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

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

How long is the flight from Washington, D.C. to Region of Ontario?

Average flight duration from Washington, D.C. to Region of Ontario depends on which airport you fly into and out of. Flying from Washington, D.C. to Toronto Pearson Intl Airport is 1h 22m on average, while flying from Baltimore to Toronto Pearson Intl Airport is 5h 34m on average. Toronto Pearson Intl Airport is the most popular airport in Region of Ontario.

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

As of April 2026, there are 58 flights per day flying from Washington, D.C. to Region of Ontario. The most common time of day flights depart is 12:00PM, with 46% of flights taking off in the afternoon.

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. according to our data. Air Canada is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Region of Ontario. Keep in mind that there are 7 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.

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

412 flights are operational weekly from Washington, D.C. to Region of Ontario as of April 2026. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.

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

Prices for flights from Washington, D.C. to Ontario refresh daily.

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

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

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

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

The required travel and health documents for your Ontario 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 Ontario. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$100 Cheap Flights from Washington, D.C. to Ontario in 2026

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

5:15 pm - 6:42 pm

IAD

YTZ

1h 27mnonstop

2:55 pm - 4:12 pm

YTZ

IAD

1h 17mnonstop

$187Air Canada

Fri, Jun 5 - Mon, Jun 8

6:00 am - 11:47 am

DCA

YTZ

5h 47m

1 stop

7:40 am - 12:01 pm

YTZ

DCA

4h 21m

1 stop

$190Air Canada

Thu, May 14 - Sun, May 17

4:05 pm - 5:35 pm

IAD

YTZ

1h 30mnonstop

9:15 am - 10:46 am

YTZ

IAD

1h 31mnonstop

$191Porter Airlines

Mon, Jun 8 - Mon, Jun 15

11:30 am - 1:00 pm

IAD

YTZ

1h 30mnonstop

2:55 pm - 4:12 pm

YTZ

IAD

1h 17mnonstop

$192Multiple Airlines

Sat, May 30 - Mon, Jun 1

11:30 am - 1:00 pm

IAD

YTZ

1h 30mnonstop

1:50 pm - 3:21 pm

YTZ

IAD

1h 31mnonstop

$193Porter Airlines

Sat, Jun 6 - Wed, Jun 10

11:30 am - 1:00 pm

IAD

YTZ

1h 30mnonstop

2:55 pm - 4:12 pm

YTZ

IAD

1h 17mnonstop

$194Multiple Airlines

Sat, May 30 - Mon, Jun 1

4:20 pm - 9:32 pm

DCA

YTZ

5h 12m

1 stop

8:20 am - 12:01 pm

YTZ

DCA

3h 41m

1 stop

$195Air Canada

Sat, Jun 6 - Thu, Jun 11

11:30 am - 1:00 pm

IAD

YTZ

1h 30mnonstop

9:15 am - 10:46 am

YTZ

IAD

1h 31mnonstop

$195Porter Airlines

Sat, Jun 6 - Sat, Jun 13

9:45 am - 2:22 pm

IAD

YTZ

4h 37m

1 stop

2:55 pm - 4:12 pm

YTZ

IAD

1h 17mnonstop

$196Air Canada

Sat, May 30 - Mon, Jun 1

6:59 am - 8:31 am

DCA

YYZ

1h 32mnonstop

7:00 am - 12:01 pm

YYZ

DCA

5h 01m

1 stop

$196Air Canada

Thu, May 7 - Sun, May 10

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

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

Delta

May 29

DCA9:39 amWashington, D.C. Reagan-National

7h 42m

1 stop

YYZ5:21 pmToronto Pearson Intl

Jun 6

YYZ7:55 amToronto Pearson Intl

8h 25m

1 stop

DCA4:20 pmWashington, D.C. Reagan-National

$260

Delta

May 8

DCA6:20 amWashington, D.C. Reagan-National

7h 20m

1 stop

YYZ1:40 pmToronto Pearson Intl

May 19

YYZ6:37 pmToronto Pearson Intl

4h 47m

1 stop

DCA11:24 pmWashington, D.C. Reagan-National

$261

Delta

Jun 8

DCA1:30 pmWashington, D.C. Reagan-National

7h 49m

1 stop

YYZ9:19 pmToronto Pearson Intl

Jun 11

YYZ2:29 pmToronto Pearson Intl

8h 30m

1 stop

DCA10:59 pmWashington, D.C. Reagan-National

$266

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

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

American Airlines

May 20

DCA6:00 amWashington, D.C. Reagan-National

6h 00m

1 stop

YYZ12:00 pmToronto Pearson Intl

May 22

YYZ5:29 pmToronto Pearson Intl

1h 50m

DCA7:19 pmWashington, D.C. Reagan-National

$245

American Airlines

Jun 9

DCA1:59 pmWashington, D.C. Reagan-National

9h 06m

1 stop

YYZ11:05 pmToronto Pearson Intl

Jun 16

YYZ5:29 pmToronto Pearson Intl

1h 50m

DCA7:19 pmWashington, D.C. Reagan-National

$263

American Airlines

May 12

DCA2:58 pmWashington, D.C. Reagan-National

1h 47m

YYZ4:45 pmToronto Pearson Intl

May 16

YYZ5:25 pmToronto Pearson Intl

1h 46m

DCA7:11 pmWashington, D.C. Reagan-National

$273

momondo Fare Finder

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

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Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Fri 6/5

5:15 pm-6:42 pm

Nonstop1h 27m

Toronto Island

Mon 6/8

2:55 pm-4:12 pm

Nonstop1h 17m

$187

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Thu 5/14

6:00 am-11:47 am

1 stop5h 47m

Toronto Island

Sun 5/17

7:40 am-12:01 pm

1 stop4h 21m

$190

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Mon 6/8

4:05 pm-5:35 pm

Nonstop1h 30m

Toronto Island

Mon 6/15

9:15 am-10:46 am

Nonstop1h 31m

$191

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sat 5/30

11:30 am-1:00 pm

Nonstop1h 30m

Toronto Island

Mon 6/1

2:55 pm-4:12 pm

Nonstop1h 17m

$192

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sat 6/6

11:30 am-1:00 pm

Nonstop1h 30m

Toronto Island

Wed 6/10

1:50 pm-3:21 pm

Nonstop1h 31m

$193

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sat 5/30

11:30 am-1:00 pm

Nonstop1h 30m

Toronto Island

Mon 6/1

2:55 pm-4:12 pm

Nonstop1h 17m

$194

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Sat 6/6

4:20 pm-9:32 pm

1 stop5h 12m

Toronto Island

Thu 6/11

8:20 am-12:01 pm

1 stop3h 41m

$195

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sat 6/6

11:30 am-1:00 pm

Nonstop1h 30m

Toronto Island

Sat 6/13

9:15 am-10:46 am

Nonstop1h 31m

$195

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sat 5/30

9:45 am-2:22 pm

1 stop4h 37m

Toronto Island

Mon 6/1

2:55 pm-4:12 pm

Nonstop1h 17m

$196

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 5/7

6:59 am-8:31 am

Nonstop1h 32m

Toronto Pearson Intl

Sun 5/10

7:00 am-12:01 pm

1 stop5h 01m

$196

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How to get the cheapest flight ticket from Washington, D.C. 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., with most prices found around $278. If you aren’t able to travel during the month of June, then book flights to Region of Ontario from Washington, D.C. during September instead. Flights to Region of Ontario in September, while not as cheap as those in June, still average around $285.

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.. The lowest ticket price found for a Thursday departure recently was $344. 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. to Region of Ontario on a Saturday will generally be more expensive and average around $456. 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. to Region of Ontario in the afternoon for as low as $346. 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 $483.

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

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

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

You are more likely to see cheaper flights to Region of Ontario from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around $354 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. for as low as $285 on momondo.

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

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

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

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

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

Best Price Found	$112
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. in the past 72 hours is $112. The best round-trip flight deal from Washington, D.C. to Region of Ontario found on momondo in the last 72 hours is $220.

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

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

There are 123 airports in Region of Ontario. From Washington, D.C. there are direct flights to Toronto Pearson Intl (YYZ), Toronto Island (YTZ).

Search flight deals

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

When did momondo last update prices for flights from Washington, D.C. to Ontario?
Prices for flights from Washington, D.C. to Ontario refresh daily.
How many operators does momondo search for flights from Washington, D.C. to Ontario?
As of April 2026, there are 7 operators available to choose from for flights from Washington, D.C. to Ontario.
How old do you have to be to fly from Washington, D.C. 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. to Ontario.
What documentation or ID do you need to fly to Ontario?
The required travel and health documents for your Ontario 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 Ontario. 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 Washington, D.C. to Region of Ontario?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Washington, D.C. to Region of Ontario is De Havilland (Bombardier) DHC-8-400 Dash 8Q (24.64% of total bookings). The next most popular plane models are Embraer 175 (Enhanced Winglets) (18.19%), Embraer 175 (15.29%), and Canadair (Bombardier) Regional Jet 900 (13.46%).

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

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

Airline	Rating	Free Cancellation	Price
Porter Airlines	PriceFrom $54	Free Cancellation	Rating 8.0 435 reviews	Search Porter Airlines flights
United Airlines	PriceFrom $135	Free Cancellation	Rating 7.4 9,675 reviews	Search United Airlines flights
Delta	PriceFrom $138	Free Cancellation	Rating 7.9 8,466 reviews	Search Delta flights
Air Canada	PriceFrom $187	Free Cancellation	Rating 7.1 10,975 reviews	Search Air Canada flights
Air Transat	PriceFrom $211	Free Cancellation	Rating 7.8 542 reviews	Search Air Transat flights
American Airlines	PriceFrom $264	Free Cancellation	Rating 7.1 11,676 reviews	Search American Airlines flights
WestJet	PriceFrom $444	Free Cancellation	Rating 7.2 3,328 reviews	Search WestJet flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to Ontario. Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Washington, D.C. to Ontario on momondo can be filtered to show those which offer flexible booking policies.

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

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 Ontario from Washington, D.C..

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

Price alerts on flights to Ontario from Washington, D.C. 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.

An easier way to manage your Region of Ontario trip

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Popular cities in Ontario

Flights to Torontofrom $145

Flights to Vancouverfrom $130

Flights to Montrealfrom $211

Flights to Calgaryfrom $193

Flights to Ottawafrom $216

Flights to Halifaxfrom $213

Flights to Winnipegfrom $256

Flights to Québec Cityfrom $360

Flights to Saskatoonfrom $185

Flights to Kelownafrom $221

Flights to St. John'sfrom $315

Flights to Reginafrom $328

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

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Ontario departing on 6/16. 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 Washington, D.C. to Region of Ontario

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

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

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

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

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

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

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

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

What airlines fly to Region of Ontario?

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

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

How long is the flight from Washington, D.C. to Region of Ontario?

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

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

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

Compare and see reviews for airlines that fly from Washington, D.C. 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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