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

APG Airlines, United Airlines, and Porter Airlines are the most popular carriers operating from Ontario to Washington, D.C. Dulles Intl

Which airlines fly to Washington, D.C. Dulles Intl Airport?

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to Washington, D.C. Dulles Intl Airport from Region of Ontario 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 Washington, D.C. Dulles Intl Airport. Keep in mind that there are 4 different airlines that fly to Washington, D.C. Dulles Intl Airport on a routine basis, so you have a few additional options to choose from.

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

The average flight duration from Region of Ontario to Washington, D.C. Dulles Intl Airport depends on which airport you fly into and out of. Flying from Toronto to Washington, D.C. Dulles Intl Airport is 1h 21m on average, while flying from Ottawa to Washington, D.C. Dulles Intl Airport is 1h 43m on average. Washington, D.C. Dulles Intl Airport is the most popular airport in Washington, D.C. Dulles Intl Airport.

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

As of March 2026, there are 4 operators available to choose from for flights from Ontario to Washington, D.C. Dulles Intl Airport.

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

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 Ontario to Washington, D.C. Dulles Intl Airport.

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

The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

C$ 176 Cheap Flights from Region of Ontario to Washington, D.C. Dulles Intl Airport in 2026

Q: How many flights depart from Region of Ontario to Washington, D.C. Dulles Intl Airport on average per week?

As of March 2026, there are 218 flights per week flying from Region of Ontario to Washington, D.C. Dulles Intl Airport. The most common day of the week flights depart is Sat, with 15% of flights taking off on this day.

Q: How many flights depart from Region of Ontario to Washington, D.C. Dulles Intl Airport on average per day?

As of March 2026, there are 31 flights per day flying from Region of Ontario to Washington, D.C. Dulles Intl Airport. The most common time of day flights depart is 2:00p.m., with 36% of flights taking off in the evening.

1 adult

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

Round-trip

One-way

Last minute

Direct

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Enter your travel dates to find the best prices.

11:30 a.m. - 12:59 p.m.

YTZ

IAD

1h 29mdirect

6:00 p.m. - 7:30 p.m.

IAD

YTZ

1h 30mdirect

C$ 277Porter Airlines

Sat, 18 Apr - Sun, 19 Apr

9:25 a.m. - 10:54 a.m.

YTZ

IAD

1h 29mdirect

11:40 a.m. - 1:10 p.m.

IAD

YTZ

1h 30mdirect

C$ 279Porter Airlines

Thu, 9 Apr - Mon, 13 Apr

9:15 a.m. - 10:46 a.m.

YTZ

IAD

1h 31mdirect

11:30 a.m. - 1:00 p.m.

IAD

YTZ

1h 30mdirect

C$ 280Porter Airlines

Thu, 14 May - Sat, 16 May

11:30 a.m. - 12:59 p.m.

YTZ

IAD

1h 29mdirect

6:00 p.m. - 7:30 p.m.

IAD

YTZ

1h 30mdirect

C$ 281Porter Airlines

Sat, 11 Apr - Fri, 17 Apr

9:25 a.m. - 10:54 a.m.

YTZ

IAD

1h 29mdirect

6:00 p.m. - 7:30 p.m.

IAD

YTZ

1h 30mdirect

C$ 283Porter Airlines

Mon, 13 Apr - Fri, 24 Apr

6:55 p.m. - 8:29 p.m.

YYZ

IAD

1h 34mdirect

9:55 a.m. - 11:22 a.m.

IAD

YYZ

1h 27mdirect

C$ 309Air Canada

Mon, 4 May - Mon, 11 May

8:00 a.m. - 3:03 p.m.

YYZ

IAD

7h 03m

1 stop

3:45 p.m. - 10:58 p.m.

IAD

YYZ

7h 13m

1 stop

C$ 316Air Canada

Fri, 15 May - Sun, 17 May

7:43 p.m. - 9:25 p.m.

YYZ

IAD

1h 42mdirect

10:14 p.m. - 11:54 p.m.

IAD

YYZ

1h 40mdirect

C$ 318United Airlines

Fri, 24 Apr - Sun, 26 Apr

12:45 p.m. - 2:24 p.m.

YYZ

IAD

1h 39mdirect

6:00 a.m. - 11:43 a.m.

IAD

YYZ

5h 43m

1 stop

C$ 332United Airlines

Fri, 24 Apr - Fri, 1 May

9:35 a.m. - 11:14 a.m.

YYZ

IAD

1h 39mdirect

8:20 a.m. - 10:04 a.m.

IAD

YYZ

1h 44mdirect

C$ 336Lufthansa

Thu, 9 Apr - Sun, 12 Apr

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

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

Delta

15 Apr

YYZ4:11 p.m.Toronto Pearson Intl

6h 52m

1 stop

IAD11:03 p.m.Washington, D.C. Dulles Intl

22 Apr

IAD11:04 a.m.Washington, D.C. Dulles Intl

6h 17m

1 stop

YYZ5:21 p.m.Toronto Pearson Intl

C$ 361

Delta

14 Apr

YYZ6:10 a.m.Toronto Pearson Intl

4h 08m

1 stop

IAD10:18 a.m.Washington, D.C. Dulles Intl

18 Apr

IAD11:04 a.m.Washington, D.C. Dulles Intl

4h 16m

1 stop

YYZ3:20 p.m.Toronto Pearson Intl

C$ 364

Delta

30 Apr

YYZ6:00 a.m.Toronto Pearson Intl

6h 05m

1 stop

IAD12:05 p.m.Washington, D.C. Dulles Intl

3 May

IAD6:00 a.m.Washington, D.C. Dulles Intl

7h 24m

1 stop

YYZ1:24 p.m.Toronto Pearson Intl

C$ 384

Porter Airlines flights from Region of Ontario to Washington, D.C. Dulles Intl Airport

Our best Porter Airlines deals on Region of Ontario to Washington, D.C. Dulles Intl Airport flight tickets

Porter Airlines

18 Apr

YTZ11:30 a.m.Toronto Island

1h 29m

IAD12:59 p.m.Washington, D.C. Dulles Intl

19 Apr

IAD6:00 p.m.Washington, D.C. Dulles Intl

1h 30m

YTZ7:30 p.m.Toronto Island

C$ 277

Porter Airlines

9 Apr

YTZ9:25 a.m.Toronto Island

1h 29m

IAD10:54 a.m.Washington, D.C. Dulles Intl

13 Apr

IAD11:40 a.m.Washington, D.C. Dulles Intl

1h 30m

YTZ1:10 p.m.Toronto Island

C$ 279

Porter Airlines

14 May

YTZ9:15 a.m.Toronto Island

1h 31m

IAD10:46 a.m.Washington, D.C. Dulles Intl

16 May

IAD11:30 a.m.Washington, D.C. Dulles Intl

1h 30m

YTZ1:00 p.m.Toronto Island

C$ 280

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Sat 18/4

11:30 a.m.-12:59 p.m.

Nonstop1h 29m

Washington, D.C. Dulles Intl

Sun 19/4

6:00 p.m.-7:30 p.m.

Nonstop1h 30m

C$ 277

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Thu 9/4

9:25 a.m.-10:54 a.m.

Nonstop1h 29m

Washington, D.C. Dulles Intl

Mon 13/4

11:40 a.m.-1:10 p.m.

Nonstop1h 30m

C$ 279

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Thu 14/5

9:15 a.m.-10:46 a.m.

Nonstop1h 31m

Washington, D.C. Dulles Intl

Sat 16/5

11:30 a.m.-1:00 p.m.

Nonstop1h 30m

C$ 280

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Sat 11/4

11:30 a.m.-12:59 p.m.

Nonstop1h 29m

Washington, D.C. Dulles Intl

Fri 17/4

6:00 p.m.-7:30 p.m.

Nonstop1h 30m

C$ 281

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Mon 13/4

9:25 a.m.-10:54 a.m.

Nonstop1h 29m

Washington, D.C. Dulles Intl

Fri 24/4

6:00 p.m.-7:30 p.m.

Nonstop1h 30m

C$ 283

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Mon 4/5

6:55 p.m.-8:29 p.m.

Nonstop1h 34m

Washington, D.C. Dulles Intl

Mon 11/5

9:55 a.m.-11:22 a.m.

Nonstop1h 27m

C$ 309

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Fri 15/5

8:00 a.m.-3:03 p.m.

1 stop7h 03m

Washington, D.C. Dulles Intl

Sun 17/5

3:45 p.m.-10:58 p.m.

1 stop7h 13m

C$ 316

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Fri 24/4

7:43 p.m.-9:25 p.m.

Nonstop1h 42m

Washington, D.C. Dulles Intl

Sun 26/4

10:14 p.m.-11:54 p.m.

Nonstop1h 40m

C$ 318

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Fri 24/4

12:45 p.m.-2:24 p.m.

Nonstop1h 39m

Washington, D.C. Dulles Intl

Fri 1/5

6:00 a.m.-11:43 a.m.

1 stop5h 43m

C$ 332

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Thu 9/4

9:35 a.m.-11:14 a.m.

Nonstop1h 39m

Washington, D.C. Dulles Intl

Sun 12/4

8:20 a.m.-10:04 a.m.

Nonstop1h 44m

C$ 336

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. Dulles Intl Airport

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. Dulles Intl Airport?

The cheapest month to fly to Washington, D.C. Dulles Intl Airport from Region of Ontario is in July. Flight prices, which tend to average around C$ 268, are often lower during this time because this is during the off-season. If you don’t want to visit Washington, D.C. Dulles Intl Airport in July, then you should wait until June to fly from Region of Ontario, when ticket prices are also cheap, with an average price of C$ 284.

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

According to our data, Friday is the cheapest day to fly to Washington, D.C. Dulles Intl Airport from Region of Ontario. The lowest ticket price found for a Friday departure recently was C$ 519. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Washington, D.C. Dulles Intl Airport on Sunday is C$ 889.

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

Our most recent data shows that the best time of day to fly to Washington, D.C. Dulles Intl Airport is in the afternoon. Flights from Region of Ontario to Washington, D.C. Dulles Intl Airport during this time can be as low as C$ 507. In the evening is when there is more demand to fly to Washington, D.C. Dulles Intl Airport, so prices are often more expensive at around C$ 838 per ticket.

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

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

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around C$ 402 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Region of Ontario for as low as C$ 292 on momondo.

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

There are 4 cabin classes available to choose from on Ontario to Washington, D.C. Dulles Intl 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 Region of Ontario to Washington, D.C. Dulles Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Region of Ontario to Washington, D.C. Dulles Intl Airport.

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

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

Best price found	C$ 201
Fastest flight time	1h 17m
Direct flights	Every day

The best one-way flight to Washington, D.C. Dulles Intl Airport from Region of Ontario in the past 72 hours is C$ 201. The best round-trip flight deal from Region of Ontario to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is C$ 300.

The fastest flight from Region of Ontario to Washington, D.C. Dulles Intl Airport takes 1h 17m

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

Search flight deals

When did momondo last update prices for flights from Ontario to Washington, D.C. Dulles Intl Airport?
Prices for flights from Ontario to Washington, D.C. Dulles Intl Airport are updated daily.
How many operators does momondo search for flights from Ontario to Washington, D.C. Dulles Intl Airport?
As of March 2026, there are 4 operators available to choose from for flights from Ontario to Washington, D.C. Dulles Intl Airport.
How old do you have to be to fly from Ontario to Washington, D.C. Dulles Intl Airport?
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 Ontario to Washington, D.C. Dulles Intl Airport.
What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?
The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport. 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. Dulles Intl Airport?
Based on momondo bookings for flights between Region of Ontario and Washington, D.C. Dulles Intl Airport, the leading plane model is Embraer 175 (Enhanced Winglets), making up 19.65% of the total bookings. Other popular models include De Havilland (Bombardier) DHC-8-400 Dash 8Q with 18.62%, Embraer 175 with 9.08%, and Embraer 195 E2 with 8.30%.

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

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

Airline	Rating	Free Cancellation	Price
Air Transat	PriceFrom C$ 208	Free Cancellation	Rating 7.7 521 reviews	Search Air Transat flights
Porter Airlines	PriceFrom C$ 210	Free Cancellation	Rating 8.0 425 reviews	Search Porter Airlines flights
United Airlines	PriceFrom C$ 259	Free Cancellation	Rating 7.4 9,452 reviews	Search United Airlines flights
Air Canada	PriceFrom C$ 276	Free Cancellation	Rating 7.1 10,828 reviews	Search Air Canada flights

Alexandria

Gettysburg

Chantilly

Gaithersburg

Fairfax

Linthicum Heights

Bethesda

National Harbor

Reston

Laurel

Herndon

Winchester

Arlington

Leesburg

Fredericksburg

Ashburn

Manassas

Woodbridge

Silver Spring

Rockville

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Ontario.

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

Flights from Ontario to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential Ontario to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Ontario to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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

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Cheap flights from Ontario to Washington, D.C. from C$ 176

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 20/5. 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. Dulles Intl Airport

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

Porter Airlines flights from Region of Ontario to Washington, D.C. Dulles Intl Airport

Our best Porter Airlines deals on Region of Ontario to Washington, D.C. Dulles Intl Airport flight tickets

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Use the filters below to find and compare flights from Ontario to Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport

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

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

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

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

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

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

Can stopping save me money on Region of Ontario to Washington, D.C. Dulles Intl Airport flights?

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

Which airlines fly to Washington, D.C. Dulles Intl Airport?

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

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

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

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

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

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

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

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