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Cheap flights from Washington, D.C. Reagan-National Airport to Ontario from C$ 132

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 18/10. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — YYZ
11 Oct — 18 Oct1
1 adult
1 adult, Economy

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 11 September 2025.

Round-trip from

C$ 294

One-way from

C$ 132

Popular in

August

Cheapest in

June

Average price

C$ 385

Good round-trip deal

C$ 211 or less

Good one-way deal

C$ 255 or less
Air Canada
  • Air Canada
  • 23/9-26/9
  • 2 total stops
  • 10h 44m total
  • Washington, D.C. to Ontario
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Air Canada
  • Air Canada
  • 18/10
  • 1 total stop
  • 4h 08m total
  • Washington, D.C. to Ontario
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 25 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease (C$ 11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 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

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 11 September 2025.

Tue 23/94:35 p.m.DCA - YYZ
1 stop6h 39mAir Canada
Fri 26/96:15 a.m.YYZ - DCA
1 stop4h 05mAir Canada
Deal found 9/9C$ 294
Sat 11/106:00 a.m.DCA - YTZ
1 stop5h 45mAir Canada
Wed 15/1010:25 a.m.YTZ - DCA
1 stop5h 26mAir Canada
Deal found 11/9C$ 295
Wed 1/106:59 a.m.DCA - YYZ
Nonstop1h 32mAir Canada
Wed 8/107:25 a.m.YYZ - DCA
Nonstop1h 34mAir Canada
Deal found 9/9C$ 301
Thu 16/106:00 a.m.DCA - YYZ
1 stop5h 39mAir Canada
Sun 19/107:25 a.m.YYZ - DCA
Nonstop1h 34mAir Canada
Deal found 11/9C$ 302
Sat 11/106:59 a.m.DCA - YYZ
Nonstop1h 32mAir Canada
Wed 15/107:25 a.m.YYZ - DCA
Nonstop1h 34mAir Canada
Deal found 11/9C$ 305
Thu 2/106:00 a.m.DCA - YYZ
1 stop5h 39mAir Canada
Sun 5/107:25 a.m.YYZ - DCA
Nonstop1h 34mAir Canada
Deal found 10/9C$ 306
Sat 25/104:35 p.m.DCA - YTZ
1 stop4h 59mAir Canada
Sat 1/1110:30 a.m.YTZ - DCA
1 stop5h 25mAir Canada
Deal found 10/9C$ 306
Thu 25/96:59 a.m.DCA - YYZ
Nonstop1h 32mAir Canada
Sun 12/107:25 a.m.YYZ - DCA
Nonstop1h 34mAir Canada
Deal found 9/9C$ 313
Wed 1/106:00 a.m.DCA - YYZ
1 stop4h 39mAir Canada
Sat 4/106:30 a.m.YYZ - DCA
1 stop5h 38mAir Canada
Deal found 9/9C$ 315
Thu 25/96:00 a.m.DCA - YTZ
1 stop5h 45mAir Canada
Sat 27/93:25 p.m.YTZ - DCA
1 stop6h 26mAir Canada
Deal found 11/9C$ 316
Wed 1/108:40 p.m.DCA - YYZ
Nonstop1h 32mAir Canada
Thu 16/108:55 p.m.YYZ - DCA
Nonstop1h 39mAir Canada
Deal found 11/9C$ 319
Wed 1/106:00 a.m.DCA - YTZ
1 stop5h 45mAir Canada
Thu 16/1010:25 a.m.YTZ - DCA
1 stop5h 26mAir Canada
Deal found 11/9C$ 330

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 11 September 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

Sat 25/10

4:35 p.m.-9:34 p.m.

1 stop4h 59m

Toronto Island

Sat 1/11

10:30 a.m.-3:55 p.m.

1 stop5h 25m

C$ 308

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Thu 25/9

6:00 a.m.-11:45 a.m.

1 stop5h 45m

Toronto Island

Sat 27/9

3:25 p.m.-9:51 p.m.

1 stop6h 26m

C$ 316

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Wed 8/10

11:00 a.m.-12:32 p.m.

Nonstop1h 32m

Toronto Pearson Intl

Wed 15/10

6:10 p.m.-7:44 p.m.

Nonstop1h 34m

C$ 327

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Fri 17/10

12:55 p.m.-6:46 p.m.

1 stop5h 51m

Toronto Island

Wed 22/10

10:25 a.m.-3:51 p.m.

1 stop5h 26m

C$ 333

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 30/10

9:40 a.m.-11:17 a.m.

Nonstop1h 37m

Toronto Pearson Intl

Sun 2/11

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

1 stop4h 04m

C$ 334

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Fri 7/11

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

1 stop5h 55m

Toronto Island

Mon 10/11

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

1 stop4h 26m

C$ 341

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Wed 22/10

4:35 p.m.-9:34 p.m.

1 stop4h 59m

Toronto Island

Sat 25/10

5:25 p.m.-9:51 p.m.

1 stop4h 26m

C$ 342

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Sun 28/9

12:55 p.m.-6:45 p.m.

1 stop5h 50m

Toronto Island

Wed 1/10

10:25 a.m.-3:51 p.m.

1 stop5h 26m

C$ 346

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Tue 2/12

5:05 p.m.-10:57 p.m.

1 stop5h 52m

Toronto Pearson Intl

Sun 7/12

9:52 a.m.-6:59 p.m.

1 stop9h 07m

C$ 362

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Wed 3/12

9:35 a.m.-5:15 p.m.

1 stop7h 40m

Toronto Pearson Intl

Sat 6/12

6:05 p.m.-10:59 p.m.

1 stop4h 54m

C$ 362

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

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, January 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$ 168). Flying from Washington, D.C. Reagan-National Airport 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 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 11 September 2025.

When flying from Washington, D.C. Reagan-National Airport to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 11 September 2025.

The most flights from DCA to CAON are scheduled on a Monday (10 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 11 September 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
8,937 reviews
Check prices

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews
Check prices

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.1
Good
10,000 reviews
United Airlines
7.4
Good
8,937 reviews
Check prices

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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 4h 59m. Fly via Air Canada or Delta 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 (78%), PSA Airlines (78%), Air Canada( 68%).

  • 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$ 423, our data shows the cheapest flight currently is C$ 134. When looking at the most popular route, (Washington, D.C. Reagan-National - Toronto Pearson Intl), you can expect to pay C$ 309 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, January 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$ 168). Flying from Washington, D.C. Reagan-National Airport 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

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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.
Dulles Intl to Pearson Intl flights
Reagan-National to Pearson Intl flights
Dulles Intl to Pierre Elliott Trudeau Intl flights
Dulles Intl to Toronto Island flights
Reagan-National to Pierre Elliott Trudeau Intl flights
Dulles Intl to Vancouver Intl flights
Baltimore to Pearson Intl flights
Baltimore to Vancouver Intl flights
Reagan-National to Vancouver Intl flights
Baltimore to Pierre Elliott Trudeau Intl flights
Dulles Intl to Calgary flights
Dulles Intl to Ottawa flights
Reagan-National to Ottawa flights
Baltimore to Toronto Island flights
Baltimore to Calgary flights
Dulles Intl to Québec City flights
Reagan-National to Calgary flights
Reagan-National to Québec City flights
Dulles Intl to Halifax flights
Baltimore to Québec City flights
Baltimore to Ottawa flights
Dulles Intl to Abbotsford flights
Baltimore to Halifax flights
Dulles Intl to Hamilton flights
Reagan-National to Toronto Island flights
Dulles Intl to Winnipeg flights
Baltimore to Edmonton flights
Dulles Intl to Edmonton flights
Baltimore to Winnipeg flights
Baltimore to Charlottetown flights
Dulles Intl to Charlottetown flights
Dulles Intl to Victoria flights
Reagan-National to Edmonton flights
Dulles Intl to Sault Ste Marie flights
Reagan-National to Winnipeg flights
Baltimore to Victoria flights
Baltimore to Saskatoon flights
Reagan-National to Victoria flights
Dulles Intl to Kelowna flights
Dulles Intl to London flights
Baltimore to Fredericton 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 11 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 160AverageC$ 479FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Reagan-National to Ontario?

Cheapflights helps you search for flights from Reagan-National to Ontario via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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.

Can Cheapflights find flights from Reagan-National to Ontario with no change fees?

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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