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$93+ 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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — YYZ
Mar 30 — Apr 61
Sun 3/30
Sun 4/6
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 March 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$190
(Mytrip)

One-way from

$93
(Air Canada)

Popular in

August

Cheapest in

April

Average price

$325

Good round-trip deal

$347 or less

Good one-way deal

$184 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. 1% potential increase in price ($3 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 March 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 March 25, 2025.

This Mytrip deal was found by Cheapflights users on 3/22. 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.
Wed 5/711:00 amDCA - YYZ
Nonstop1h 33mAir Canada
Wed 5/1411:00 amYYZ - DCA
1 stop4h 49mAir Canada
Deal found 3/22$190
This Air Canada deal was found by Cheapflights users on 3/24. 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 4/216:00 amDCA - YTZ
1 stop5h 47mAir Canada
Fri 4/258:25 amYTZ - DCA
1 stop6h 59mAir Canada
Deal found 3/24$191
This American Airlines deal was found by Cheapflights users on 3/23. 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.
Tue 4/1510:10 amDCA - YYZ
Nonstop1h 45mAmerican Airlines
Sat 4/1911:00 amYYZ - DCA
Nonstop1h 40mAmerican Airlines
Deal found 3/23$203
This Delta deal was found by Cheapflights users on 3/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/145:55 pmDCA - YYZ
1 stop4h 56mDelta
Sat 4/196:15 amYYZ - DCA
1 stop6h 25mDelta
Deal found 3/24$233
This United Airlines deal was found by Cheapflights users on 3/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/86:00 amDCA - YYZ
1 stop6h 46mUnited Airlines
Thu 5/84:30 pmYYZ - DCA
Nonstop1h 33mUnited Airlines
Deal found 3/24$252
This United deal was found by Cheapflights users on 3/23. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/191:19 pmDCA - YYZ
1 stop5h 41mMultiple Airlines
Sun 4/208:10 amYYZ - DCA
1 stop3h 51mMultiple Airlines
Deal found 3/23$254
This Air Canada deal was found by Cheapflights users on 3/23. 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.
Sat 6/1411:00 amDCA - YUL
1 stop6h 21mAir Canada
Sat 6/148:00 pmYUL - DCA
Nonstop1h 53mAir Canada
Deal found 3/23$258
This Delta deal was found by Cheapflights users on 3/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/196:15 pmDCA - YUL
1 stop5h 13mDelta
Wed 4/236:02 pmYUL - DCA
1 stop5h 37mDelta
Deal found 3/23$286
This Justfly.com deal was found by Cheapflights users on 3/24. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/210:00 amDCA - YYZ
1 stop6h 05mWestJet
Tue 9/912:15 pmYYZ - DCA
1 stop4h 14mWestJet
Deal found 3/24$291
This United deal was found by Cheapflights users on 3/23. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/209:00 amDCA - YUL
1 stop13h 06mMultiple Airlines
Fri 4/257:15 pmYUL - DCA
Nonstop1h 53mMultiple Airlines
Deal found 3/23$302
This United Airlines deal was found by Cheapflights users on 3/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/94:35 pmDCA - YUL
Nonstop1h 50mUnited Airlines
Sun 5/118:30 amYUL - DCA
Nonstop1h 49mUnited Airlines
Deal found 3/24$313
This American Airlines deal was found by Cheapflights users on 3/23. 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.
Wed 4/166:30 amDCA - YUL
1 stop5h 50mAmerican Airlines
Sat 4/197:47 amYUL - DCA
1 stop3h 59mAmerican Airlines
Deal found 3/23$338

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 March 25, 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

Wed 5/7

11:00 am-12:33 pm

Nonstop1h 33m

Toronto Pearson Intl

Wed 5/14

11:00 am-3:49 pm

1 stop4h 49m

$190

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Mon 4/21

6:00 am-11:47 am

1 stop5h 47m

Toronto Island

Fri 4/25

8:25 am-3:24 pm

1 stop6h 59m

$191

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Tue 4/15

10:10 am-11:55 am

Nonstop1h 45m

Toronto Pearson Intl

Sat 4/19

11:00 am-12:40 pm

Nonstop1h 40m

$203

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Mon 4/14

5:55 pm-10:51 pm

1 stop4h 56m

Toronto Pearson Intl

Sat 4/19

6:15 am-12:40 pm

1 stop6h 25m

$233

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 5/8

6:00 am-12:46 pm

1 stop6h 46m

Toronto Pearson Intl

Thu 5/8

4:30 pm-6:03 pm

Nonstop1h 33m

$252

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Sat 4/19

1:19 pm-7:00 pm

1 stop5h 41m

Toronto Pearson Intl

Sun 4/20

8:10 am-12:01 pm

1 stop3h 51m

$254

Washington, D.C.Montreal

DCA - YUL

DCAYUL

Washington, D.C. Reagan-National

Sat 6/14

11:00 am-5:21 pm

1 stop6h 21m

Montreal Pierre Elliott Trudeau Intl

Sat 6/14

8:00 pm-9:53 pm

Nonstop1h 53m

$258

Washington, D.C.Montreal

DCA - YUL

DCAYUL

Washington, D.C. Reagan-National

Sat 4/19

6:15 pm-11:28 pm

1 stop5h 13m

Montreal Pierre Elliott Trudeau Intl

Wed 4/23

6:02 pm-11:39 pm

1 stop5h 37m

$286

Washington, D.C.Montreal

DCA - YUL

DCAYUL

Washington, D.C. Reagan-National

Sun 4/20

9:00 am-10:06 pm

1 stop13h 06m

Montreal Pierre Elliott Trudeau Intl

Fri 4/25

7:15 pm-9:08 pm

Nonstop1h 53m

$302

Washington, D.C.Montreal

DCA - YUL

DCAYUL

Washington, D.C. Reagan-National

Fri 5/9

4:35 pm-6:25 pm

Nonstop1h 50m

Montreal Pierre Elliott Trudeau Intl

Sun 5/11

8:30 am-10:19 am

Nonstop1h 49m

$313

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 45 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 $243). Flying from Washington, D.C. Reagan-National Airport to Region of Ontario in July is currently the most expensive (average of $359). 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 March 25, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Reagan-National Airport to Region of Ontario as you normally would.

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 March 25, 2025.

The most flights from DCA to CAON are scheduled on a Monday (10 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (8 on average).

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Region of Ontario ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Region of Ontario when rainfall is around 2.0 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

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 March 25, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines and American Airlines from Washington, D.C. to Ontario to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,890 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,890 reviews
Delta
8.0
Very good
7,890 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,605 reviews
Delta
8.0
Very good
7,890 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,890 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
WestJet
7.2
Good
2,785 reviews
Delta
8.0
Very good
7,890 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
TAP AIR PORTUGAL
7.1
Good
1,824 reviews
Delta
8.0
Very good
7,890 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 Air Canada, with whom users have recently found tickets for as low as $93. However, be on the lookout for offers from American Airlines 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?

    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 (62%), PSA Airlines (62%), Air Canada (56%).

  • 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 $2,308, our data indicates the cheapest price to be $102. The most popular route (Washington, D.C. Reagan-National - Toronto Pearson Intl), is priced around $222.

  • 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 $243). Flying from Washington, D.C. Reagan-National Airport to Region of Ontario in July is currently the most expensive (average of $359). 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 Vancouver Intl flights
Dulles Intl to Pearson Intl flights
Dulles Intl to Pierre Elliott Trudeau Intl flights
Reagan-National to Pearson Intl flights
Reagan-National to Pierre Elliott Trudeau Intl flights
Dulles Intl to Calgary flights
Baltimore to Vancouver Intl flights
Dulles Intl to Toronto Island flights
Baltimore to Pearson Intl flights
Baltimore to Pierre Elliott Trudeau Intl flights
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Baltimore to Calgary flights
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Dulles Intl to Ottawa flights
Reagan-National to Halifax flights
Dulles Intl to Abbotsford flights
Dulles Intl to Halifax flights
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Reagan-National to Ottawa flights
Dulles Intl to Québec City flights
Reagan-National to Québec City flights
Baltimore to Toronto Island flights
Baltimore to Ottawa flights
Baltimore to Abbotsford flights
Baltimore to Québec City flights
Dulles Intl to St. John's flights
Dulles Intl to Winnipeg flights
Reagan-National to St. John's flights
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Baltimore to St. John's flights
Baltimore to Edmonton flights
Reagan-National to Winnipeg flights
Baltimore to Winnipeg flights
Dulles Intl to Victoria flights
Dulles Intl to Charlottetown flights
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Reagan-National to Abbotsford flights
Baltimore to Victoria flights
Baltimore to Kelowna flights
Reagan-National to Victoria flights
Reagan-National to Charlottetown flights
Dulles Intl to Deer Lake flights
Dulles Intl to Hamilton flights
Reagan-National to Deer Lake flights
Dulles Intl to Kelowna flights
Dulles Intl to Fort McMurray flights
Reagan-National to Kelowna flights
Baltimore 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 March 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$117Average$355FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$140Average$400FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$145Average$352FlexibilityNo cancel feeOn-time71%
Porter AirlinesCheapest$272Average$388FlexibilityNo cancel feeOn-time52%
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