What is the cheapest airline that flies from District of Columbia to Ontario?

Porter Airlines, Air Canada, and United Airlines are the most popular carriers operating from District of Columbia to Ontario

Which airlines fly to Region of Ontario?

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to Region of Ontario from District of Columbia according to our data. Air Canada is the first choice among our users, with 54% of people opting to fly with this airline when travelling to Region of Ontario. Keep in mind that there are 4 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from District of Columbia to Ontario?

Prices for flights from District of Columbia to Ontario are updated daily.

How many operators does momondo search for flights from District of Columbia to Ontario?

As of September 2026, there are 4 operators available to choose from for flights from District of Columbia to Ontario.

How old do you have to be to fly from District of Columbia to Ontario?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia to Ontario.

What documentation or ID do you need to fly to Ontario?

The required travel and health documents for your Ontario trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

C$ 123 Cheap Flights from District of Columbia to Ontario in 2026/27

Q: How many flights depart from District of Columbia to Region of Ontario on average per day?

The number of flights available between District of Columbia and Region of Ontario is 48 per day as of September 2026. The most frequent departure time is 5:00p.m., with 45% of daily flights leaving in the afternoon.

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from District of Columbia to Ontario

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:59 a.m. - 8:35 a.m.DCA Washington, D.C. Reagan-National-YYZ Toronto Pearson Intl

1h 36mdirect

8:05 a.m. - 12:19 p.m.YYZ Toronto Pearson Intl-DCA Washington, D.C. Reagan-National

4h 14m1 stop Ottawa

C$ 278Air Canada

Thu, 22 Oct - Mon, 26 Oct

11:20 a.m. - 12:52 p.m.IAD Washington, D.C. Dulles Intl-YTZ Toronto Island

1h 32mdirect

4:15 p.m. - 5:43 p.m.YTZ Toronto Island-IAD Washington, D.C. Dulles Intl

1h 28mdirect

C$ 278Porter Airlines

Thu, 29 Oct - Sun, 15 Nov

11:20 a.m. - 12:52 p.m.IAD Washington, D.C. Dulles Intl-YTZ Toronto Island

1h 32mdirect

9:10 a.m. - 10:38 a.m.YTZ Toronto Island-IAD Washington, D.C. Dulles Intl

1h 28mdirect

C$ 278Porter Airlines

Mon, 30 Nov - Mon, 7 Dec

6:59 a.m. - 8:32 a.m.DCA Washington, D.C. Reagan-National-YYZ Toronto Pearson Intl

1h 33mdirect

7:20 a.m. - 8:58 a.m.YYZ Toronto Pearson Intl-DCA Washington, D.C. Reagan-National

1h 38mdirect

C$ 281Air Canada

Thu, 5 Nov - Thu, 12 Nov

6:11 a.m. - 4:47 p.m.IAD Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl

10h 36m1 stop Chicago O'Hare Intl

7:44 p.m. - 9:26 p.m.YYZ Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl

1h 42mdirect

C$ 311United Airlines

Sat, 31 Oct - Sat, 31 Oct

8:23 a.m. - 4:47 p.m.IAD Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl

8h 24m1 stop Chicago O'Hare Intl

7:44 p.m. - 9:26 p.m.YYZ Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl

1h 42mdirect

C$ 311United Airlines

Thu, 29 Oct - Thu, 29 Oct

10:30 a.m. - 3:46 p.m.DCA Washington, D.C. Reagan-National-YYZ Toronto Pearson Intl

5h 16m1 stop Chicago O'Hare Intl

6:25 p.m. - 7:59 p.m.YYZ Toronto Pearson Intl-DCA Washington, D.C. Reagan-National

1h 34mdirect

C$ 311Multiple Airlines

Thu, 15 Oct - Thu, 15 Oct

10:30 a.m. - 5:56 p.m.DCA Washington, D.C. Reagan-National-YYZ Toronto Pearson Intl

7h 26m1 stop Chicago O'Hare Intl

8:55 p.m. - 10:34 p.m.YYZ Toronto Pearson Intl-DCA Washington, D.C. Reagan-National

1h 39mdirect

C$ 311Multiple Airlines

Tue, 6 Oct - Tue, 6 Oct

2:40 p.m. - 4:34 p.m.DCA Washington, D.C. Reagan-National-YYZ Toronto Pearson Intl

1h 54mdirect

5:14 p.m. - 7:13 p.m.YYZ Toronto Pearson Intl-DCA Washington, D.C. Reagan-National

1h 59mdirect

C$ 330American Airlines

Thu, 3 Dec - Sat, 5 Dec

10:16 a.m. - 11:59 a.m.DCA Washington, D.C. Reagan-National-YYZ Toronto Pearson Intl

1h 43mdirect

5:14 p.m. - 7:13 p.m.YYZ Toronto Pearson Intl-DCA Washington, D.C. Reagan-National

1h 59mdirect

C$ 330American Airlines

Wed, 4 Nov - Wed, 11 Nov

Cheap last-minute flights

Enter your travel dates to find the best prices.

5:20 p.m. - 6:51 p.m.IAD Washington, D.C. Dulles Intl-YTZ Toronto Island

1h 31mdirect

3:15 p.m. - 4:42 p.m.YTZ Toronto Island-IAD Washington, D.C. Dulles Intl

1h 27mdirect

C$ 371Air Canada

Tue, 29 Sep - Sat, 3 Oct

11:25 a.m. - 12:55 p.m.IAD Washington, D.C. Dulles Intl-YTZ Toronto Island

1h 30mdirect

8:30 a.m. - 2:57 p.m.YTZ Toronto Island-IAD Washington, D.C. Dulles Intl

6h 27m1 stop Montreal Pierre Elliott Trudeau Intl

C$ 425Multiple Airlines

Thu, 1 Oct - Fri, 16 Oct

3:50 p.m. - 5:20 p.m.IAD Washington, D.C. Dulles Intl-YTZ Toronto Island

1h 30mdirect

1:40 p.m. - 3:10 p.m.YTZ Toronto Island-IAD Washington, D.C. Dulles Intl

1h 30mdirect

C$ 438Multiple Airlines

Thu, 1 Oct - Fri, 16 Oct

11:25 a.m. - 12:55 p.m.IAD Washington, D.C. Dulles Intl-YTZ Toronto Island

1h 30mdirect

9:15 a.m. - 10:45 a.m.YTZ Toronto Island-IAD Washington, D.C. Dulles Intl

1h 30mdirect

C$ 469Porter Airlines

Tue, 29 Sep - Sat, 17 Oct

11:25 a.m. - 12:55 p.m.IAD Washington, D.C. Dulles Intl-YTZ Toronto Island

1h 30mdirect

9:15 a.m. - 10:45 a.m.YTZ Toronto Island-IAD Washington, D.C. Dulles Intl

1h 30mdirect

C$ 469Porter Airlines

Tue, 29 Sep - Fri, 16 Oct

10:19 p.m. - 11:54 p.m.IAD Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl

1h 35mdirect

12:45 p.m. - 2:22 p.m.YYZ Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl

1h 37mdirect

C$ 539United Airlines

Wed, 30 Sep - Wed, 7 Oct

10:19 p.m. - 11:54 p.m.IAD Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl

1h 35mdirect

2:30 p.m. - 4:07 p.m.YYZ Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl

1h 37mdirect

C$ 539United Airlines

Tue, 29 Sep - Wed, 7 Oct

6:59 a.m. - 8:35 a.m.DCA Washington, D.C. Reagan-National-YYZ Toronto Pearson Intl

1h 36mdirect

8:55 p.m. - 10:34 p.m.YYZ Toronto Pearson Intl-DCA Washington, D.C. Reagan-National

1h 39mdirect

C$ 539Air Canada

Wed, 30 Sep - Mon, 5 Oct

10:15 a.m. - 11:59 a.m.DCA Washington, D.C. Reagan-National-YYZ Toronto Pearson Intl

1h 44mdirect

2:24 p.m. - 4:09 p.m.YYZ Toronto Pearson Intl-DCA Washington, D.C. Reagan-National

1h 45mdirect

C$ 554American Airlines

Tue, 29 Sep - Thu, 8 Oct

3:00 p.m. - 4:45 p.m.DCA Washington, D.C. Reagan-National-YYZ Toronto Pearson Intl

1h 45mdirect

5:29 p.m. - 7:17 p.m.YYZ Toronto Pearson Intl-DCA Washington, D.C. Reagan-National

1h 48mdirect

C$ 562American Airlines

Tue, 29 Sep - Sat, 17 Oct

Cheap direct flights

Enter your travel dates to find the best prices.

11:20 a.m. - 12:52 p.m.IAD Washington, D.C. Dulles Intl-YTZ Toronto Island

1h 32mdirect

4:15 p.m. - 5:43 p.m.YTZ Toronto Island-IAD Washington, D.C. Dulles Intl

1h 28mdirect

C$ 278Porter Airlines

Thu, 29 Oct - Sun, 15 Nov

11:20 a.m. - 12:52 p.m.IAD Washington, D.C. Dulles Intl-YTZ Toronto Island

1h 32mdirect

9:10 a.m. - 10:38 a.m.YTZ Toronto Island-IAD Washington, D.C. Dulles Intl

1h 28mdirect

C$ 278Porter Airlines

Mon, 30 Nov - Mon, 7 Dec

6:59 a.m. - 8:32 a.m.DCA Washington, D.C. Reagan-National-YYZ Toronto Pearson Intl

1h 33mdirect

7:20 a.m. - 8:58 a.m.YYZ Toronto Pearson Intl-DCA Washington, D.C. Reagan-National

1h 38mdirect

C$ 281Air Canada

Thu, 5 Nov - Thu, 12 Nov

9:40 a.m. - 11:13 a.m.DCA Washington, D.C. Reagan-National-YYZ Toronto Pearson Intl

1h 33mdirect

7:20 a.m. - 8:58 a.m.YYZ Toronto Pearson Intl-DCA Washington, D.C. Reagan-National

1h 38mdirect

C$ 282Air Canada

Sat, 7 Nov - Sun, 8 Nov

10:19 p.m. - 11:54 p.m.IAD Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl

1h 35mdirect

7:44 p.m. - 9:26 p.m.YYZ Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl

1h 42mdirect

C$ 330United Airlines

Sat, 24 Oct - Tue, 27 Oct

12:39 p.m. - 2:25 p.m.IAD Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl

1h 46mdirect

2:45 p.m. - 4:24 p.m.YYZ Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl

1h 39mdirect

C$ 330United Airlines

Wed, 25 Nov - Wed, 2 Dec

2:40 p.m. - 4:34 p.m.DCA Washington, D.C. Reagan-National-YYZ Toronto Pearson Intl

1h 54mdirect

5:14 p.m. - 7:13 p.m.YYZ Toronto Pearson Intl-DCA Washington, D.C. Reagan-National

1h 59mdirect

C$ 330American Airlines

Thu, 3 Dec - Sat, 5 Dec

10:16 a.m. - 11:59 a.m.DCA Washington, D.C. Reagan-National-YYZ Toronto Pearson Intl

1h 43mdirect

5:14 p.m. - 7:13 p.m.YYZ Toronto Pearson Intl-DCA Washington, D.C. Reagan-National

1h 59mdirect

C$ 330American Airlines

Wed, 4 Nov - Wed, 11 Nov

8:28 a.m. - 10:04 a.m.IAD Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl

1h 36mdirect

6:40 p.m. - 8:10 p.m.YYZ Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl

1h 30mdirect

C$ 330Multiple Airlines

Thu, 22 Oct - Mon, 26 Oct

10:10 p.m. - 11:52 p.m.IAD Washington, D.C. Dulles Intl-YYZ Toronto Pearson Intl

1h 42mdirect

2:15 p.m. - 3:45 p.m.YYZ Toronto Pearson Intl-IAD Washington, D.C. Dulles Intl

1h 30mdirect

C$ 330Multiple Airlines

Sun, 25 Oct - Sat, 31 Oct

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United Airlines flights from District of Columbia to Region of Ontario

Our best United Airlines deals on District of Columbia to Region of Ontario flight tickets

United Airlines

27 Nov

IAD12:39 p.m.Washington, D.C. Dulles Intl

1h 46m

YYZ2:25 p.m.Toronto Pearson Intl

27 Nov

YYZ5:55 p.m.Toronto Pearson Intl

6h 35m

1 stop

IAD12:30 a.m.Washington, D.C. Dulles Intl

C$ 319

United Airlines

14 Oct

IAD6:10 a.m.Washington, D.C. Dulles Intl

9h 36m

1 stop

YYZ3:46 p.m.Toronto Pearson Intl

14 Oct

YYZ7:43 p.m.Toronto Pearson Intl

1h 41m

IAD9:24 p.m.Washington, D.C. Dulles Intl

C$ 326

United Airlines

7 Oct

IAD8:28 a.m.Washington, D.C. Dulles Intl

1h 36m

YYZ10:04 a.m.Toronto Pearson Intl

4 Nov

YYZ7:44 p.m.Toronto Pearson Intl

1h 42m

IAD9:26 p.m.Washington, D.C. Dulles Intl

C$ 330

Air Canada flights from District of Columbia to Region of Ontario

Our best Air Canada deals on District of Columbia to Region of Ontario flight tickets

Air Canada

22 Oct

DCA6:59 a.m.Washington, D.C. Reagan-National

1h 36m

YYZ8:35 a.m.Toronto Pearson Intl

26 Oct

YYZ8:05 a.m.Toronto Pearson Intl

4h 14m

1 stop

DCA12:19 p.m.Washington, D.C. Reagan-National

C$ 278

Air Canada

5 Nov

DCA6:59 a.m.Washington, D.C. Reagan-National

1h 33m

YYZ8:32 a.m.Toronto Pearson Intl

12 Nov

YYZ7:20 a.m.Toronto Pearson Intl

1h 38m

DCA8:58 a.m.Washington, D.C. Reagan-National

C$ 281

Air Canada

7 Nov

DCA9:40 a.m.Washington, D.C. Reagan-National

1h 33m

YYZ11:13 a.m.Toronto Pearson Intl

8 Nov

YYZ7:20 a.m.Toronto Pearson Intl

1h 38m

DCA8:58 a.m.Washington, D.C. Reagan-National

C$ 282

momondo Fare Finder

Use the filters below to find and compare flights from District of Columbia 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

Thu 22/10

6:59 a.m.-8:35 a.m.

Nonstop1h 36m

Toronto Pearson Intl

Mon 26/10

8:05 a.m.-12:19 p.m.

1 stop4h 14m

C$ 278

Quickest round-trip

Washington, D.C.Toronto

IAD Washington, D.C. Dulles Intl - YTZ Toronto Island

IADYTZ

Washington, D.C. Dulles Intl

Thu 29/10

11:20 a.m.-12:52 p.m.

Nonstop1h 32m

Toronto Island

Sun 15/11

4:15 p.m.-5:43 p.m.

Nonstop1h 28m

C$ 278

Washington, D.C.Toronto

IAD Washington, D.C. Dulles Intl - YTZ Toronto Island

IADYTZ

Washington, D.C. Dulles Intl

Mon 30/11

11:20 a.m.-12:52 p.m.

Nonstop1h 32m

Toronto Island

Mon 7/12

9:10 a.m.-10:38 a.m.

Nonstop1h 28m

C$ 278

Washington, D.C.Toronto

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

DCAYYZ

Washington, D.C. Reagan-National

Thu 5/11

6:59 a.m.-8:32 a.m.

Nonstop1h 33m

Toronto Pearson Intl

Thu 12/11

7:20 a.m.-8:58 a.m.

Nonstop1h 38m

C$ 281

Washington, D.C.Toronto

IAD Washington, D.C. Dulles Intl - YYZ Toronto Pearson Intl

IADYYZ

Washington, D.C. Dulles Intl

Sat 31/10

6:11 a.m.-4:47 p.m.

1 stop10h 36m

Toronto Pearson Intl

Sat 31/10

7:44 p.m.-9:26 p.m.

Nonstop1h 42m

C$ 311

Washington, D.C.Toronto

IAD Washington, D.C. Dulles Intl - YYZ Toronto Pearson Intl

IADYYZ

Washington, D.C. Dulles Intl

Thu 29/10

8:23 a.m.-4:47 p.m.

1 stop8h 24m

Toronto Pearson Intl

Thu 29/10

7:44 p.m.-9:26 p.m.

Nonstop1h 42m

C$ 311

Washington, D.C.Toronto

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

DCAYYZ

Washington, D.C. Reagan-National

Thu 15/10

10:30 a.m.-3:46 p.m.

1 stop5h 16m

Toronto Pearson Intl

Thu 15/10

6:25 p.m.-7:59 p.m.

Nonstop1h 34m

C$ 311

Washington, D.C.Toronto

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

DCAYYZ

Washington, D.C. Reagan-National

Tue 6/10

10:30 a.m.-5:56 p.m.

1 stop7h 26m

Toronto Pearson Intl

Tue 6/10

8:55 p.m.-10:34 p.m.

Nonstop1h 39m

C$ 311

Washington, D.C.Toronto

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

DCAYYZ

Washington, D.C. Reagan-National

Thu 3/12

2:40 p.m.-4:34 p.m.

Nonstop1h 54m

Toronto Pearson Intl

Sat 5/12

5:14 p.m.-7:13 p.m.

Nonstop1h 59m

C$ 330

Washington, D.C.Toronto

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

DCAYYZ

Washington, D.C. Reagan-National

Wed 4/11

10:16 a.m.-11:59 a.m.

Nonstop1h 43m

Toronto Pearson Intl

Wed 11/11

5:14 p.m.-7:13 p.m.

Nonstop1h 59m

C$ 330

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from District of Columbia to Region of Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Region of Ontario?

In general, December is the cheapest month to fly from District of Columbia to Region of Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 438. If you are unable to visit Region of Ontario during the month of December, then departing from District of Columbia during the month January is also very affordable. Most momondo users find prices during this month for around C$ 438.

What is the cheapest day to depart on your flight to Region of Ontario?

The cheapest day to depart from District of Columbia to Region of Ontario is on a Monday. Travellers who choose to depart for Region of Ontario on a Monday will often find tickets for as low as C$ 399. The most expensive day to fly to Region of Ontario is Thursday, with ticket prices averaging around C$ 502.

What is the cheapest time of day to depart on your flight to Region of Ontario?

Our most recent data shows that the best time of day to fly to Region of Ontario is in the afternoon. Flights from District of Columbia to Region of Ontario during this time can be as low as C$ 417. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 613 on average. Flights to Region of Ontario from District of Columbia at noon are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest District of Columbia to Ontario flight route?

Fly from Washington, D.C. Reagan-National to Toronto Pearson Intl for the best District of Columbia - Ontario flight prices

How far in advance should I book a flight from District of Columbia to Ontario?

You are more likely to see cheaper flights to Region of Ontario from District of Columbia when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around C$ 531 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Region of Ontario from District of Columbia for as low as C$ 378 on momondo.

What cabin class options are available on District of Columbia to Region of Ontario flights?

There are 3 cabin classes available to choose from on District of Columbia to Region of Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on District of Columbia to Region of Ontario flights?

No. A direct flight is the cheapest option for a flight between District of Columbia to Region of Ontario.

Cheap District of Columbia to Region of Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Region of Ontario

Best price found	C$ 123
Fastest flight time	1h 18m
Direct flights	Every day
Airports in Region of Ontario	125 airports

The best one-way flight to Region of Ontario from District of Columbia in the past 72 hours is C$ 123. The best round-trip flight deal from District of Columbia to Region of Ontario found on momondo in the last 72 hours is C$ 278.

The fastest flight from District of Columbia to Region of Ontario takes 1h 18m

Direct flights go from District of Columbia to Region of Ontario every day.

There are 125 airports in Region of Ontario. From District of Columbia there are direct flights to Toronto Pearson Intl (YYZ), Toronto Island (YTZ).

Search flight deals

Frequently asked questions about flying from District of Columbia to Ontario

When did momondo last update prices for flights from District of Columbia to Ontario?
Prices for flights from District of Columbia to Ontario are updated daily.
How many operators does momondo search for flights from District of Columbia to Ontario?
As of September 2026, there are 4 operators available to choose from for flights from District of Columbia to Ontario.
How old do you have to be to fly from District of Columbia to Ontario?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia to Ontario.
What documentation or ID do you need to fly to Ontario?
The required travel and health documents for your Ontario trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from District of Columbia to Region of Ontario?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from District of Columbia to Region of Ontario is De Havilland (Bombardier) DHC-8-400 Dash 8Q (38.73% of total bookings). The next most popular plane models are Embraer 175 (Enhanced Winglets) (17.59%), Embraer 175 (14.07%), and Airbus A320-100/200 (7.60%).

Best airlines flying from District of Columbia to Region of Ontario

Compare and see reviews for airlines that fly from District of Columbia to Region of Ontario with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom C$ 180	Free Cancellation	Rating 7.1 11,683 reviews	Search Air Canada flights
American Airlines	PriceFrom C$ 231	Free Cancellation	Rating 7.0 12,087 reviews	Search American Airlines flights
Porter Airlines	PriceFrom C$ 288	Free Cancellation	Rating 8.0 464 reviews	Search Porter Airlines flights
United Airlines	PriceFrom C$ 304	Free Cancellation	Rating 7.4 10,239 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Ontario?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from District of Columbia to Ontario . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from District of Columbia to Ontario with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ontario from District of Columbia which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from District of Columbia to Ontario?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from District of Columbia to Ontario.

I’m not ready to book a flight from District of Columbia to Ontario right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Ontario, momondo offers a useful price alert feature which will track prices for flights to Ontario from District of Columbia and alert you when they change.

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Popular Cities in Ontario

Flights to Torontofrom C$ 155

Flights to Vancouverfrom C$ 95

Flights to Calgaryfrom C$ 114

Flights to Montrealfrom C$ 201

Flights to Halifaxfrom C$ 168

Flights to Winnipegfrom C$ 167

Flights to Ottawafrom C$ 192

Flights to Kelownafrom C$ 110

Flights to Saskatoonfrom C$ 174

Flights to St. John'sfrom C$ 205

Flights to Reginafrom C$ 219

Flights to Québec Cityfrom C$ 315

Cheap flights from District of Columbia to Ontario from C$ 123

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Ontario departing on 24/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from District of Columbia to Ontario

Cheap round-trip flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

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United Airlines flights from District of Columbia to Region of Ontario

Our best United Airlines deals on District of Columbia to Region of Ontario flight tickets

Air Canada flights from District of Columbia to Region of Ontario

Our best Air Canada deals on District of Columbia to Region of Ontario flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from District of Columbia to Ontario that are best for you.

See travel insights to Ontario from

How to get the cheapest flight ticket from District of Columbia to Region of Ontario

What is the cheapest month to fly to Region of Ontario?

What is the cheapest day to depart on your flight to Region of Ontario?

What is the cheapest time of day to depart on your flight to Region of Ontario?

What is the cheapest District of Columbia to Ontario flight route?

How far in advance should I book a flight from District of Columbia to Ontario?

What cabin class options are available on District of Columbia to Region of Ontario flights?

Can stopping save me money on District of Columbia to Region of Ontario flights?

What is the cheapest airline that flies from District of Columbia to Ontario?

Which airlines fly to Region of Ontario?

How many flights depart from District of Columbia to Region of Ontario on average per day?

How many flights depart from District of Columbia to Region of Ontario on average per week?

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Region of Ontario flight routes

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