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Cheap flights from Washington, D.C. Reagan-National Airport to Ontario from C$ 148

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 19/1. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — YYZ
27 Nov — 4 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap 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 28 October 2025.

Round-trip from

C$ 306

One-way from

C$ 148

Popular in

October

Cheapest in

June

Average price

C$ 446

Good round-trip deal

C$ 236 or less

Good one-way deal

C$ 269 or less
Air Canada
  • Air Canada
  • 20/11-23/11
  • 2 total stops
  • 9h 44m total
  • Washington, D.C. to Ontario
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Air Canada
  • Air Canada
  • 19/1
  • Nonstop
  • 1h 37m total
  • Washington, D.C. to Ontario
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Highest demand for flights based on searches. 4% potential increase in price (C$ 24 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease (C$ 7 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Washington, D.C. Reagan-National to Ontario.
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Price to beat on a one-way flight from Washington, D.C. Reagan-National to Ontario.
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Find 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 28 October 2025.

Thu 20/1112:55 p.m.DCA - YTZ
1 stop5h 18mAir Canada
Sun 23/115:30 p.m.YTZ - DCA
1 stop4h 26mAir Canada
Deal found 27/10C$ 308
Thu 20/116:59 a.m.DCA - YYZ
Nonstop1h 36mAir Canada
Sun 23/117:20 a.m.YYZ - DCA
Nonstop1h 35mAir Canada
Deal found 27/10C$ 316
Sat 29/116:00 a.m.DCA - YTZ
1 stop5h 55mAir Canada
Sat 6/125:30 p.m.YTZ - DCA
1 stop4h 26mAir Canada
Deal found 27/10C$ 324
Sat 29/116:59 a.m.DCA - YYZ
Nonstop1h 36mAir Canada
Sat 6/124:30 p.m.YYZ - DCA
Nonstop1h 35mAir Canada
Deal found 27/10C$ 334
Sat 29/114:10 p.m.DCA - YYZ
1 stop5h 34mAir Canada
Fri 5/129:00 a.m.YYZ - DCA
1 stop6h 31mAir Canada
Deal found 27/10C$ 336
Wed 19/116:59 a.m.DCA - YYZ
Nonstop1h 36mAir Canada
Wed 19/1111:00 a.m.YYZ - DCA
1 stop4h 31mAir Canada
Deal found 27/10C$ 344
Fri 28/116:50 p.m.DCA - YYZ
Nonstop1h 37mAir Canada
Fri 5/129:00 a.m.YYZ - DCA
1 stop6h 31mAir Canada
Deal found 27/10C$ 345
Fri 28/116:59 a.m.DCA - YYZ
Nonstop1h 36mAir Canada
Sat 6/124:30 p.m.YYZ - DCA
Nonstop1h 35mAir Canada
Deal found 27/10C$ 352
Sun 30/1111:05 a.m.DCA - YTZ
1 stop5h 50mAir Canada
Sat 6/125:30 p.m.YTZ - DCA
1 stop4h 26mAir Canada
Deal found 27/10C$ 354
Fri 28/1111:05 a.m.DCA - YTZ
2 stops7h 08mAir Canada
Sat 6/125:30 p.m.YTZ - DCA
1 stop4h 26mAir Canada
Deal found 27/10C$ 362
Sat 29/114:10 p.m.DCA - YTZ
1 stop5h 25mAir Canada
Fri 5/128:30 a.m.YTZ - DCA
1 stop7h 01mAir Canada
Deal found 27/10C$ 364
Thu 11/126:00 a.m.DCA - YTZ
1 stop5h 55mAir Canada
Thu 18/128:30 a.m.YTZ - DCA
1 stop7h 01mAir Canada
Deal found 27/10C$ 368

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 28 October 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

Thu 20/11

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

1 stop5h 18m

Toronto Island

Sun 23/11

3:30 p.m.-9:56 p.m.

1 stop6h 26m

C$ 313

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Thu 11/12

6:00 a.m.-11:55 a.m.

1 stop5h 55m

Toronto Island

Thu 18/12

8:30 a.m.-3:31 p.m.

1 stop7h 01m

C$ 368

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Sun 15/2

7:00 p.m.-9:58 a.m.

1 stop14h 58m

Toronto Pearson Intl

Mon 16/2

12:45 p.m.-5:33 p.m.

1 stop4h 48m

C$ 372

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Thu 20/11

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

1 stop5h 18m

Toronto Island

Mon 24/11

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

1 stop4h 26m

C$ 375

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Mon 17/11

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

1 stop5h 18m

Toronto Island

Wed 19/11

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

1 stop5h 01m

C$ 375

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Thu 20/11

11:05 a.m.-5:55 p.m.

1 stop6h 50m

Toronto Island

Tue 25/11

8:30 a.m.-3:31 p.m.

1 stop7h 01m

C$ 375

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Mon 24/11

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

1 stop5h 18m

Toronto Island

Fri 28/11

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

1 stop5h 01m

C$ 375

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Wed 14/1

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

1 stop5h 18m

Toronto Island

Thu 15/1

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

1 stop5h 01m

C$ 375

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Thu 8/1

4:10 p.m.-9:35 p.m.

1 stop5h 25m

Toronto Island

Mon 12/1

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

1 stop4h 26m

C$ 375

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Mon 17/11

11:05 a.m.-4:55 p.m.

1 stop5h 50m

Toronto Island

Tue 18/11

8:30 a.m.-3:31 p.m.

1 stop7h 01m

C$ 375

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/10

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$ 147). Flying from Washington, D.C. Reagan-National Airport to Region of Ontario in October is currently the most expensive (average of C$ 309). 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 28 October 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 52% on the flight price compared to flying in the evening, which is usually more expensive.

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 October 2025.
Get a feel of what it's like to fly with United Airlines and 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.
United Airlines
7.4
Good
9,001 reviews
Check prices

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.6

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,001 reviews
United Airlines
7.4
Good
9,001 reviews
Check prices

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.6

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Air Canada
7.1
Good
10,371 reviews
United Airlines
7.4
Good
9,001 reviews
Check prices

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.6

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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 5h 18m. Fly via Air Canada or United Airlines to get the fastest option. The distance from Washington, D.C. Reagan-National Airport to Region of Ontario is about 566 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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: American Airlines (82%), PSA Airlines (82%), Air Canada( 80%).

  • 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$ 352, our data shows the cheapest flight currently is C$ 125. When looking at the most popular route, (Washington, D.C. Reagan-National - Toronto Pearson Intl), you can expect to pay C$ 344 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$ 147). Flying from Washington, D.C. Reagan-National Airport to Region of Ontario in October is currently the most expensive (average of C$ 309). 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 Pierre Elliott Trudeau Intl flights
Dulles Intl to Pearson 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 Vancouver Intl flights
Baltimore to Pierre Elliott Trudeau Intl flights
Reagan-National to Vancouver Intl flights
Dulles Intl to Calgary flights
Reagan-National to Calgary flights
Dulles Intl to Québec City flights
Baltimore to Calgary flights
Dulles Intl to Ottawa flights
Baltimore to Toronto Island flights
Reagan-National to Québec City flights
Dulles Intl to Halifax flights
Baltimore to Québec City flights
Baltimore to Halifax flights
Dulles Intl to Abbotsford flights
Reagan-National to Ottawa flights
Baltimore to Ottawa flights
Dulles Intl to Winnipeg flights
Baltimore to Winnipeg flights
Dulles Intl to Edmonton flights
Baltimore to Edmonton flights
Reagan-National to Toronto Island flights
Reagan-National to Edmonton flights
Reagan-National to Winnipeg flights
Dulles Intl to Kelowna flights
Dulles Intl to Victoria flights
Baltimore to Victoria flights
Reagan-National to Victoria flights
Baltimore to Saskatoon flights
Dulles Intl to Sault Ste Marie flights
Dulles Intl to Hamilton flights
Dulles Intl to London flights
Dulles Intl to Thunder Bay 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 28 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 208AverageC$ 489FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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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?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ontario from Reagan-National.

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

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