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 50% 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.

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

Porter Airlines, United Airlines, and Air Canada 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 26m on average, while flying from Baltimore to Toronto Pearson Intl Airport is 4h 32m 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 week?

470 flights are operational weekly from Washington, D.C. to Region of Ontario as of June 2026. The most popular departure day for this route is Mon, with 15% of flights per week taking off on this day.

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

As of June 2026, there are 67 flights per day flying from Washington, D.C. to Region of Ontario. The most common time of day flights depart is 5:00PM, with 47% of flights taking off in the afternoon.

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 June 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.

$97 Cheap Flights from Washington, D.C. to Ontario in 2026

Discover deals from 900+ travel sites with momondo.

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

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:55 pm - 5:25 pm

IAD

YTZ

1h 30mnonstop

8:55 am - 10:25 am

YTZ

IAD

1h 30mnonstop

$206Porter Airlines

Thu, Jul 9 - Thu, Jul 16

11:05 am - 12:35 pm

IAD

YTZ

1h 30mnonstop

8:55 am - 10:25 am

YTZ

IAD

1h 30mnonstop

$208Porter Airlines

Tue, Jul 7 - Tue, Jul 14

4:00 pm - 5:30 pm

IAD

YTZ

1h 30mnonstop

8:55 am - 10:25 am

YTZ

IAD

1h 30mnonstop

$209Porter Airlines

Thu, Jul 9 - Mon, Jul 13

4:00 pm - 5:30 pm

IAD

YTZ

1h 30mnonstop

1:45 pm - 3:16 pm

YTZ

IAD

1h 31mnonstop

$210Porter Airlines

Mon, Jun 29 - Tue, Jun 30

12:40 pm - 6:20 pm

DCA

YTZ

5h 40m

1 stop

8:20 am - 12:00 pm

YTZ

DCA

3h 40m

1 stop

$246Air Canada

Fri, Jul 24 - Fri, Jul 31

12:40 pm - 7:12 pm

DCA

YYZ

6h 32m

1 stop

8:55 pm - 10:31 pm

YYZ

DCA

1h 36mnonstop

$254Air Canada

Fri, Jul 24 - Fri, Jul 31

6:10 am - 11:49 am

IAD

YYZ

5h 39m

1 stop

2:30 pm - 4:13 pm

YYZ

IAD

1h 43mnonstop

$293United Airlines

Tue, Jun 30 - Tue, Jun 30

4:20 pm - 5:50 pm

IAD

YYZ

1h 30mnonstop

1:55 pm - 3:24 pm

YYZ

IAD

1h 29mnonstop

$298GOL

Wed, Jul 8 - Mon, Jul 13

7:00 am - 5:05 pm

BWI

YUL

10h 05m

1 stop

6:00 am - 11:42 am

YUL

BWI

5h 42m

1 stop

$495Delta

Thu, Sep 10 - Tue, Sep 15

10:32 am - 4:41 pm

BWI

YTZ

6h 09m

1 stop

7:20 pm - 9:27 am

YTZ

BWI

14h 07m

1 stop

$593United Airlines

Tue, Jul 21 - Sat, Jul 25

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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

Jun 30

DCA6:57 amWashington, D.C. Reagan-National

7h 38m

1 stop

YYZ2:35 pmToronto Pearson Intl

Jul 1

YYZ5:29 pmToronto Pearson Intl

1h 50m

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

$317

American Airlines

Jul 9

DCA10:15 amWashington, D.C. Reagan-National

1h 44m

YYZ11:59 amToronto Pearson Intl

Jul 16

YYZ5:25 pmToronto Pearson Intl

1h 50m

DCA7:15 pmWashington, D.C. Reagan-National

$335

American Airlines

Jun 20

DCA2:59 pmWashington, D.C. Reagan-National

1h 49m

YYZ4:48 pmToronto Pearson Intl

Jun 30

YYZ5:29 pmToronto Pearson Intl

1h 50m

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

$391

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

Jul 8

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

7h 49m

1 stop

YYZ9:19 pmToronto Pearson Intl

Jul 10

YYZ5:05 pmToronto Pearson Intl

5h 53m

1 stop

DCA10:58 pmWashington, D.C. Reagan-National

$333

Delta

Jul 4

IAD6:00 amWashington, D.C. Dulles Intl

7h 34m

1 stop

YYZ1:34 pmToronto Pearson Intl

Sep 12

YYZ3:55 pmToronto Pearson Intl

7h 04m

1 stop

IAD10:59 pmWashington, D.C. Dulles Intl

$340

Delta

Sep 28

IAD6:15 pmWashington, D.C. Dulles Intl

5h 09m

1 stop

YYZ11:24 pmToronto Pearson Intl

Oct 3

YYZ6:10 pmToronto Pearson Intl

5h 04m

1 stop

IAD11:14 pmWashington, D.C. Dulles Intl

$348

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 7/9

3:55 pm-5:25 pm

Nonstop1h 30m

Toronto Island

Thu 7/16

8:55 am-10:25 am

Nonstop1h 30m

$206

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Tue 7/7

11:05 am-12:35 pm

Nonstop1h 30m

Toronto Island

Tue 7/14

8:55 am-10:25 am

Nonstop1h 30m

$208

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 7/9

4:00 pm-5:30 pm

Nonstop1h 30m

Toronto Island

Mon 7/13

8:55 am-10:25 am

Nonstop1h 30m

$209

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Mon 6/29

4:00 pm-5:30 pm

Nonstop1h 30m

Toronto Island

Tue 6/30

1:45 pm-3:16 pm

Nonstop1h 31m

$210

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Fri 7/24

12:40 pm-6:20 pm

1 stop5h 40m

Toronto Island

Fri 7/31

8:20 am-12:00 pm

1 stop3h 40m

$246

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Fri 7/24

12:40 pm-7:12 pm

1 stop6h 32m

Toronto Pearson Intl

Fri 7/31

8:55 pm-10:31 pm

Nonstop1h 36m

$254

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Tue 6/30

6:10 am-11:49 am

1 stop5h 39m

Toronto Pearson Intl

Tue 6/30

2:30 pm-4:13 pm

Nonstop1h 43m

$293

Quickest round-trip

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Wed 7/8

4:20 pm-5:50 pm

Nonstop1h 30m

Toronto Pearson Intl

Mon 7/13

1:55 pm-3:24 pm

Nonstop1h 29m

$298

BaltimoreMontreal

BWI - YUL

BWIYUL

Baltimore/Washington

Thu 9/10

7:00 am-5:05 pm

1 stop10h 05m

Montreal Pierre Elliott Trudeau Intl

Tue 9/15

6:00 am-11:42 am

1 stop5h 42m

$495

BaltimoreToronto

BWI - YTZ

BWIYTZ

Baltimore/Washington

Tue 7/21

10:32 am-4:41 pm

1 stop6h 09m

Toronto Island

Sat 7/25

7:20 pm-9:27 am

1 stop14h 07m

$593

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. 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 $264. 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 $282.

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 $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. to Region of Ontario on a Saturday will generally be more expensive and average around $495. 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 $358. 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 morning are often more expensive with an average ticket price of $423.

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 $365 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 $263 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	$103
Fastest flight time	1h 25m
Direct flights	Every day
Airports in Region of Ontario	125 airports

The best one-way flight to Region of Ontario from Washington, D.C. in the past 72 hours is $103. The best round-trip flight deal from Washington, D.C. to Region of Ontario found on momondo in the last 72 hours is $239.

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

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

There are 125 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 June 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 (31.77% of total bookings). The next most popular plane models are Embraer 175 (Enhanced Winglets) (17.01%), Embraer 175 (15.09%), and Canadair (Bombardier) Regional Jet 900 (10.61%).

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 8.0 438 reviews	Search Porter Airlines flights
Delta	PriceFrom $106	Free Cancellation	Rating 7.9 8,400 reviews	Search Delta flights
United Airlines	PriceFrom $139	Free Cancellation	Rating 7.4 9,804 reviews	Search United Airlines flights
Air Canada	PriceFrom $187	Free Cancellation	Rating 7.1 11,163 reviews	Search Air Canada flights
Air Transat	PriceFrom $211	Free Cancellation	Rating 7.8 555 reviews	Search Air Transat flights
American Airlines	PriceFrom $271	Free Cancellation	Rating 7.1 11,640 reviews	Search American Airlines flights
WestJet	PriceFrom $495	Free Cancellation	Rating 7.2 3,356 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.

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Popular cities in Ontario

Flights to Torontofrom $156

Flights to Vancouverfrom $125

Flights to Montrealfrom $221

Flights to Calgaryfrom $216

Flights to Ottawafrom $258

Flights to Halifaxfrom $281

Flights to Winnipegfrom $324

Flights to Québec Cityfrom $337

Flights to Saskatoonfrom $328

Flights to Kelownafrom $245

Flights to St. John'sfrom $427

Flights to Reginafrom $394

Cheap flights from Washington, D.C. to Ontario from $97

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 7/12. 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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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

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

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

momondo Fare Finder

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

See travel insights to Ontario from

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

Popular cities in Ontario

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