Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Washington, D.C. Reagan-National Airport to Ontario from C$ 126

DCA — YYZ
12 Oct — 19 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Reagan-National to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Reagan-National to Ontario

Thu 15/106:00 a.m. -
1 stop4h 33m
Mon 19/108:00 a.m. -
1 stop4h 09m
Deal found 6/9C$ 269
Thu 29/106:55 p.m. -
Nonstop1h 33m
Sun 1/118:05 a.m. -
1 stop4h 14m
Deal found 10/9C$ 270
Sat 31/1012:55 p.m. -
1 stop5h 24m
Sun 1/118:20 a.m. -
1 stop3h 59m
Deal found 10/9C$ 270
Thu 29/106:55 p.m. -
Nonstop1h 33m
Thu 5/116:20 p.m. -
Nonstop1h 38m
Deal found 9/9C$ 272
Sat 24/1012:50 p.m. -
1 stop5h 30m
Sat 31/108:20 a.m. -
1 stop3h 59m
Deal found 8/9C$ 272
Mon 19/1011:00 a.m. -
Nonstop1h 26m
Fri 23/108:55 p.m. -
Nonstop1h 39m
Deal found 11/9C$ 273
Mon 19/1012:50 p.m. -
1 stop5h 30m
Fri 23/108:20 a.m. -
1 stop3h 49m
Deal found 11/9C$ 273
Thu 29/1012:55 p.m. -
1 stop5h 24m
Thu 5/118:20 a.m. -
1 stop3h 59m
Deal found 9/9C$ 274
Fri 23/108:40 p.m. -
Nonstop1h 31m
Mon 26/106:20 p.m. -
Nonstop1h 38m
Deal found 9/9C$ 277
Tue 27/1011:05 a.m. -
1 stop4h 51m
Fri 30/108:20 a.m. -
1 stop3h 59m
Deal found 9/9C$ 278
Fri 23/1012:50 p.m. -
1 stop5h 30m
Fri 30/108:20 a.m. -
1 stop3h 59m
Deal found 8/9C$ 280
Sat 31/106:59 a.m. -
Nonstop1h 33m
Sun 1/117:20 a.m. -
Nonstop1h 38m
Deal found 10/9C$ 281

Find flight deals from Reagan-National to Ontario

Round-trip from

C$ 269

One-way from

C$ 126

Popular in

May

Cheapest in

January

Average price

C$ 396

Good round-trip deal

C$ 333 or less

Good one-way deal

C$ 136 or less
Air Canada
  • Air Canada
  • 15/10-19/10
  • 2 total stops
  • 8h 42m total
  • Washington, D.C. to Ontario
Search Deals
Air Canada
  • Air Canada
  • 22/10-31/12
  • Nonstop
  • 1h 31m total
  • Washington, D.C. to Ontario
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 16 potential increase over avg. RT price).
Search Deals
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 2026
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

 
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Toronto

DCA Washington, D.C. Reagan-National - YYZ Toronto Pearson Intl

DCAYYZ

Washington, D.C. Reagan-National

Fri 11/12

7:20 p.m.-11:07 p.m.

1 stop3h 47m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 133

Washington, D.C.Toronto

DCA Washington, D.C. Reagan-National - YYZ Toronto Pearson Intl

DCAYYZ

Washington, D.C. Reagan-National

Mon 12/10

6:00 a.m.-10:33 a.m.

1 stop4h 33m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 140

Washington, D.C.Toronto

DCA Washington, D.C. Reagan-National - YYZ Toronto Pearson Intl

DCAYYZ

Washington, D.C. Reagan-National

Mon 26/10

7:20 p.m.-11:36 p.m.

1 stop4h 16m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 140

Washington, D.C.Toronto

DCA Washington, D.C. Reagan-National - YYZ Toronto Pearson Intl

DCAYYZ

Washington, D.C. Reagan-National

Thu 8/10

11:00 a.m.-6:09 p.m.

1 stop7h 09m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 140

Washington, D.C.Toronto

DCA Washington, D.C. Reagan-National - YYZ Toronto Pearson Intl

DCAYYZ

Washington, D.C. Reagan-National

Fri 2/10

8:25 a.m.-4:13 p.m.

1 stop7h 48m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 140

Washington, D.C.Toronto

DCA Washington, D.C. Reagan-National - YYZ Toronto Pearson Intl

DCAYYZ

Washington, D.C. Reagan-National

Thu 24/9

6:10 a.m.-1:34 p.m.

1 stop7h 24m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 140

Washington, D.C.Toronto

DCA Washington, D.C. Reagan-National - YTZ Toronto Island

DCAYTZ

Washington, D.C. Reagan-National

Tue 22/9

12:55 p.m.-6:20 p.m.

1 stop5h 25m

Toronto Island

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 141

Washington, D.C.Toronto

DCA Washington, D.C. Reagan-National - YTZ Toronto Island

DCAYTZ

Washington, D.C. Reagan-National

Fri 11/12

6:00 a.m.-3:04 p.m.

2 stops9h 04m

Toronto Island

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 143

Washington, D.C.Toronto

DCA Washington, D.C. Reagan-National - YTZ Toronto Island

DCAYTZ

Washington, D.C. Reagan-National

Mon 12/10

6:00 a.m.-11:50 a.m.

1 stop5h 50m

Toronto Island

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 148

Washington, D.C.Toronto

DCA Washington, D.C. Reagan-National - YYZ Toronto Pearson Intl

DCAYYZ

Washington, D.C. Reagan-National

Fri 20/11

6:05 a.m.-1:24 p.m.

1 stop7h 19m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 193

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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

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, April 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$ 434). Flying from Washington, D.C. Reagan-National Airport to Region of Ontario in July is currently the most expensive (average of C$ 571). 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?

It’s typically best to fly out from Washington, D.C. Reagan-National Airport to Region of Ontario in the evening. Doing so could potentially save you 13% on the flight price compared to flying at noon, which is usually more expensive.

Weekly flight availability from Washington, D.C. Reagan-National Airport to Region of Ontario

The most flights from DCA to CAON are scheduled on a Monday (16 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 on average).

How much does it cost to fly round-trip from Washington, D.C. Reagan-National Airport to Region of Ontario?

Airfare is below average for this route at the moment.
Washington, D.C. Reagan-National Airport to Region of Ontario flights typically cost between C$ 382 and C$ 788 in October.
The cheapest round-trip price found within the last 5 days was C$ 270 on Air Canada (29 Oct-1 Nov).

How far ahead should I book a flight from Washington, D.C. Reagan-National Airport to Region of Ontario?

The best time to book flights from Washington, D.C. Reagan-National Airport to Region of Ontario is 61 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

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

Reviews of airlines servicing Ontario

Get a feel of what it's like to fly with American 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.
American Airlines
7.1
Good
12,051 reviews
Check prices

Boarding

7.4

Crew

7.9

Food

6.4

Comfort

7.2

Entertainment

6.8

Overall

7.1

Reviews

1 / 20
6.0
Good

Kristin,Jul 2026

DCA - PHX

We got delayed because of filling up more gas then a storm hit after that so we sat in the plane for 1.5 hours more. It was hot while we waited.
American Airlines
7.1
Good
12,051 reviews
American Airlines
7.1
Good
12,051 reviews
Check prices

Boarding

7.4

Crew

7.9

Food

6.4

Comfort

7.2

Entertainment

6.8

Overall

7.1

Reviews

1 / 20
6.0
Good

Kristin,Jul 2026

DCA - PHX

We got delayed because of filling up more gas then a storm hit after that so we sat in the plane for 1.5 hours more. It was hot while we waited.
Air Canada
7.1
Good
11,617 reviews
American Airlines
7.1
Good
12,051 reviews
Check prices

Boarding

7.4

Crew

7.9

Food

6.4

Comfort

7.2

Entertainment

6.8

Overall

7.1

Reviews

1 / 20
6.0
Good

Kristin,Jul 2026

DCA - PHX

We got delayed because of filling up more gas then a storm hit after that so we sat in the plane for 1.5 hours more. It was hot while we waited.

Related info for your journey

  • 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 51m. 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 - Montreal Pierre Elliott Trudeau Intl, Washington, D.C. Reagan-National - Toronto Pearson Intl or Washington, D.C. Reagan-National - Toronto Island 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 (64%), Porter Airlines (64%), PSA Airlines( 64%).

  • 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$ 296, our data shows the cheapest flight currently is C$ 86. When looking at the most popular route, (Washington, D.C. Reagan-National - Montreal Pierre Elliott Trudeau Intl), you can expect to pay C$ 417 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, April 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$ 434). Flying from Washington, D.C. Reagan-National Airport to Region of Ontario in July is currently the most expensive (average of C$ 571). 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

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from Reagan-National to Ontario

AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 227AverageC$ 552FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapestC$ 321AverageC$ 486FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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.

Can Cheapflights notify me if prices for flights from Reagan-National to Ontario become cheaper?

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.