON are scheduled on a Wednesday (16 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (12 on average).

How much does it cost to fly round-trip from District of Columbia to Region of Ontario?

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 29 January 2026.
See what other customers who have flown with Porter Airlines,United Airlines, andAir Canada from District of Columbia to Ontario have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
7.9
Good
412 reviews
Check prices

Food

7.5

Boarding

8.2

Comfort

7.9

Overall

7.9

Crew

8.6

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Porter Airlines
7.9
Good
412 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Food

7.5

Boarding

8.2

Comfort

7.9

Overall

7.9

Crew

8.6

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
United Airlines
7.4
Good
9,215 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Food

7.5

Boarding

8.2

Comfort

7.9

Overall

7.9

Crew

8.6

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air Canada
7.1
Good
10,667 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Food

7.5

Boarding

8.2

Comfort

7.9

Overall

7.9

Crew

8.6

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

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.

  • How long is the flight from District of Columbia to Region of Ontario?

    Departing from District of Columbia to Region of Ontario will take you 1h 30m. The distance from District of Columbia to Region of Ontario is about 546 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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$ 89 on Porter Airlines. Other airlines that offer cheap prices include Air Transat from C$ 95 and United Airlines from C$ 109 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, March is the cheapest month in which you can book a flight from District of Columbia to Region of Ontario (average of C$ 133). Flying from District of Columbia to Region of Ontario in January is currently the most expensive (average of C$ 262). 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.
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Top 4 airlines flying from District of Columbia to Ontario

Discover the top 4 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 29 January 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 154AverageC$ 500FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Porter AirlinesCheapestC$ 162AverageC$ 412FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 247AverageC$ 461FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 449AverageC$ 622FlexibilityNo 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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