Which airlines fly to Washington, D.C.?

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to Washington, D.C. from Region of Ontario according to our data. Air Canada is the first choice among our users, with 62% of people opting to fly with this airline when travelling to Washington, D.C.. Keep in mind that there are 7 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

How many flights depart from Region of Ontario to Washington, D.C. on average per day?

61 flights are operational daily from Region of Ontario to Washington, D.C. as of June 2026. The most popular departure time for this route is 9:00a.m., with 38% of flights per day taking off at noon.

What is the cheapest airline that flies from Ontario to Washington, D.C.?

Porter Airlines, Air Canada, and United Airlines are the most popular carriers operating from Ontario to Washington, D.C.

How many flights depart from Region of Ontario to Washington, D.C. on average per week?

As of June 2026, there are 432 flights per week flying from Region of Ontario to Washington, D.C.. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.

How long does it take to fly to Washington, D.C.?

Flight times from Region of Ontario to Washington, D.C. vary, but if you’re flying out of Toronto and flying into Washington, D.C. Dulles Intl Airport (one of the most popular routes), then the duration is 1h 28m on average. Another popular route from Region of Ontario to Washington, D.C. is flying from Ottawa to Washington, D.C. Dulles Intl Airport, which will take roughly 1h 43m. Keep in mind that layovers or delays could extend your travel time.

When did momondo last update prices for flights from Ontario to Washington, D.C.?

Prices for flights from Ontario to Washington, D.C. are refreshed on a daily basis.

How many operators does momondo search for flights from Ontario to Washington, D.C.?

As of June 2026, there are 7 operators available to choose from for flights from Ontario to Washington, D.C..

How old do you have to be to fly from Ontario to Washington, D.C.?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario to Washington, D.C..

What documentation or ID do you need to fly to Washington, D.C.?

The travel and health documents you'll need for your trip to Washington, D.C. may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C.. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

C$ 185 Cheap Flights from Ontario to Washington, D.C. in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Washington, D.C.

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:40 p.m. - 3:10 p.m.

YTZ

IAD

1h 30mdirect

11:25 a.m. - 12:55 p.m.

IAD

YTZ

1h 30mdirect

C$ 290Porter Airlines

Wed, 5 Aug - Tue, 11 Aug

1:40 p.m. - 3:11 p.m.

YTZ

IAD

1h 31mdirect

11:05 a.m. - 12:35 p.m.

IAD

YTZ

1h 30mdirect

C$ 292Porter Airlines

Fri, 17 Jul - Tue, 21 Jul

8:55 a.m. - 10:25 a.m.

YTZ

IAD

1h 30mdirect

3:55 p.m. - 5:25 p.m.

IAD

YTZ

1h 30mdirect

C$ 293Porter Airlines

Thu, 16 Jul - Mon, 20 Jul

5:27 p.m. - 10:52 p.m.

YYZ

IAD

5h 25m

1 stop

8:28 a.m. - 10:04 a.m.

IAD

YYZ

1h 36mdirect

C$ 306United Airlines

Tue, 6 Oct - Wed, 7 Oct

7:43 p.m. - 9:24 p.m.

YYZ

IAD

1h 41mdirect

8:20 a.m. - 3:46 p.m.

IAD

YYZ

7h 26m

1 stop

C$ 331United Airlines

Mon, 14 Sep - Tue, 15 Sep

7:20 a.m. - 8:52 a.m.

YYZ

DCA

1h 32mdirect

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

DCA

YYZ

1h 36mdirect

C$ 344Air Canada

Fri, 24 Jul - Mon, 27 Jul

1:55 p.m. - 3:24 p.m.

YYZ

IAD

1h 29mdirect

9:55 a.m. - 11:21 a.m.

IAD

YYZ

1h 26mdirect

C$ 344Air Canada

Fri, 24 Jul - Sun, 26 Jul

5:19 p.m. - 6:59 p.m.

YYZ

DCA

1h 40mdirect

8:36 a.m. - 2:44 p.m.

DCA

YYZ

6h 08m

1 stop

C$ 359American Airlines

Tue, 6 Oct - Wed, 7 Oct

12:45 p.m. - 6:14 p.m.

YUL

DCA

5h 29m

1 stop

8:30 a.m. - 4:05 p.m.

DCA

YUL

7h 35m

1 stop

C$ 450Delta

Wed, 28 Oct - Sat, 31 Oct

9:30 a.m. - 9:27 p.m.

YUL

BWI

11h 57m

2 stops

5:40 p.m. - 11:27 p.m.

BWI

YUL

5h 47m

1 stop

C$ 553Delta

Fri, 18 Sep - Sat, 3 Oct

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Delta flights from Region of Ontario to Washington, D.C.

Our best Delta deals on Region of Ontario to Washington, D.C. flight tickets

Delta

28 Jul

YYZ6:10 a.m.Toronto Pearson Intl

4h 13m

1 stop

IAD10:23 a.m.Washington, D.C. Dulles Intl

29 Jul

IAD5:26 p.m.Washington, D.C. Dulles Intl

5h 36m

1 stop

YYZ11:02 p.m.Toronto Pearson Intl

C$ 392

Delta

14 Jul

YYZ6:04 a.m.Toronto Pearson Intl

5h 45m

1 stop

IAD11:49 a.m.Washington, D.C. Dulles Intl

21 Jul

IAD5:26 p.m.Washington, D.C. Dulles Intl

5h 36m

1 stop

YYZ11:02 p.m.Toronto Pearson Intl

C$ 398

Delta

30 Jun

YYZ6:00 a.m.Toronto Pearson Intl

4h 15m

1 stop

DCA10:15 a.m.Washington, D.C. Reagan-National

4 Jul

DCA6:00 a.m.Washington, D.C. Reagan-National

7h 34m

1 stop

YYZ1:34 p.m.Toronto Pearson Intl

C$ 399

United Airlines flights from Region of Ontario to Washington, D.C.

Our best United Airlines deals on Region of Ontario to Washington, D.C. flight tickets

United Airlines

6 Oct

YYZ5:27 p.m.Toronto Pearson Intl

5h 25m

1 stop

IAD10:52 p.m.Washington, D.C. Dulles Intl

7 Oct

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

1h 36m

YYZ10:04 a.m.Toronto Pearson Intl

C$ 306

United Airlines

14 Sep

YYZ7:43 p.m.Toronto Pearson Intl

1h 41m

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

15 Sep

IAD8:20 a.m.Washington, D.C. Dulles Intl

7h 26m

1 stop

YYZ3:46 p.m.Toronto Pearson Intl

C$ 331

United Airlines

8 Jul

YYZ8:45 a.m.Toronto Pearson Intl

5h 27m

1 stop

IAD2:12 p.m.Washington, D.C. Dulles Intl

8 Jul

IAD5:15 p.m.Washington, D.C. Dulles Intl

1h 47m

YYZ7:02 p.m.Toronto Pearson Intl

C$ 345

momondo Fare Finder

Use the filters below to find and compare flights from Ontario to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Wed 5/8

1:40 p.m.-3:10 p.m.

Nonstop1h 30m

Washington, D.C. Dulles Intl

Tue 11/8

11:25 a.m.-12:55 p.m.

Nonstop1h 30m

C$ 290

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Fri 17/7

1:40 p.m.-3:11 p.m.

Nonstop1h 31m

Washington, D.C. Dulles Intl

Tue 21/7

11:05 a.m.-12:35 p.m.

Nonstop1h 30m

C$ 292

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Thu 16/7

8:55 a.m.-10:25 a.m.

Nonstop1h 30m

Washington, D.C. Dulles Intl

Mon 20/7

3:55 p.m.-5:25 p.m.

Nonstop1h 30m

C$ 293

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Tue 6/10

5:27 p.m.-10:52 p.m.

1 stop5h 25m

Washington, D.C. Dulles Intl

Wed 7/10

8:28 a.m.-10:04 a.m.

Nonstop1h 36m

C$ 306

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Mon 14/9

7:43 p.m.-9:24 p.m.

Nonstop1h 41m

Washington, D.C. Dulles Intl

Tue 15/9

8:20 a.m.-3:46 p.m.

1 stop7h 26m

C$ 331

TorontoWashington, D.C.

YYZ - DCA

YYZDCA

Toronto Pearson Intl

Fri 24/7

7:20 a.m.-8:52 a.m.

Nonstop1h 32m

Washington, D.C. Reagan-National

Mon 27/7

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

Nonstop1h 36m

C$ 344

Quickest round-trip

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Fri 24/7

1:55 p.m.-3:24 p.m.

Nonstop1h 29m

Washington, D.C. Dulles Intl

Sun 26/7

9:55 a.m.-11:21 a.m.

Nonstop1h 26m

C$ 344

TorontoWashington, D.C.

YYZ - DCA

YYZDCA

Toronto Pearson Intl

Tue 6/10

5:19 p.m.-6:59 p.m.

Nonstop1h 40m

Washington, D.C. Reagan-National

Wed 7/10

8:36 a.m.-2:44 p.m.

1 stop6h 08m

C$ 359

MontrealWashington, D.C.

YUL - DCA

YULDCA

Montreal Pierre Elliott Trudeau Intl

Wed 28/10

12:45 p.m.-6:14 p.m.

1 stop5h 29m

Washington, D.C. Reagan-National

Sat 31/10

8:30 a.m.-4:05 p.m.

1 stop7h 35m

C$ 450

MontrealBaltimore

YUL - BWI

YULBWI

Montreal Pierre Elliott Trudeau Intl

Fri 18/9

9:30 a.m.-9:27 p.m.

2 stops11h 57m

Baltimore/Washington

Sat 3/10

5:40 p.m.-11:27 p.m.

1 stop5h 47m

C$ 553

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 Region of Ontario to Washington, D.C.

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 Washington, D.C.?

If you aren’t able to travel during the month of January, then book flights to Washington, D.C. from Region of Ontario during August instead. Flights to Washington, D.C. in August, while not as cheap as those in January, still average around C$ 398.

What is the cheapest day to depart on your flight to Washington, D.C.?

The cheapest day to depart from Region of Ontario to Washington, D.C. is on a Friday. Travellers who choose to depart for Washington, D.C. on a Friday will often find tickets for as low as C$ 537. The most expensive day to fly to Washington, D.C. is Sunday, with ticket prices averaging around C$ 1,000.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

In the afternoon is the cheapest time of day to fly from Region of Ontario to Washington, D.C. when you can find flight prices for as low as C$ 520. Flying to Washington, D.C. in the afternoon is an ideal time because this is during off-peak travel hours. In the evening is when there is more demand to fly to Washington, D.C., so prices are often more expensive at around C$ 882 per ticket.

What is the cheapest Ontario to Washington, D.C. flight route?

Fly from Toronto Island to Washington, D.C. Dulles Intl for the best Ontario - Washington, D.C. flight prices

How far in advance should I book a flight from Ontario to Washington, D.C.?

You are more likely to see cheaper flights to Washington, D.C. from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around C$ 437 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Region of Ontario for as low as C$ 393 on momondo.

What cabin class options are available on Region of Ontario to Washington, D.C. flights?

There are 4 cabin classes available to choose from on Region of Ontario to Washington, D.C. flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Region of Ontario to Washington, D.C. flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to Washington, D.C.

Best price found	C$ 226
Fastest flight time	1h 28m
Direct flights	Every day
Airports in Washington, D.C.	2 airports

The best one-way flight to Washington, D.C. from Region of Ontario in the past 72 hours is C$ 226. The best round-trip flight deal from Region of Ontario to Washington, D.C. found on momondo in the last 72 hours is C$ 318.

The fastest flight from Region of Ontario to Washington, D.C. takes 1h 28m

Direct flights go from Region of Ontario to Washington, D.C. every day.

There are 2 airports in Washington, D.C.. From Region of Ontario there are direct flights to Washington, D.C. Dulles Intl (IAD).

Search flight deals

Frequently asked questions about flying from Ontario to Washington, D.C.

When did momondo last update prices for flights from Ontario to Washington, D.C.?
Prices for flights from Ontario to Washington, D.C. are refreshed on a daily basis.
How many operators does momondo search for flights from Ontario to Washington, D.C.?
As of June 2026, there are 7 operators available to choose from for flights from Ontario to Washington, D.C..
How old do you have to be to fly from Ontario to Washington, D.C.?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario to Washington, D.C..
What documentation or ID do you need to fly to Washington, D.C.?
The travel and health documents you'll need for your trip to Washington, D.C. may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C.. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Region of Ontario to Washington, D.C.?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Region of Ontario to Washington, D.C. is De Havilland (Bombardier) DHC-8-400 Dash 8Q (31.36% of total bookings). The next most popular plane models are Embraer 175 (Enhanced Winglets) (20.43%), Embraer 175 (15.20%), and Canadair (Bombardier) Regional Jet 900 (8.75%).

Best airlines flying from Region of Ontario to Washington, D.C.

Compare and see reviews for airlines that fly from Region of Ontario to Washington, D.C. with momondo

Airline	Rating	Free Cancellation	Price
Porter Airlines	PriceFrom C$ 189	Free Cancellation	Rating 8.0 438 reviews	Search Porter Airlines flights
American Airlines	PriceFrom C$ 220	Free Cancellation	Rating 7.1 11,721 reviews	Search American Airlines flights
United Airlines	PriceFrom C$ 234	Free Cancellation	Rating 7.4 9,866 reviews	Search United Airlines flights
Air Canada	PriceFrom C$ 242	Free Cancellation	Rating 7.1 11,229 reviews	Search Air Canada flights
Air Transat	PriceFrom C$ 301	Free Cancellation	Rating 7.8 556 reviews	Search Air Transat flights
Delta	PriceFrom C$ 359	Free Cancellation	Rating 7.8 8,422 reviews	Search Delta flights
WestJet	PriceFrom C$ 655	Free Cancellation	Rating 7.2 3,375 reviews	Search WestJet flights

Alexandria

Gettysburg

Fairfax

Arlington

Gaithersburg

Linthicum Heights

National Harbor

Reston

Herndon

Fredericksburg

Manassas

Woodbridge

Silver Spring

Falls Church

Rockville

McLean

Tysons

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Washington, D.C.?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Washington, D.C.. momondo saves you time and could save you money on your trip.

Can I find flights from Ontario to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ontario to Washington, D.C. flights to just show those with flexible booking policies.

How can momondo help me find flights from Ontario to Washington, D.C.?

Once you have performed a search for Ontario to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Ontario to Washington, D.C. right now. Can momondo alert me if prices change?

Price alerts on flights to Washington, D.C. from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Fly into one of these airports located in Washington, D.C.

Washington, D.C. Reagan-National Airport

Washington, D.C. Dulles Intl Airport

Cheap flights from Ontario to Washington, D.C. from C$ 185

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Washington, D.C. departing on 28/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from Region of Ontario to Washington, D.C.

Our best Delta deals on Region of Ontario to Washington, D.C. flight tickets

United Airlines flights from Region of Ontario to Washington, D.C.

Our best United Airlines deals on Region of Ontario to Washington, D.C. flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Ontario to Washington, D.C. that are best for you.

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Region of Ontario to Washington, D.C.

What is the cheapest month to fly to Washington, D.C.?

What is the cheapest day to depart on your flight to Washington, D.C.?

What is the cheapest time of day to depart on your flight to Washington, D.C.?

What is the cheapest Ontario to Washington, D.C. flight route?

How far in advance should I book a flight from Ontario to Washington, D.C.?

What cabin class options are available on Region of Ontario to Washington, D.C. flights?

What is the cheapest airline that flies from Ontario to Washington, D.C.?

Which airlines fly to Washington, D.C.?

How many flights depart from Region of Ontario to Washington, D.C. on average per day?

How many flights depart from Region of Ontario to Washington, D.C. on average per week?

How long does it take to fly to Washington, D.C.?

Cheap Region of Ontario to Washington, D.C. flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to Washington, D.C.

Best price found

Fastest flight time

Direct flights

Airports in Washington, D.C.

Frequently asked questions about flying from Ontario to Washington, D.C.

Best airlines flying from Region of Ontario to Washington, D.C.

Compare and see reviews for airlines that fly from Region of Ontario to Washington, D.C. with momondo

Travelling to a place near Washington, D.C.?

Why use momondo?

An easier way to manage your Washington, D.C. trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 36.1 km from Washington, D.C.

Fly your favourite airline to Washington, D.C.

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Washington, D.C.

List of cabin classes available on flights landing in Washington, D.C.. Availability may vary depending on flight origin and airline.

Popular Cities in the United States

Popular flights according to clicks in the last 7 days on momondo

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