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$106+ 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 1/19. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — YYZ
nov. 28 — dic. 51
vie. 11/28
vie. 12/5
1 adult, Economy
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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 octubre 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$219
(Flightnetwork)

One-way from

$106
(SmartFares)

Popular in

October

Cheapest in

June

Average price

$319

Good round-trip deal

$292 or less

Good one-way deal

$166 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Toronto (YTO) flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Toronto (YTO) flights.
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From Washington, D.C. Reagan-National to Ontario
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One-way flight from Washington, D.C. Reagan-National to Ontario
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Highest demand for flights based on searches. 4% potential increase in price ($12 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 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

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 octubre 29, 2025.

This Flightnetwork deal was found by Cheapflights users on 10/28. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/266:00 amDCA - YTZ
1 stop5h 55mAir Canada
vie. 11/288:30 amYTZ - DCA
1 stop7h 01mAir Canada
Deal found 10/28$219
This Flightnetwork deal was found by Cheapflights users on 10/27. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/2012:55 pmDCA - YTZ
1 stop5h 18mAir Canada
dom. 11/235:30 pmYTZ - DCA
1 stop4h 26mAir Canada
Deal found 10/27$220
This Flightnetwork deal was found by Cheapflights users on 10/28. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/266:00 amDCA - YYZ
1 stop5h 40mAir Canada
vie. 11/285:00 pmYYZ - DCA
1 stop4h 56mAir Canada
Deal found 10/28$224
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/206:00 amDCA - YYZ
1 stop4h 49mAir Canada
dom. 11/236:20 amYYZ - DCA
1 stop4h 06mAir Canada
Deal found 10/28$225
This flugladen.de deal was found by Cheapflights users on 10/27. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/296:00 amDCA - YTZ
1 stop5h 55mAir Canada
sáb. 12/65:30 pmYTZ - DCA
1 stop4h 26mAir Canada
Deal found 10/27$232
This flugladen.de deal was found by Cheapflights users on 10/27. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/296:59 amDCA - YYZ
Nonstop1h 36mAir Canada
sáb. 12/64:30 pmYYZ - DCA
Nonstop1h 35mAir Canada
Deal found 10/27$239
This Booking.com deal was found by Cheapflights users on 10/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/294:10 pmDCA - YYZ
1 stop5h 34mAir Canada
vie. 12/59:00 amYYZ - DCA
1 stop6h 31mAir Canada
Deal found 10/27$240
This Air Canada deal was found by Cheapflights users on 10/29. 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.
mar. 12/212:55 pmDCA - YYZ
1 stop4h 41mAir Canada
mar. 12/29:00 pmYYZ - DCA
Nonstop1h 35mAir Canada
Deal found 10/29$246
This Booking.com deal was found by Cheapflights users on 10/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/286:50 pmDCA - YYZ
Nonstop1h 37mAir Canada
vie. 12/59:00 amYYZ - DCA
1 stop6h 31mAir Canada
Deal found 10/27$247
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/146:00 amDCA - YYZ
1 stop4h 49mAir Canada
mar. 11/187:20 amYYZ - DCA
Nonstop1h 35mAir Canada
Deal found 10/28$249
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/276:59 amDCA - YYZ
Nonstop1h 36mAir Canada
sáb. 11/296:20 amYYZ - DCA
1 stop4h 06mAir Canada
Deal found 10/28$250
This Booking.com deal was found by Cheapflights users on 10/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/3011:05 amDCA - YTZ
1 stop5h 50mAir Canada
sáb. 12/65:30 pmYTZ - DCA
1 stop4h 26mAir Canada
Deal found 10/27$253

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 octubre 29, 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

mié. 11/26

6:00 am-11:55 am

1 stop5h 55m

Toronto Island

vie. 11/28

8:30 am-3:31 pm

1 stop7h 01m

$219

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

jue. 11/20

12:55 pm-6:13 pm

1 stop5h 18m

Toronto Island

dom. 11/23

8:30 am-3:31 pm

1 stop7h 01m

$220

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

mié. 11/26

6:59 am-8:35 am

Nonstop1h 36m

Toronto Pearson Intl

vie. 11/28

5:00 pm-9:56 pm

1 stop4h 56m

$226

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

mar. 2/24

6:00 am-11:55 am

1 stop5h 55m

Toronto Island

vie. 2/27

10:45 am-3:31 pm

1 stop4h 46m

$248

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

mar. 11/25

7:30 am-2:01 pm

1 stop6h 31m

Toronto Pearson Intl

mar. 11/25

4:30 pm-6:05 pm

Nonstop1h 35m

$250

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

sáb. 11/22

8:40 pm-10:17 pm

Nonstop1h 37m

Toronto Pearson Intl

mar. 11/25

9:00 pm-10:35 pm

Nonstop1h 35m

$264

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

sáb. 12/6

7:00 am-1:43 pm

1 stop6h 43m

Toronto Pearson Intl

sáb. 12/6

5:30 pm-11:59 pm

1 stop6h 29m

$266

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

dom. 2/15

7:00 pm-9:58 am

1 stop14h 58m

Toronto Pearson Intl

lun. 2/16

12:45 pm-5:33 pm

1 stop4h 48m

$266

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

lun. 11/17

12:55 pm-6:13 pm

1 stop5h 18m

Toronto Island

mié. 11/19

10:30 am-3:31 pm

1 stop5h 01m

$268

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

lun. 11/24

12:55 pm-6:13 pm

1 stop5h 18m

Toronto Island

vie. 11/28

10:30 am-3:31 pm

1 stop5h 01m

$268

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

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 $221). 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 octubre 29, 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. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 octubre 29, 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
384 reviews

Entertainment

7.0

Comfort

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Porter Airlines
8.0
Very good
384 reviews
Porter Airlines
8.0
Very good
384 reviews

Entertainment

7.0

Comfort

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
United Airlines
7.4
Good
9,001 reviews
Porter Airlines
8.0
Very good
384 reviews

Entertainment

7.0

Comfort

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
American Airlines
7.2
Good
11,032 reviews
Porter Airlines
8.0
Very good
384 reviews

Entertainment

7.0

Comfort

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Canada
7.1
Good
10,372 reviews
Porter Airlines
8.0
Very good
384 reviews

Entertainment

7.0

Comfort

8.0

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

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 5h 55m. Air Canada provides one of the quickest options available for as low as $219. Washington, D.C. Reagan-National Airport and Region of Ontario are separated by a distance of 352 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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: 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?

    Looking for the cheapest flight from Washington, D.C. Reagan-National Airport to Region of Ontario? While on average our users pay $389, our data indicates the cheapest price to be $107. The most popular route (Washington, D.C. Reagan-National - Toronto Pearson Intl), is priced around $246.

  • 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 $221). 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
Reagan-National to Pierre Elliott Trudeau Intl flights
Dulles Intl to Pearson Intl flights
Dulles Intl to Vancouver Intl flights
Dulles Intl to Toronto Island flights
Baltimore to Pearson Intl flights
Reagan-National to Vancouver Intl flights
Baltimore to Vancouver Intl flights
Baltimore to Pierre Elliott Trudeau Intl flights
Dulles Intl to Calgary flights
Reagan-National to Calgary flights
Baltimore to Calgary flights
Dulles Intl to Québec City flights
Reagan-National to Toronto Island flights
Dulles Intl to Ottawa flights
Reagan-National to Québec City flights
Baltimore to Abbotsford flights
Dulles Intl to Abbotsford flights
Baltimore to Toronto Island flights
Reagan-National to Ottawa flights
Reagan-National to Abbotsford flights
Baltimore to Québec City flights
Baltimore to Edmonton flights
Baltimore to Ottawa flights
Dulles Intl to Halifax flights
Dulles Intl to Edmonton flights
Dulles Intl to Winnipeg flights
Baltimore to Winnipeg flights
Reagan-National to Halifax flights
Baltimore to Halifax flights
Baltimore to Yellowknife flights
Reagan-National to Edmonton flights
Dulles Intl to Kelowna flights
Reagan-National to Winnipeg flights
Dulles Intl to Saskatoon flights
Baltimore to Kelowna flights
Reagan-National to Kelowna flights
Baltimore to Regina flights
Reagan-National to St. John's flights
Dulles Intl to St. John's flights
Dulles Intl to Victoria flights
Reagan-National to Saskatoon flights
Baltimore to Saskatoon flights
Reagan-National to Victoria flights
Baltimore to Victoria flights
Reagan-National to Regina flights
Dulles Intl to Regina flights
Baltimore to St. John's 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 octubre 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$103Average$353FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$127Average$439FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$187Average$391FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$253Average$394FlexibilityNo cancel feeOn-time71%

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