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Cheap flights from Washington, D.C. Reagan-National Airport to Ontario from C$ 142

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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — YYZ
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Reagan-National to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Reagan-National to Ontario
Explore the most affordable flight options available from Reagan-National to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 December 2025.

Tue 30/126:00 a.m.DCA - YYZ
2 stops13h 26mAir Canada
Wed 7/19:00 p.m.YYZ - DCA
Nonstop1h 35mAir Canada
Deal found 11/12C$ 437
Mon 29/126:00 a.m.DCA - YYZ
1 stop5h 40mAir Canada
Sat 17/14:30 p.m.YYZ - DCA
Nonstop1h 35mAir Canada
Deal found 10/12C$ 448
Tue 30/128:40 p.m.DCA - YYZ
Nonstop1h 37mAir Canada
Mon 5/16:15 a.m.YYZ - DCA
1 stop4h 06mAir Canada
Deal found 10/12C$ 466
Sun 28/128:40 p.m.DCA - YYZ
Nonstop1h 37mAir Canada
Fri 6/26:25 p.m.YYZ - DCA
Nonstop1h 34mAir Canada
Deal found 11/12C$ 470
Sun 28/128:40 p.m.DCA - YUL
1 stop5h 13mAir Canada
Fri 6/28:25 a.m.YUL - DCA
Nonstop1h 58mAir Canada
Deal found 11/12C$ 470
Thu 25/124:10 p.m.DCA - YYZ
1 stop5h 34mAir Canada
Tue 30/127:20 a.m.YYZ - DCA
Nonstop1h 35mAir Canada
Deal found 10/12C$ 476
Thu 25/1210:10 a.m.DCA - YYZ
Nonstop1h 41mAmerican Airlines
Wed 31/125:19 p.m.YYZ - DCA
Nonstop1h 45mAmerican Airlines
Deal found 10/12C$ 484
Wed 31/1211:05 a.m.DCA - YTZ
1 stop6h 50mAir Canada
Mon 5/13:30 p.m.YTZ - DCA
1 stop6h 26mAir Canada
Deal found 9/12C$ 494
Tue 30/126:00 a.m.DCA - YUL
Nonstop1h 45mAir Canada
Tue 6/18:00 p.m.YUL - DCA
Nonstop1h 56mAir Canada
Deal found 11/12C$ 502
Sun 28/128:40 p.m.DCA - YUL
1 stop5h 13mAir Canada
Mon 5/111:10 a.m.YUL - DCA
1 stop6h 55mAir Canada
Deal found 9/12C$ 514
Wed 31/129:40 a.m.DCA - YUL
1 stop4h 42mAir Canada
Tue 6/18:00 p.m.YUL - DCA
Nonstop1h 56mAir Canada
Deal found 11/12C$ 517
Wed 31/124:10 p.m.DCA - YOW
1 stop6h 10mAir Canada
Wed 7/110:30 a.m.YOW - DCA
Nonstop1h 49mAir Canada
Deal found 10/12C$ 534

Find flight deals from Reagan-National to Ontario

Keep the following information in mind while searching for Reagan-National to Ontario flight deals. Data was last updated 12 December 2025.

Round-trip from

C$ 294

One-way from

C$ 142

Popular in

November

Cheapest in

June

Average price

C$ 412

Good round-trip deal

C$ 294 or less

Good one-way deal

C$ 260 or less
Air Canada
  • Air Canada
  • 24/1-31/1
  • 3 total stops
  • 10h 10m total
  • Washington, D.C. to Ontario
Search Deals
Air Canada
  • Air Canada
  • 6/1
  • 1 total stop
  • 4h 49m total
  • Washington, D.C. to Ontario
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 42 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 December 2025
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Reagan-National to Ontario.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Reagan-National to Ontario.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National 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 12 December 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Ontario that are best for you.

Fly from

Reagan-National

Fly to

Ontario

Route

Depart

Return

Price

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Mon 5/1

12:55 p.m.-6:13 p.m.

1 stop5h 18m

Toronto Island

Sat 10/1

10:30 a.m.-3:31 p.m.

1 stop5h 01m

C$ 298

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Sun 25/1

12:55 p.m.-6:13 p.m.

1 stop5h 18m

Toronto Island

Sun 1/2

4:20 p.m.-10:23 a.m.

2 stops18h 03m

C$ 327

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 8/1

10:12 a.m.-11:59 a.m.

Nonstop1h 47m

Toronto Pearson Intl

Fri 9/1

5:15 p.m.-7:14 p.m.

Nonstop1h 59m

C$ 330

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Mon 26/1

6:59 a.m.-8:35 a.m.

Nonstop1h 36m

Toronto Pearson Intl

Mon 2/2

4:30 p.m.-6:05 p.m.

Nonstop1h 35m

C$ 330

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 8/1

8:40 p.m.-10:17 p.m.

Nonstop1h 37m

Toronto Pearson Intl

Fri 9/1

6:10 p.m.-7:45 p.m.

Nonstop1h 35m

C$ 330

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 15/1

6:59 a.m.-8:35 a.m.

Nonstop1h 36m

Toronto Pearson Intl

Tue 20/1

8:15 a.m.-12:19 p.m.

1 stop4h 04m

C$ 336

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Wed 7/1

12:55 p.m.-6:13 p.m.

1 stop5h 18m

Toronto Island

Sat 10/1

10:30 a.m.-3:31 p.m.

1 stop5h 01m

C$ 339

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Fri 16/1

12:55 p.m.-6:13 p.m.

1 stop5h 18m

Toronto Island

Sun 18/1

10:30 a.m.-3:33 p.m.

1 stop5h 03m

C$ 339

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Wed 7/1

12:55 p.m.-6:13 p.m.

1 stop5h 18m

Toronto Island

Mon 12/1

5:30 p.m.-9:56 p.m.

1 stop4h 26m

C$ 339

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Sun 11/1

12:55 p.m.-6:13 p.m.

1 stop5h 18m

Toronto Island

Wed 14/1

10:30 a.m.-3:31 p.m.

1 stop5h 01m

C$ 339

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 60 results
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Best time to book a flight from Reagan-National to Ontario

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

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

Currently, June is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Region of Ontario (average of C$ 145). Flying from Washington, D.C. Reagan-National Airport to Region of Ontario in October is currently the most expensive (average of C$ 320). 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 DCA to ON?

Find hourly flight availability from Reagan-National 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 12 December 2025.

It’s typically best to fly out from Washington, D.C. Reagan-National Airport to Region of Ontario at noon. Doing so could potentially save you 48% on the flight price compared to flying in the evening, which is usually more expensive.

Weekly flight availability from Washington, D.C. Reagan-National Airport to Region of Ontario

Explore weekly flight availability from Reagan-National 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 12 December 2025.

The most flights from DCA to CAON are scheduled on a Wednesday (14 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (10 on average).

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 12 December 2025.
Get a feel of what it's like to fly with Air Canada from Washington, D.C. Reagan-National Airport to Ontario by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,516 reviews
Check prices

Crew

7.8

Food

6.3

Comfort

7.1

Entertainment

6.8

Boarding

7.3

Overall

7.1

Reviews

1 / 20
2.0
Mediocre

Shawna,Sep 2025

DCA - YYZ

Business class cabin was *freezing*. Landing was so hard it injured my back - no apology or explanation given
Air Canada
7.1
Good
10,516 reviews
Air Canada
7.1
Good
10,516 reviews
Check prices

Crew

7.8

Food

6.3

Comfort

7.1

Entertainment

6.8

Boarding

7.3

Overall

7.1

Reviews

1 / 20
2.0
Mediocre

Shawna,Sep 2025

DCA - YYZ

Business class cabin was *freezing*. Landing was so hard it injured my back - no apology or explanation given

Related info for your journey

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

    There are many flights that can get you from Washington, D.C. Reagan-National Airport to Region of Ontario in 1h 47m. Fly via Air Canada or American Airlines to get the fastest option. The distance from Washington, D.C. Reagan-National Airport to Region of Ontario is about 578 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Region of Ontario one-way?

    The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as C$ 129. However, be on the lookout for offers from United Airlines and American Airlines, as they are both options that can get you from Washington, D.C. Reagan-National Airport to Region of Ontario for a low price.

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

    When deciding which route to take from Washington, D.C. Reagan-National Airport to Region of Ontario consider Washington, D.C. Reagan-National - Toronto Pearson Intl, Washington, D.C. Reagan-National - Montreal Pierre Elliott Trudeau Intl or Washington, D.C. Reagan-National - Ottawa as they are the most popular.

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

    Before booking your flight to Region of Ontario from Washington, D.C. Reagan-National Airport, check out the most reliable airlines to get you to your destination on time: United Airlines (72%), Air Canada (71%), Jazz( 71%).

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

    While on average a flight from Washington, D.C. Reagan-National Airport to Region of Ontario is generally C$ 404, our data shows the cheapest flight currently is C$ 133. When looking at the most popular route, (Washington, D.C. Reagan-National - Toronto Pearson Intl), you can expect to pay C$ 324 for that flight.

  • Can I find deals for flights from Reagan-National to Ontario that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Ontario?

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

  • Can I find deals for business class flights from Reagan-National to Ontario?

    Yes. Cheapflights offers flight deals from Reagan-National 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. Reagan-National Airport to Region of Ontario?

    Currently, June is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Region of Ontario (average of C$ 145). Flying from Washington, D.C. Reagan-National Airport to Region of Ontario in October is currently the most expensive (average of C$ 320). 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 Reagan-National to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Reagan-National to Pearson Intl flights
Dulles Intl to Pearson Intl flights
Dulles Intl to Pierre Elliott Trudeau Intl flights
Reagan-National to Pierre Elliott Trudeau Intl flights
Dulles Intl to Toronto Island flights
Dulles Intl to Vancouver Intl flights
Baltimore to Pearson Intl flights
Baltimore to Pierre Elliott Trudeau Intl flights
Reagan-National to Vancouver Intl flights
Baltimore to Vancouver Intl flights
Dulles Intl to Calgary flights
Dulles Intl to Ottawa flights
Baltimore to Calgary flights
Reagan-National to Calgary flights
Reagan-National to Ottawa flights
Reagan-National to Toronto Island flights
Dulles Intl to Québec City flights
Reagan-National to Québec City flights
Baltimore to Québec City flights
Baltimore to Toronto Island flights
Dulles Intl to Winnipeg flights
Reagan-National to Winnipeg flights
Dulles Intl to Halifax flights
Baltimore to Ottawa flights
Baltimore to Winnipeg flights
Dulles Intl to Abbotsford flights
Baltimore to Halifax flights
Reagan-National to Victoria flights
Dulles Intl to Edmonton flights
Dulles Intl to Victoria flights
Dulles Intl to Kelowna flights
Baltimore to Edmonton flights
Reagan-National to Edmonton flights
Baltimore to Victoria flights
Baltimore to Regina flights
Dulles Intl to Charlottetown flights
Dulles Intl to Regina flights
Baltimore to Moncton flights
Reagan-National to Regina flights

Top airline flying from Reagan-National to Ontario

Discover the top airline that operate flights from Reagan-National 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 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 320AverageC$ 471FlexibilityNo cancel feeOn-time67%
Search Air Canada 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 Reagan-National to Ontario?

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Why should you use Cheapflights to find cheap flight tickets from Reagan-National to Ontario?

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Yes! Cheapflights helps users easily find flights from Reagan-National to Ontario with no change fees.

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Not ready to book yet? You can track prices for flights from Reagan-National to Ontario on Cheapflights with our Price Alert feature and get notified when better prices are available.

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