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

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

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

Flight times from Region of Ontario to Washington, D.C. Dulles Intl Airport 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 27m on average. Another popular route from Region of Ontario to Washington, D.C. Dulles Intl Airport 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.

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

Air Canada, United Airlines and Porter 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 51% of people opting to fly with this airline when traveling to Washington, D.C. Dulles Intl Airport. Keep in mind that there are 3 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.

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 were last updated today.

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

The number of operators available for flights from Ontario to Washington, D.C. Dulles Intl Airport is 3 as of June 2026.

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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 required travel and health documents for your Washington, D.C. Dulles Intl Airport 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 Washington, D.C. Dulles Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$131 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 June 2026, there are 302 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 Mon, with 15% of flights taking off on this day.

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

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One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:15 am - 10:46 am

YTZ

IAD

1h 31mnonstop

11:30 am - 1:00 pm

IAD

YTZ

1h 30mnonstop

$200Porter Airlines

Tue, Jun 16 - Tue, Jun 23

9:15 am - 10:46 am

YTZ

IAD

1h 31mnonstop

4:00 pm - 5:30 pm

IAD

YTZ

1h 30mnonstop

$201Porter Airlines

Tue, Jun 30 - Sun, Jul 5

9:15 am - 10:46 am

YTZ

IAD

1h 31mnonstop

4:00 pm - 5:30 pm

IAD

YTZ

1h 30mnonstop

$202Porter Airlines

Sat, Jun 20 - Sat, Jun 27

3:15 pm - 4:32 pm

YTZ

IAD

1h 17mnonstop

5:15 pm - 6:42 pm

IAD

YTZ

1h 27mnonstop

$203Air Canada

Thu, Jun 18 - Mon, Jun 22

9:15 am - 10:46 am

YTZ

IAD

1h 31mnonstop

4:00 pm - 5:30 pm

IAD

YTZ

1h 30mnonstop

$204Porter Airlines

Thu, Jun 25 - Mon, Jun 29

9:15 am - 10:46 am

YTZ

IAD

1h 31mnonstop

11:30 am - 1:00 pm

IAD

YTZ

1h 30mnonstop

$205Porter Airlines

Fri, Jun 12 - Sun, Jun 14

1:45 pm - 3:16 pm

YTZ

IAD

1h 31mnonstop

11:30 am - 1:00 pm

IAD

YTZ

1h 30mnonstop

$206Porter Airlines

Thu, Jul 2 - Mon, Jul 6

1:55 pm - 3:24 pm

YYZ

IAD

1h 29mnonstop

9:55 am - 11:25 am

IAD

YYZ

1h 30mnonstop

$219Air Canada

Thu, Jun 25 - Mon, Jun 29

1:55 pm - 3:24 pm

YYZ

IAD

1h 29mnonstop

9:55 am - 11:25 am

IAD

YYZ

1h 30mnonstop

$221Air Canada

Thu, Jun 25 - Mon, Jun 29

11:23 am - 4:32 pm

YUL

IAD

5h 09m

1 stop

10:11 pm - 12:13 am

IAD

YUL

2h 02mnonstop

$294United Airlines

Tue, Jun 16 - Tue, Jun 16

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

Jun 16

YTZ9:15 amToronto Island

1h 31m

IAD10:46 amWashington, D.C. Dulles Intl

Jun 23

IAD11:30 amWashington, D.C. Dulles Intl

1h 30m

YTZ1:00 pmToronto Island

$200

Porter Airlines

Jun 30

YTZ9:15 amToronto Island

1h 31m

IAD10:46 amWashington, D.C. Dulles Intl

Jul 5

IAD4:00 pmWashington, D.C. Dulles Intl

1h 30m

YTZ5:30 pmToronto Island

$201

Porter Airlines

Jun 20

YTZ9:15 amToronto Island

1h 31m

IAD10:46 amWashington, D.C. Dulles Intl

Jun 27

IAD4:00 pmWashington, D.C. Dulles Intl

1h 30m

YTZ5:30 pmToronto Island

$202

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

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

Air Canada

Jun 18

YTZ3:15 pmToronto Island

1h 17m

IAD4:32 pmWashington, D.C. Dulles Intl

Jun 22

IAD5:15 pmWashington, D.C. Dulles Intl

1h 27m

YTZ6:42 pmToronto Island

$203

Air Canada

Jun 18

YTZ8:30 amToronto Island

6h 31m

1 stop

IAD3:01 pmWashington, D.C. Dulles Intl

Jun 22

IAD5:15 pmWashington, D.C. Dulles Intl

1h 27m

YTZ6:42 pmToronto Island

$213

Air Canada

Jun 13

YTZ3:15 pmToronto Island

1h 17m

IAD4:32 pmWashington, D.C. Dulles Intl

Jun 28

IAD5:15 pmWashington, D.C. Dulles Intl

1h 27m

YTZ6:42 pmToronto Island

$218

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

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Tue 6/16

9:15 am-10:46 am

Nonstop1h 31m

Washington, D.C. Dulles Intl

Tue 6/23

11:30 am-1:00 pm

Nonstop1h 30m

$200

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Tue 6/30

9:15 am-10:46 am

Nonstop1h 31m

Washington, D.C. Dulles Intl

Sun 7/5

4:00 pm-5:30 pm

Nonstop1h 30m

$201

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Sat 6/20

9:15 am-10:46 am

Nonstop1h 31m

Washington, D.C. Dulles Intl

Sat 6/27

4:00 pm-5:30 pm

Nonstop1h 30m

$202

Quickest round-trip

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Thu 6/18

3:15 pm-4:32 pm

Nonstop1h 17m

Washington, D.C. Dulles Intl

Mon 6/22

5:15 pm-6:42 pm

Nonstop1h 27m

$203

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Thu 6/25

9:15 am-10:46 am

Nonstop1h 31m

Washington, D.C. Dulles Intl

Mon 6/29

4:00 pm-5:30 pm

Nonstop1h 30m

$204

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Fri 6/12

9:15 am-10:46 am

Nonstop1h 31m

Washington, D.C. Dulles Intl

Sun 6/14

11:30 am-1:00 pm

Nonstop1h 30m

$205

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Thu 7/2

1:45 pm-3:16 pm

Nonstop1h 31m

Washington, D.C. Dulles Intl

Mon 7/6

11:30 am-1:00 pm

Nonstop1h 30m

$206

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Thu 6/25

1:55 pm-3:24 pm

Nonstop1h 29m

Washington, D.C. Dulles Intl

Mon 6/29

9:55 am-11:25 am

Nonstop1h 30m

$219

TorontoWashington, D.C.

YYZ - IAD

YYZIAD

Toronto Pearson Intl

Thu 6/25

1:55 pm-3:24 pm

Nonstop1h 29m

Washington, D.C. Dulles Intl

Mon 6/29

9:55 am-11:25 am

Nonstop1h 30m

$221

MontrealWashington, D.C.

YUL - IAD

YULIAD

Montreal Pierre Elliott Trudeau Intl

Tue 6/16

11:23 am-4:32 pm

1 stop5h 09m

Washington, D.C. Dulles Intl

Tue 6/16

10:11 pm-12:13 am

Nonstop2h 02m

$294

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?

In general, July is the cheapest month to fly from Region of Ontario to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $87. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of July, then flying in June is also cheap. Prices for this month can be found on momondo for an average of $91.

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

Our data shows that Friday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $308. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Region of Ontario to Washington, D.C. Dulles Intl Airport for around $551.

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

Flying to Washington, D.C. Dulles Intl Airport from Region of Ontario in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $311 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $533 on average. Flights to Washington, D.C. Dulles Intl Airport from Region of Ontario in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 from Ontario 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 $305 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 $213 on momondo.

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

There are 4 cabin classes available to choose from on Region of Ontario to Washington, D.C. Dulles Intl Airport 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	$147
Fastest flight time	1h 25m
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 $147. 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 $181.

The fastest flight from Region of Ontario to Washington, D.C. Dulles Intl Airport takes 1h 25m

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

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

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 were last updated today.
How many operators does momondo search for flights from Ontario to Washington, D.C. Dulles Intl Airport?
The number of operators available for flights from Ontario to Washington, D.C. Dulles Intl Airport is 3 as of June 2026.
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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 required travel and health documents for your Washington, D.C. Dulles Intl Airport 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 Washington, D.C. Dulles Intl Airport. 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 Region of Ontario to Washington, D.C. Dulles Intl Airport?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Region of Ontario to Washington, D.C. Dulles Intl Airport is De Havilland (Bombardier) DHC-8-400 Dash 8Q (26.49% of total bookings). The next most popular plane models are Embraer 175 (Enhanced Winglets) (19.25%), Embraer 175 (13.61%), and Canadair (Bombardier) Regional Jet 900 (6.47%).

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
United Airlines	PriceFrom $160	Free Cancellation	Rating 7.4 9,778 reviews	Search United Airlines flights
Air Canada	PriceFrom $181	Free Cancellation	Rating 7.1 11,111 reviews	Search Air Canada flights
Porter Airlines	PriceFrom $189	Free Cancellation	Rating 8.0 440 reviews	Search Porter Airlines flights

Alexandria

National Harbor

Gettysburg

Arlington

Winchester

Waldorf

Woodbridge

Laurel

Gaithersburg

Colonial Beach

Fredericksburg

Silver Spring

Rockville

Towson

Manassas

Sterling

Linthicum Heights

Tysons

Springfield

Bethesda

Why use momondo?

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

Finding the right flight to Washington, D.C. from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to Washington, D.C. from Ontario which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from Ontario.

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

Yes. momondo can track prices for Ontario to Washington, D.C. flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Cheap flights from Ontario to Washington, D.C. from $131

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 7/22. 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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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

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

Our best Air Canada 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.

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

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

What 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

Best Price Found

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Direct flights

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

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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