Cheap flights from Washington, D.C. Reagan-National Airport to Ontario from C$ 115

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 14/9. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — YYZ
3 Aug — 10 Aug1
1 adult

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 29 July 2025.

Round-trip from

C$ 263

One-way from

C$ 115

Popular in

November

Cheapest in

June

Average price

C$ 392

Good round-trip deal

C$ 204 or less

Good one-way deal

C$ 128 or less
Air Canada
  • Air Canada
  • 4/9-7/9
  • 2 total stops
  • 8h 47m total
  • Washington, D.C. to Ontario
American Airlines
  • American Airlines
  • 14/9
  • Nonstop
  • 1h 39m total
  • Washington, D.C. to Ontario
Highest demand for flights based on searches. 4% potential increase in price (C$ 24 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease (C$ 8 potential savings vs. average RT price).
Average for round-trip flights in July 2025
Price to beat on a round-trip flight from Washington, D.C. Reagan-National to Ontario.
Price to beat on a one-way flight from Washington, D.C. Reagan-National to Ontario.

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 29 July 2025.

Wed 27/89:40 a.m.DCA - YTZ
1 stop5h 06mAir Canada
Fri 29/85:25 p.m.YTZ - DCA
1 stop4h 23mAir Canada
Deal found 28/7C$ 272
Wed 27/86:00 a.m.DCA - YYZ
1 stop4h 40mAir Canada
Fri 29/89:00 a.m.YYZ - DCA
1 stop6h 48mAir Canada
Deal found 28/7C$ 283
Thu 4/97:00 p.m.DCA - YYZ
1 stop4h 58mMultiple Airlines
Sun 7/97:25 a.m.YYZ - DCA
Nonstop1h 34mMultiple Airlines
Deal found 29/7C$ 361
Wed 10/99:40 a.m.DCA - YUL
Nonstop1h 49mAir Canada
Wed 17/98:00 p.m.YUL - DCA
Nonstop1h 51mAir Canada
Deal found 27/7C$ 361
Fri 5/912:55 p.m.DCA - YOW
Nonstop1h 31mAir Canada
Fri 12/910:25 a.m.YOW - DCA
Nonstop1h 43mAir Canada
Deal found 29/7C$ 417
Wed 27/89:00 a.m.DCA - YUL
1 stop4h 09mUnited Airlines
Wed 27/84:55 p.m.YUL - DCA
1 stop5h 48mUnited Airlines
Deal found 29/7C$ 421
Tue 30/912:30 p.m.DCA - YUL
1 stop5h 20mDelta
Thu 30/107:00 a.m.YUL - DCA
1 stop10h 48mDelta
Deal found 26/7C$ 451
Sat 30/86:25 p.m.DCA - YUL
1 stop5h 03mMultiple Airlines
Sun 31/88:30 a.m.YUL - DCA
Nonstop1h 48mMultiple Airlines
Deal found 29/7C$ 469
Fri 22/89:00 a.m.DCA - YOW
1 stop13h 05mMultiple Airlines
Mon 25/810:25 a.m.YOW - DCA
Nonstop1h 38mMultiple Airlines
Deal found 27/7C$ 520
Sun 17/83:05 p.m.DCA - YOW
1 stop7h 00mUnited Airlines
Wed 20/86:05 a.m.YOW - DCA
1 stop4h 23mUnited Airlines
Deal found 28/7C$ 571
Fri 8/811:00 a.m.DCA - YXU
1 stop4h 02mAir Canada
Sun 10/85:55 p.m.YXU - DCA
1 stop4h 32mAir Canada
Deal found 28/7C$ 1,362
Fri 1/86:25 a.m.DCA - YXU
2 stops10h 42mUnited Airlines
Wed 6/85:55 p.m.YXU - DCA
1 stop4h 32mUnited Airlines
Deal found 27/7C$ 1,685

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 29 July 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 - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 4/9

6:00 a.m.-10:39 a.m.

1 stop4h 39m

Toronto Pearson Intl

Sun 7/9

8:00 a.m.-12:08 p.m.

1 stop4h 08m

C$ 263

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Wed 27/8

9:40 a.m.-2:46 p.m.

1 stop5h 06m

Toronto Island

Fri 29/8

5:25 p.m.-9:48 p.m.

1 stop4h 23m

C$ 272

Washington, D.C.Montreal

DCA - YUL

DCAYUL

Washington, D.C. Reagan-National

Wed 10/9

9:40 a.m.-11:29 a.m.

Nonstop1h 49m

Montreal Pierre Elliott Trudeau Intl

Wed 17/9

8:00 p.m.-9:51 p.m.

Nonstop1h 51m

C$ 361

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Fri 22/8

12:55 p.m.-2:27 p.m.

Nonstop1h 32m

Ottawa

Mon 25/8

10:25 a.m.-12:03 p.m.

Nonstop1h 38m

C$ 424

Washington, D.C.Montreal

DCA - YUL

DCAYUL

Washington, D.C. Reagan-National

Sat 30/8

2:00 p.m.-9:29 p.m.

1 stop7h 29m

Montreal Pierre Elliott Trudeau Intl

Sun 31/8

6:15 a.m.-12:59 p.m.

1 stop6h 44m

C$ 439

Washington, D.C.Montreal

DCA - YUL

DCAYUL

Washington, D.C. Reagan-National

Tue 30/9

4:00 p.m.-11:56 p.m.

1 stop7h 56m

Montreal Pierre Elliott Trudeau Intl

Tue 28/10

2:30 p.m.-9:07 p.m.

1 stop6h 37m

C$ 451

Washington, D.C.Montreal

DCA - YUL

DCAYUL

Washington, D.C. Reagan-National

Sat 30/8

6:25 p.m.-11:28 p.m.

1 stop5h 03m

Montreal Pierre Elliott Trudeau Intl

Sun 31/8

8:30 a.m.-10:18 a.m.

Nonstop1h 48m

C$ 469

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Fri 22/8

9:00 a.m.-10:05 p.m.

1 stop13h 05m

Ottawa

Mon 25/8

10:25 a.m.-12:03 p.m.

Nonstop1h 38m

C$ 520

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Sun 17/8

3:05 p.m.-10:05 p.m.

1 stop7h 00m

Ottawa

Wed 20/8

6:05 a.m.-10:28 a.m.

1 stop4h 23m

C$ 571

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Fri 8/8

11:00 a.m.-3:02 p.m.

1 stop4h 02m

London

Sun 10/8

5:55 p.m.-10:27 p.m.

1 stop4h 32m

C$ 1,362

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/7

Showing 1-10 of 30 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$ 167). 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 29 July 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 29 July 2025.

The most flights from DCA to CAON are scheduled on a Monday (9 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (7 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 29 July 2025.
Get a feel of what it's like to fly with Delta,United Airlines, andAmerican Airlines 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.

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.
  • 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 American Airlines, with whom users have recently found tickets for as low as C$ 115. However, be on the lookout for offers from Air Canada and Delta, 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?

  • 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 (67%), PSA Airlines (67%), Air Canada( 67%).

  • 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$ 351, our data shows the cheapest flight currently is C$ 109. When looking at the most popular route, (Washington, D.C. Reagan-National - Toronto Pearson Intl), you can expect to pay C$ 332 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$ 167). 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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Top 2 airlines flying from Reagan-National to Ontario

Discover the top 2 airlines 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 29 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 158AverageC$ 480FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapestC$ 169AverageC$ 428FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

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

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