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$103+ Cheap flights from Reagan-National (DCA) to Ontario

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 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — YYZ
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap 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 December 12, 2025.

This Air Canada deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:00 amDCA - YYZ
2 stops13h 26mAir Canada
Wed 1/79:00 pmYYZ - DCA
Nonstop1h 35mAir Canada
Deal found 12/11$317
This Air Canada deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:00 amDCA - YYZ
1 stop5h 40mAir Canada
Sat 1/174:30 pmYYZ - DCA
Nonstop1h 35mAir Canada
Deal found 12/10$325
This Air Canada deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:40 pmDCA - YYZ
Nonstop1h 37mAir Canada
Mon 1/56:15 amYYZ - DCA
1 stop4h 06mAir Canada
Deal found 12/10$338
This Air Canada deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/288:40 pmDCA - YYZ
Nonstop1h 37mAir Canada
Fri 2/66:25 pmYYZ - DCA
Nonstop1h 34mAir Canada
Deal found 12/11$341
This Air Canada deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/288:40 pmDCA - YUL
1 stop5h 13mAir Canada
Fri 2/68:25 amYUL - DCA
Nonstop1h 58mAir Canada
Deal found 12/11$341
This Air Canada deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/254:10 pmDCA - YYZ
1 stop5h 34mAir Canada
Tue 12/307:20 amYYZ - DCA
Nonstop1h 35mAir Canada
Deal found 12/10$345
This American Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2510:10 amDCA - YYZ
Nonstop1h 41mAmerican Airlines
Wed 12/315:19 pmYYZ - DCA
Nonstop1h 45mAmerican Airlines
Deal found 12/10$351
This Air Canada deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:05 amDCA - YTZ
1 stop6h 50mAir Canada
Mon 1/53:30 pmYTZ - DCA
1 stop6h 26mAir Canada
Deal found 12/9$358
This Air Canada deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:00 amDCA - YUL
Nonstop1h 45mAir Canada
Tue 1/68:00 pmYUL - DCA
Nonstop1h 56mAir Canada
Deal found 12/11$364
This Air Canada deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/288:40 pmDCA - YUL
1 stop5h 13mAir Canada
Mon 1/511:10 amYUL - DCA
1 stop6h 55mAir Canada
Deal found 12/9$373
This Air Canada deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:40 amDCA - YUL
1 stop4h 42mAir Canada
Tue 1/68:00 pmYUL - DCA
Nonstop1h 56mAir Canada
Deal found 12/11$375
This Air Canada deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:10 pmDCA - YOW
1 stop6h 10mAir Canada
Wed 1/710:30 amYOW - DCA
Nonstop1h 49mAir Canada
Deal found 12/10$387

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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$213
(Flightnetwork)

One-way from

$103
(Air Canada)

Popular in

November

Cheapest in

June

Average price

$299

Good round-trip deal

$332 or less

Good one-way deal

$116 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Toronto (YTO) flights.
Search Deals
From Washington, D.C. Reagan-National to Ontario
Search Deals
One-way flight from Washington, D.C. Reagan-National to Ontario
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 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 2,558,603 searches. Data last updated December 12, 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 1/24

6:00 am-11:42 am

2 stops5h 42m

Toronto Island

Sat 1/31

5:30 pm-9:58 pm

1 stop4h 28m

$213

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Mon 1/5

12:55 pm-6:13 pm

1 stop5h 18m

Toronto Island

Sat 1/10

10:30 am-3:31 pm

1 stop5h 01m

$216

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Sun 1/25

12:55 pm-6:13 pm

1 stop5h 18m

Toronto Island

Sun 2/1

4:20 pm-10:23 am

2 stops18h 03m

$237

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 1/8

10:12 am-11:59 am

Nonstop1h 47m

Toronto Pearson Intl

Fri 1/9

5:15 pm-7:14 pm

Nonstop1h 59m

$239

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 2/12

6:59 am-8:35 am

Nonstop1h 36m

Toronto Pearson Intl

Mon 2/23

7:20 am-8:55 am

Nonstop1h 35m

$239

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 2/12

8:40 pm-10:17 pm

Nonstop1h 37m

Toronto Pearson Intl

Tue 2/17

9:00 pm-10:35 pm

Nonstop1h 35m

$239

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 1/8

6:59 am-8:35 am

Nonstop1h 36m

Toronto Pearson Intl

Fri 1/9

7:10 am-12:19 pm

1 stop5h 09m

$244

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 1/15

6:59 am-8:35 am

Nonstop1h 36m

Toronto Pearson Intl

Tue 1/20

8:15 am-12:19 pm

1 stop4h 04m

$244

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Fri 1/9

9:40 am-11:17 am

Nonstop1h 37m

Toronto Pearson Intl

Sun 1/11

8:15 am-12:19 pm

1 stop4h 04m

$244

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 1/15

6:59 am-8:35 am

Nonstop1h 36m

Toronto Pearson Intl

Sun 1/18

7:10 am-12:19 pm

1 stop5h 09m

$244

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

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, 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 $105). Flying from Washington, D.C. Reagan-National Airport to Region of Ontario in October is currently the most expensive (average of $232). 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 December 12, 2025.

One of the essential ways to save on airfare from Washington, D.C. Reagan-National Airport to Region of Ontario is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 29% on airfare.

What is the cheapest day to fly from Washington, D.C. Reagan-National Airport to Region of Ontario?

Use this chart to determine the cheapest time to fly round-trip from Reagan-National to Ontario. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. Reagan-National Airport to Region of Ontario flight should consider departing on Friday afternoons when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 December 12, 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 December 12, 2025.
Peruse reviews from past customers who have flown with Porter Airlines, United Airlines, and American Airlines from Washington, D.C. Reagan-National Airport to Ontario to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
398 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.0

Food

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Porter Airlines
8.0
Very good
398 reviews
Porter Airlines
8.0
Very good
398 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.0

Food

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
United Airlines
7.4
Good
9,095 reviews
Porter Airlines
8.0
Very good
398 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.0

Food

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
American Airlines
7.2
Good
11,050 reviews
Porter Airlines
8.0
Very good
398 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.0

Food

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air Canada
7.1
Good
10,517 reviews
Porter Airlines
8.0
Very good
398 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.0

Food

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

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?

    A quick flight from Washington, D.C. Reagan-National Airport to Region of Ontario can take about 1h 47m. Air Canada provides one of the quickest options available for as low as $239. Washington, D.C. Reagan-National Airport and Region of Ontario are separated by a distance of 359 mi. When browsing for deals, the options you’ll see will be for both nonstop 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 $79. However, be on the lookout for offers from Delta 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?

    The most popular flight routes from Washington, D.C. Reagan-National Airport to Region of Ontario are Washington, D.C. Reagan-National - Toronto Pearson Intl, Washington, D.C. Reagan-National - Montreal Pierre Elliott Trudeau Intl and Washington, D.C. Reagan-National - Toronto Island.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. Reagan-National Airport to Region of Ontario 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?

    Looking for the cheapest flight from Washington, D.C. Reagan-National Airport to Region of Ontario? While on average our users pay $540, our data indicates the cheapest price to be $107. The most popular route (Washington, D.C. Reagan-National - Toronto Pearson Intl), is priced around $223.

  • 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 $105). Flying from Washington, D.C. Reagan-National Airport to Region of Ontario in October is currently the most expensive (average of $232). 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 Vancouver Intl flights
Dulles Intl to Pierre Elliott Trudeau Intl flights
Reagan-National to Pierre Elliott Trudeau Intl flights
Baltimore to Vancouver Intl flights
Reagan-National to Vancouver Intl flights
Dulles Intl to Toronto Island flights
Baltimore to Pearson Intl flights
Baltimore to Pierre Elliott Trudeau Intl flights
Dulles Intl to Calgary flights
Baltimore to Calgary flights
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Reagan-National to Toronto Island flights
Dulles Intl to Ottawa flights
Dulles Intl to Québec City flights
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Reagan-National to Québec City flights
Baltimore to Abbotsford flights
Dulles Intl to Winnipeg flights
Baltimore to Québec City flights
Dulles Intl to Halifax flights
Baltimore to Ottawa flights
Baltimore to Toronto Island flights
Reagan-National to Abbotsford flights
Baltimore to Yellowknife flights
Baltimore to Halifax flights
Reagan-National to Halifax flights
Dulles Intl to Edmonton flights
Dulles Intl to St. John's flights
Reagan-National to St. John's flights
Reagan-National to Winnipeg flights
Reagan-National to Edmonton flights
Baltimore to Edmonton flights
Baltimore to Kelowna flights
Reagan-National to Kelowna flights
Dulles Intl to Kelowna flights
Dulles Intl to Victoria flights
Baltimore to Winnipeg flights
Dulles Intl to Moncton flights
Baltimore to St. John's flights
Baltimore to St John flights
Reagan-National to Victoria flights
Baltimore to Victoria flights
Dulles Intl to St John flights
Dulles Intl to Whitehorse flights
Dulles Intl to Charlottetown flights
Reagan-National to Charlottetown flights
Dulles Intl to London flights

Top 4 airlines flying from Reagan-National to Ontario

Discover the top 4 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 2,558,603 searches. Data last updated December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$103Average$399FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$127Average$424FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$196Average$391FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$261Average$375FlexibilityNo cancel feeOn-time71%

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