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 51% of people opting to fly with this airline when traveling 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.

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

Porter Airlines, Air Canada, 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 December 2025, there are 4 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.

$100 Cheap Flights from Washington, D.C. Dulles Intl Airport to Region of Ontario in 2025/26

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 35 per day as of December 2025. The most frequent departure time is 5:00PM, with 57% 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 December 2025, there are 250 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

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One-way

Last minute

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Cheap round-trip flights

Enter your travel dates to find the best prices.

11:35 am - 1:09 pm

IAD

YTZ

1h 34mnonstop

8:50 am - 10:19 am

YTZ

IAD

1h 29mnonstop

$212Porter Airlines

Wed, Jan 7 - Wed, Jan 14

11:35 am - 1:09 pm

IAD

YTZ

1h 34mnonstop

8:50 am - 10:19 am

YTZ

IAD

1h 29mnonstop

$213Porter Airlines

Thu, Jan 8 - Fri, Jan 9

11:35 am - 1:09 pm

IAD

YTZ

1h 34mnonstop

8:50 am - 10:19 am

YTZ

IAD

1h 29mnonstop

$214Porter Airlines

Wed, Jan 28 - Fri, Jan 30

9:00 am - 10:29 am

IAD

YYZ

1h 29mnonstop

6:55 pm - 8:29 pm

YYZ

IAD

1h 34mnonstop

$215Air Canada

Tue, Feb 3 - Tue, Feb 10

11:35 am - 1:09 pm

IAD

YTZ

1h 34mnonstop

8:50 am - 10:19 am

YTZ

IAD

1h 29mnonstop

$215Porter Airlines

Wed, Jan 7 - Mon, Jan 12

9:00 am - 10:29 am

IAD

YYZ

1h 29mnonstop

6:55 pm - 8:29 pm

YYZ

IAD

1h 34mnonstop

$217Air Canada

Mon, Feb 2 - Mon, Feb 9

8:53 pm - 2:20 pm

IAD

YYZ

17h 27m1 stop

5:15 pm - 8:40 am

YYZ

IAD

15h 25m1 stop

$233Multiple Airlines

Fri, Jan 16 - Thu, Jan 22

8:20 am - 4:02 pm

IAD

YYZ

7h 42m1 stop

7:40 pm - 9:25 pm

YYZ

IAD

1h 45mnonstop

$235United Airlines

Fri, Jan 9 - Fri, Jan 9

9:45 am - 11:30 am

IAD

YUL

1h 45mnonstop

6:45 am - 10:22 am

YUL

IAD

3h 37m1 stop

$262Multiple Airlines

Thu, Jan 29 - Mon, Feb 2

8:17 am - 5:05 pm

IAD

YXU

8h 48m2 stops

5:40 pm - 9:25 pm

YXU

IAD

3h 45m1 stop

$701United Airlines

Sun, Feb 1 - Sun, Feb 8

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

Feb 3

IAD9:00 amWashington, D.C. Dulles Intl

1h 29m

YYZ10:29 amToronto Pearson Intl

Feb 10

YYZ6:55 pmToronto Pearson Intl

1h 34m

IAD8:29 pmWashington, D.C. Dulles Intl

$215

Find similar

Air Canada

Feb 2

IAD9:00 amWashington, D.C. Dulles Intl

1h 29m

YYZ10:29 amToronto Pearson Intl

Feb 9

YYZ6:55 pmToronto Pearson Intl

1h 34m

IAD8:29 pmWashington, D.C. Dulles Intl

$217

Find similar

Air Canada

Feb 2

IAD9:45 amWashington, D.C. Dulles Intl

5h 59m

1 stop

YYZ3:44 pmToronto Pearson Intl

Feb 9

YYZ6:55 pmToronto Pearson Intl

1h 34m

IAD8:29 pmWashington, D.C. Dulles Intl

$222

Find similar

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

Jan 9

IAD8:20 amWashington, D.C. Dulles Intl

7h 42m

1 stop

YYZ4:02 pmToronto Pearson Intl

Jan 9

YYZ7:40 pmToronto Pearson Intl

1h 45m

IAD9:25 pmWashington, D.C. Dulles Intl

$235

Find similar

United Airlines

Jan 16

IAD10:06 pmWashington, D.C. Dulles Intl

1h 40m

YYZ11:46 pmToronto Pearson Intl

Jan 21

YYZ7:40 pmToronto Pearson Intl

1h 45m

IAD9:25 pmWashington, D.C. Dulles Intl

$250

Find similar

United Airlines

Jan 24

IAD10:28 pmWashington, D.C. Dulles Intl

11h 30m

1 stop

YYZ9:58 amToronto Pearson Intl

Jan 25

YYZ12:45 pmToronto Pearson Intl

8h 28m

1 stop

IAD9:13 pmWashington, D.C. Dulles Intl

$255

Find similar

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.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Wed 1/7

11:35 am-1:09 pm

Nonstop1h 34m

Toronto Island

Wed 1/14

8:50 am-10:19 am

Nonstop1h 29m

$212

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 1/8

11:35 am-1:09 pm

Nonstop1h 34m

Toronto Island

Fri 1/9

8:50 am-10:19 am

Nonstop1h 29m

$213

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Wed 1/28

11:35 am-1:09 pm

Nonstop1h 34m

Toronto Island

Fri 1/30

8:50 am-10:19 am

Nonstop1h 29m

$214

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Tue 2/3

9:00 am-10:29 am

Nonstop1h 29m

Toronto Pearson Intl

Tue 2/10

6:55 pm-8:29 pm

Nonstop1h 34m

$215

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Wed 1/7

11:35 am-1:09 pm

Nonstop1h 34m

Toronto Island

Mon 1/12

8:50 am-10:19 am

Nonstop1h 29m

$215

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Mon 2/2

9:00 am-10:29 am

Nonstop1h 29m

Toronto Pearson Intl

Mon 2/9

6:55 pm-8:29 pm

Nonstop1h 34m

$217

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Fri 1/16

8:53 pm-2:20 pm

1 stop17h 27m

Toronto Pearson Intl

Thu 1/22

5:15 pm-8:40 am

1 stop15h 25m

$233

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Fri 1/9

8:20 am-4:02 pm

1 stop7h 42m

Toronto Pearson Intl

Fri 1/9

7:40 pm-9:25 pm

Nonstop1h 45m

$235

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Thu 1/29

9:45 am-11:30 am

Nonstop1h 45m

Montreal Pierre Elliott Trudeau Intl

Mon 2/2

6:45 am-10:22 am

1 stop3h 37m

$262

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Sun 2/1

8:17 am-5:05 pm

2 stops8h 48m

London

Sun 2/8

5:40 pm-9:25 pm

1 stop3h 45m

$701

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 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 June is, on average, the cheapest month to fly to Region of Ontario from Washington, D.C. Dulles Intl Airport, with most prices found around $229. If you aren’t able to travel during the month of June, then book flights to Region of Ontario from Washington, D.C. Dulles Intl Airport during February instead. Flights to Region of Ontario in February, while not as cheap as those in June, still average around $240.

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

According to our data, Friday is the cheapest day to fly to Region of Ontario from Washington, D.C. Dulles Intl Airport. The lowest ticket price found for a Friday departure recently was $345. 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 Sunday will generally be more expensive and average around $530. 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 $325. 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 $703.

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 to Region of 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 $335 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 $250 on momondo.

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

There are 4 cabin classes available to choose from on Washington, D.C. Dulles Intl to 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 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	$115
Fastest flight time	1h 18m
Direct flights	Every day
Airports in Region of Ontario	123 airports

The best one-way flight to Region of Ontario from Washington, D.C. Dulles Intl Airport in the past 72 hours is $115. 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 $232.

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 123 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

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 December 2025, there are 4 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 26.21% of all bookings. The subsequent popular models are Embraer 175 (Enhanced Winglets) at 21.84%, Canadair (Bombardier) Regional Jet 900 at 13.44%, and Embraer 175 at 11.95%.

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 8.0 399 reviews	Search Porter Airlines flights
Air Transat	PriceFrom $176	Free Cancellation	Rating 7.8 484 reviews	Search Air Transat flights
Air Canada	PriceFrom $185	Free Cancellation	Rating 7.1 10,549 reviews	Search Air Canada flights
United Airlines	PriceFrom $248	Free Cancellation	Rating 7.4 9,099 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.

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Popular cities in Ontario

Flights to Torontofrom $110

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Flights to Calgaryfrom $133

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Flights to Kelownafrom $131

Flights to St. John'sfrom $238

Flights to Reginafrom $141

Washington, D.C. Dulles Intl Airport flight routes

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Flights from Washington, D.C. Dulles Intl to Wilmington New Hanover County

Flights from Washington, D.C. Dulles Intl to Atlanta Hartsfield-Jackson

Cheap flights from Washington, D.C. Dulles Intl Airport to Ontario from $100

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

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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

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

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.

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?

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 to Region of Ontario?

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

There are 4 cabin classes available to choose from on Washington, D.C. Dulles Intl to 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 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.

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

Porter Airlines, Air Canada, and Delta are the most popular carriers operating 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?

The number of flights available between Washington, D.C. Dulles Intl Airport and Region of Ontario is 35 per day as of December 2025. The most frequent departure time is 5:00PM, with 57% of daily flights leaving in the afternoon.

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

As of December 2025, there are 250 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.

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

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

How many operators does momondo search 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?

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

What is the most popular plane model from Washington, D.C. Dulles Intl Airport to Region of 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?

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

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

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

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

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

Popular cities in Ontario

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