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Cheap flights from District of Columbia to Ontario from C$ 150

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 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YYZ
15 Jul — 22 Jul1
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 15 June 2026.

Thu 23/73:55 p.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Sun 26/78:55 a.m.
YTZ
-
IAD
Nonstop1h 30m
Porter Airlines
Deal found 13/6C$ 329
Mon 10/83:50 p.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Thu 13/89:15 a.m.
YTZ
-
IAD
Nonstop1h 30m
Porter Airlines
Deal found 14/6C$ 330
Tue 14/711:05 a.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Tue 21/78:55 a.m.
YTZ
-
IAD
Nonstop1h 30m
Porter Airlines
Deal found 13/6C$ 331
Mon 20/73:55 p.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Sun 23/89:15 a.m.
YTZ
-
IAD
Nonstop1h 30m
Porter Airlines
Deal found 14/6C$ 333
Mon 6/711:05 a.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Wed 8/78:55 a.m.
YTZ
-
IAD
Nonstop1h 30m
Porter Airlines
Deal found 12/6C$ 334
Thu 23/73:55 p.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Sun 2/89:15 a.m.
YTZ
-
IAD
Nonstop1h 30m
Porter Airlines
Deal found 10/6C$ 336
Fri 3/711:05 a.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Wed 8/78:55 a.m.
YTZ
-
IAD
Nonstop1h 30m
Porter Airlines
Deal found 11/6C$ 337
Sat 11/711:05 a.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Wed 22/71:40 p.m.
YTZ
-
IAD
Nonstop1h 31m
Porter Airlines
Deal found 10/6C$ 338
Sat 4/711:05 a.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Sat 11/71:40 p.m.
YTZ
-
IAD
Nonstop1h 31m
Porter Airlines
Deal found 13/6C$ 340
Fri 10/73:55 p.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Tue 4/89:15 a.m.
YTZ
-
IAD
Nonstop1h 30m
Porter Airlines
Deal found 10/6C$ 341
Tue 30/611:30 a.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Fri 3/78:55 a.m.
YTZ
-
IAD
Nonstop1h 30m
Porter Airlines
Deal found 12/6C$ 343
Mon 6/711:05 a.m.
IAD
-
YTZ
Nonstop1h 30m
Porter Airlines
Tue 7/78:55 a.m.
YTZ
-
IAD
Nonstop1h 30m
Porter Airlines
Deal found 10/6C$ 344

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 15 June 2026.

Round-trip from

C$ 313

One-way from

C$ 150

Popular in

May

Cheapest in

January

Average price

C$ 400

Good round-trip deal

C$ 334 or less

Good one-way deal

C$ 172 or less
Porter Airlines
  • Porter Airlines
  • 26/8-31/8
  • Nonstop
  • 3h 00m total
  • District of Columbia to Ontario
Search Deals
Porter Airlines
  • Porter Airlines
  • 3/7
  • Nonstop
  • 1h 30m total
  • District of Columbia to Ontario
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 19 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 15 June 2026.
Use the filters below to find and compare flights from District of Columbia to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Mon 10/8

9:40 a.m.-3:51 p.m.

1 stop6h 11m

Toronto Island

Thu 13/8

8:20 a.m.-12:00 p.m.

1 stop3h 40m

C$ 403
Quickest round-trip

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Wed 1/7

11:05 a.m.-12:35 p.m.

Nonstop1h 30m

Toronto Island

Sat 4/7

8:55 a.m.-10:25 a.m.

Nonstop1h 30m

C$ 411

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Mon 29/6

4:00 p.m.-5:30 p.m.

Nonstop1h 30m

Toronto Island

Wed 1/7

8:55 a.m.-10:25 a.m.

Nonstop1h 30m

C$ 418

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Tue 7/7

10:14 p.m.-11:54 p.m.

Nonstop1h 40m

Toronto Pearson Intl

Sat 11/7

9:35 a.m.-11:11 a.m.

Nonstop1h 36m

C$ 431

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Sat 8/8

10:14 p.m.-11:54 p.m.

Nonstop1h 40m

Toronto Pearson Intl

Wed 12/8

2:30 p.m.-4:07 p.m.

Nonstop1h 37m

C$ 431

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Mon 27/7

5:15 p.m.-7:02 p.m.

Nonstop1h 47m

Toronto Pearson Intl

Thu 30/7

9:35 a.m.-11:11 a.m.

Nonstop1h 36m

C$ 431

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Wed 1/7

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

Nonstop1h 39m

Toronto Pearson Intl

Sat 4/7

2:35 p.m.-4:18 p.m.

Nonstop1h 43m

C$ 431

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Tue 30/6

12:40 p.m.-6:20 p.m.

1 stop5h 40m

Toronto Island

Thu 2/7

8:20 a.m.-12:00 p.m.

1 stop3h 40m

C$ 432

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Sun 19/7

6:00 a.m.-11:51 a.m.

1 stop5h 51m

Toronto Island

Sat 25/7

8:20 a.m.-12:00 p.m.

1 stop3h 40m

C$ 438

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Mon 21/9

11:25 a.m.-12:55 p.m.

Nonstop1h 30m

Toronto Island

Fri 25/9

1:40 p.m.-3:10 p.m.

Nonstop1h 30m

C$ 439

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/6

Showing 1-10 of 60 resultsSorted by cheapest first
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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, June is the cheapest month in which you can book a flight from District of Columbia to Region of Ontario (average of C$ 371). Flying from District of Columbia to Region of Ontario in February is currently the most expensive (average of C$ 1,264). 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 15 June 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 21% on the cost of your flight, compared to a flight in the evening.

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 15 June 2026.

The most flights from USDC to CAON are scheduled on a Monday (19 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (15 on average).

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

How far ahead should I book a flight from District of Columbia to Region of Ontario?

The price you pay for your flight from District of Columbia to Region of Ontario may vary depending on when you book. For the best chance of a lower fare, look to book 78 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 8 June 2026.

Travelers seeking maximum savings on their District of Columbia to Region of Ontario flight should consider departing on Thursday at noon 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.

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 15 June 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
8.0
Very good
438 reviews
Check prices

Boarding

8.2

Crew

8.6

Comfort

8.0

Entertainment

6.9

Food

7.6

Overall

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
Porter Airlines
8.0
Very good
438 reviews
Porter Airlines
8.0
Very good
438 reviews
Check prices

Boarding

8.2

Crew

8.6

Comfort

8.0

Entertainment

6.9

Food

7.6

Overall

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
United Airlines
7.4
Good
9,830 reviews
Porter Airlines
8.0
Very good
438 reviews
Check prices

Boarding

8.2

Crew

8.6

Comfort

8.0

Entertainment

6.9

Food

7.6

Overall

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
Air Canada
7.1
Good
11,194 reviews
Porter Airlines
8.0
Very good
438 reviews
Check prices

Boarding

8.2

Crew

8.6

Comfort

8.0

Entertainment

6.9

Food

7.6

Overall

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.

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$ 97 on Porter Airlines. Other airlines that offer cheap prices include United Airlines from C$ 124 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, June is the cheapest month in which you can book a flight from District of Columbia to Region of Ontario (average of C$ 371). Flying from District of Columbia to Region of Ontario in February is currently the most expensive (average of C$ 1,264). 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 3 airlines flying from District of Columbia to Ontario

Discover the top 3 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 15 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 178AverageC$ 533FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 285AverageC$ 405FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 366AverageC$ 515FlexibilityNo cancel feeOn-time69%
Search United Airlines 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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