What airlines fly to Region of Ontario?

Air Canada, United Airlines and Porter Airlines are the top three most popular airlines that fly to Region of Ontario from Washington, D.C. Dulles Intl Airport according to our data. Air Canada is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Region of Ontario. Keep in mind that there are 5 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.

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

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

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

As of May 2026, there are 5 operators available to choose from for flights from Washington, D.C. Dulles Intl Airport to Ontario.

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

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

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

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

$93 Cheap Flights from Washington, D.C. Dulles Intl Airport to Region of Ontario in 2026

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

The number of flights available between Washington, D.C. Dulles Intl Airport and Region of Ontario is 45 per day as of May 2026. The most frequent departure time is 5:00PM, with 53% of daily flights leaving in the afternoon.

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

As of May 2026, there are 316 flights per week flying from Washington, D.C. Dulles Intl Airport to Region of Ontario. 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 Washington, D.C. Dulles Intl Airport to Ontario

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:15 pm - 6:42 pm

IAD

YTZ

1h 27mnonstop

2:55 pm - 4:12 pm

YTZ

IAD

1h 17mnonstop

$194Air Canada

Sun, Jun 14 - Sat, Jun 20

4:05 pm - 5:35 pm

IAD

YTZ

1h 30mnonstop

9:15 am - 10:46 am

YTZ

IAD

1h 31mnonstop

$195Porter Airlines

Thu, May 28 - Sun, May 31

4:05 pm - 5:35 pm

IAD

YTZ

1h 30mnonstop

1:50 pm - 3:21 pm

YTZ

IAD

1h 31mnonstop

$197Porter Airlines

Fri, May 29 - Wed, Jun 3

4:05 pm - 5:35 pm

IAD

YTZ

1h 30mnonstop

9:15 am - 10:46 am

YTZ

IAD

1h 31mnonstop

$198Porter Airlines

Thu, May 28 - Sat, May 30

5:15 pm - 6:42 pm

IAD

YTZ

1h 27mnonstop

2:55 pm - 4:12 pm

YTZ

IAD

1h 17mnonstop

$199Air Canada

Sat, Jun 6 - Mon, Jun 8

5:15 pm - 6:42 pm

IAD

YTZ

1h 27mnonstop

2:55 pm - 4:12 pm

YTZ

IAD

1h 17mnonstop

$200Air Canada

Sat, Jun 6 - Mon, Jun 8

4:05 pm - 5:35 pm

IAD

YTZ

1h 30mnonstop

9:15 am - 10:46 am

YTZ

IAD

1h 31mnonstop

$201Porter Airlines

Thu, May 28 - Mon, Jun 1

4:00 pm - 5:30 pm

IAD

YTZ

1h 30mnonstop

9:15 am - 10:46 am

YTZ

IAD

1h 31mnonstop

$202Porter Airlines

Sat, Jun 20 - Wed, Jun 24

10:29 pm - 9:19 am

IAD

YYZ

10h 50m

1 stop

12:45 pm - 2:21 pm

YYZ

IAD

1h 36mnonstop

$231United Airlines

Wed, May 27 - Thu, May 28

10:14 pm - 11:54 pm

IAD

YYZ

1h 40mnonstop

7:43 pm - 9:26 pm

YYZ

IAD

1h 43mnonstop

$246United Airlines

Wed, May 27 - Fri, May 29

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

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

United Airlines

May 27

IAD10:29 pmWashington, D.C. Dulles Intl

10h 50m

1 stop

YYZ9:19 amToronto Pearson Intl

May 28

YYZ12:45 pmToronto Pearson Intl

1h 36m

IAD2:21 pmWashington, D.C. Dulles Intl

$231

United Airlines

May 27

IAD10:14 pmWashington, D.C. Dulles Intl

1h 40m

YYZ11:54 pmToronto Pearson Intl

May 29

YYZ7:43 pmToronto Pearson Intl

1h 43m

IAD9:26 pmWashington, D.C. Dulles Intl

$246

United Airlines

May 27

IAD10:29 pmWashington, D.C. Dulles Intl

10h 50m

1 stop

YYZ9:19 amToronto Pearson Intl

May 28

YYZ1:00 pmToronto Pearson Intl

6h 02m

1 stop

IAD7:02 pmWashington, D.C. Dulles Intl

$247

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

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

Air Canada

Jun 14

IAD5:15 pmWashington, D.C. Dulles Intl

1h 27m

YTZ6:42 pmToronto Island

Jun 20

YTZ2:55 pmToronto Island

1h 17m

IAD4:12 pmWashington, D.C. Dulles Intl

$194

Air Canada

Jun 6

IAD5:15 pmWashington, D.C. Dulles Intl

1h 27m

YTZ6:42 pmToronto Island

Jun 8

YTZ2:55 pmToronto Island

1h 17m

IAD4:12 pmWashington, D.C. Dulles Intl

$199

Air Canada

Jun 6

IAD5:15 pmWashington, D.C. Dulles Intl

1h 27m

YTZ6:42 pmToronto Island

Jun 8

YTZ2:55 pmToronto Island

1h 17m

IAD4:12 pmWashington, D.C. Dulles Intl

$200

momondo Fare Finder

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

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Route

Depart

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Price

Cheapest round-trip

Quickest round-trip

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sun 6/14

5:15 pm-6:42 pm

Nonstop1h 27m

Toronto Island

Sat 6/20

2:55 pm-4:12 pm

Nonstop1h 17m

$194

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 5/28

4:05 pm-5:35 pm

Nonstop1h 30m

Toronto Island

Sun 5/31

9:15 am-10:46 am

Nonstop1h 31m

$195

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Fri 5/29

4:05 pm-5:35 pm

Nonstop1h 30m

Toronto Island

Wed 6/3

1:50 pm-3:21 pm

Nonstop1h 31m

$197

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 5/28

4:05 pm-5:35 pm

Nonstop1h 30m

Toronto Island

Sat 5/30

9:15 am-10:46 am

Nonstop1h 31m

$198

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sat 6/6

5:15 pm-6:42 pm

Nonstop1h 27m

Toronto Island

Mon 6/8

2:55 pm-4:12 pm

Nonstop1h 17m

$199

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sat 6/6

5:15 pm-6:42 pm

Nonstop1h 27m

Toronto Island

Mon 6/8

2:55 pm-4:12 pm

Nonstop1h 17m

$200

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 5/28

4:05 pm-5:35 pm

Nonstop1h 30m

Toronto Island

Mon 6/1

9:15 am-10:46 am

Nonstop1h 31m

$201

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sat 6/20

4:00 pm-5:30 pm

Nonstop1h 30m

Toronto Island

Wed 6/24

9:15 am-10:46 am

Nonstop1h 31m

$202

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Wed 5/27

10:29 pm-9:19 am

1 stop10h 50m

Toronto Pearson Intl

Thu 5/28

12:45 pm-2:21 pm

Nonstop1h 36m

$231

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Wed 5/27

10:14 pm-11:54 pm

Nonstop1h 40m

Toronto Pearson Intl

Fri 5/29

7:43 pm-9:26 pm

Nonstop1h 43m

$246

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How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport 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?

The month of September is, on average, the cheapest month to fly to Region of Ontario from Washington, D.C. Dulles Intl Airport, with most prices found around $54. If you aren’t able to travel during the month of September, then book flights to Region of Ontario from Washington, D.C. Dulles Intl Airport during July instead. Flights to Region of Ontario in July, while not as cheap as those in September, still average around $67.

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

According to our data, Thursday is the cheapest day to fly to Region of Ontario from Washington, D.C. Dulles Intl Airport. The lowest ticket price found for a Thursday departure recently was $346. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Washington, D.C. Dulles Intl Airport to Region of Ontario on a Saturday will generally be more expensive and average around $479. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

According to our data, the cheapest time of day to fly to Region of Ontario is in the afternoon. momondo users have found flights departing from Washington, D.C. Dulles Intl Airport to Region of Ontario in the afternoon for as low as $353. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $471.

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

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

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

You are more likely to see cheaper flights to Region of Ontario from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around $358 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 Washington, D.C. Dulles Intl Airport for as low as $272 on momondo.

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

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

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

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

Best Price Found	$96
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 Washington, D.C. Dulles Intl Airport in the past 72 hours is $96. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Region of Ontario found on momondo in the last 72 hours is $230.

The fastest flight from Washington, D.C. Dulles Intl Airport to Region of Ontario takes 1h 18m

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

There are 125 airports in Region of Ontario. From Washington, D.C. Dulles Intl Airport there are direct flights to Toronto Pearson Intl (YYZ), Toronto Island (YTZ).

Search flight deals

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

When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Ontario?
Prices for flights from Washington, D.C. Dulles Intl Airport to Ontario refresh daily.
How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Ontario?
As of May 2026, there are 5 operators available to choose from for flights from Washington, D.C. Dulles Intl Airport to Ontario.
How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Ontario?
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 Washington, D.C. Dulles Intl Airport to Ontario.
What documentation or ID do you need to fly to Ontario?
The travel and health documents you'll need for your trip to Ontario 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 Ontario. 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 Washington, D.C. Dulles Intl Airport to Region of Ontario?
momondo data reveals that the most frequently booked plane model on the route from Washington, D.C. Dulles Intl Airport to Region of Ontario is De Havilland (Bombardier) DHC-8-400 Dash 8Q, representing 30.20% of all bookings. The subsequent popular models are Embraer 175 (Enhanced Winglets) at 21.68%, Embraer 175 at 16.02%, and Canadair (Bombardier) Regional Jet 900 at 9.53%.

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

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

Airline	Rating	Free Cancellation	Price
Porter Airlines	PriceFrom $54	Free Cancellation	Rating 8.0 439 reviews	Search Porter Airlines flights
Delta	PriceFrom $100	Free Cancellation	Rating 7.9 8,453 reviews	Search Delta flights
Air Canada	PriceFrom $200	Free Cancellation	Rating 7.1 11,042 reviews	Search Air Canada flights
Air Transat	PriceFrom $211	Free Cancellation	Rating 7.8 552 reviews	Search Air Transat flights
United Airlines	PriceFrom $230	Free Cancellation	Rating 7.4 9,717 reviews	Search United Airlines flights

Why use momondo?

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

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

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

Flights from Washington, D.C. to Ontario 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 Washington, D.C. to Ontario?

Once you have performed a search for Washington, D.C. to Ontario 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 Washington, D.C. 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 Washington, D.C. and alert you when they change.

An easier way to manage your Region of Ontario trip

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Popular cities in Ontario

Flights to Torontofrom $152

Flights to Vancouverfrom $158

Flights to Montrealfrom $141

Flights to Calgaryfrom $217

Flights to Ottawafrom $242

Flights to Halifaxfrom $256

Flights to Winnipegfrom $287

Flights to Québec Cityfrom $407

Flights to Saskatoonfrom $273

Flights to Kelownafrom $257

Flights to St. John'sfrom $363

Flights to Reginafrom $350

Cheap flights from Washington, D.C. Dulles Intl Airport to Ontario from $93

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

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

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

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

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

See travel insights to Ontario from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport 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 Washington, D.C. Dulles Intl to Ontario flight route?

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

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

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

What airlines fly to Region of Ontario?

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

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

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

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

Best Price Found

Fastest flight time

Direct flights

Airports in Region of Ontario

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

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

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

Why use momondo?

An easier way to manage your Region of Ontario 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 Ontario

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