How does KAYAK find such low prices on flights from Ontario to Washington, D.C.?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Washington, D.C.. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Washington, D.C.?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from Ontario is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Ontario to Washington, D.C.?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington, D.C. with an airline and back to Ontario with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Washington, D.C.?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington, D.C. from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$124 CHEAP FLIGHTS from Ontario to Washington, D.C.

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Flight Deals

Cheap Flights from Ontario to Washington, D.C.

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Washington, D.C. that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Ontario to Washington, D.C.

Fri, Oct 17 - Mon, Oct 20

8:45 am - 10:16 amYTZ-IAD

1h 31mnonstop

4:20 pm - 5:53 pmIAD-YTZ

1h 33mnonstop

$185Porter Airlines

Find Deal

Tue, Oct 28 - Tue, Nov 4

8:55 am - 10:24 amYTZ-IAD

1h 29mnonstop

11:40 am - 1:10 pmIAD-YTZ

1h 30mnonstop

$189Porter Airlines

Find Deal

Tue, Oct 28 - Tue, Nov 4

8:15 am - 12:19 pmYYZ-DCA

4h 04m1 stop

6:50 pm - 8:27 pmDCA-YYZ

1h 37mnonstop

$195Air Canada

Find Deal

Sat, Oct 4 - Sat, Oct 11

6:30 am - 12:08 pmYYZ-DCA

5h 38m1 stop

6:50 pm - 8:22 pmDCA-YYZ

1h 32mnonstop

$196Air Canada

Find Deal

Wed, Oct 29 - Wed, Nov 5

2:45 pm - 4:27 pmYYZ-IAD

1h 42mnonstop

5:15 pm - 6:57 pmIAD-YYZ

1h 42mnonstop

$217United Airlines

Find Deal

Fri, Oct 24 - Sun, Oct 26

12:45 pm - 2:25 pmYYZ-IAD

1h 40mnonstop

9:45 am - 2:44 pmIAD-YYZ

4h 59m1 stop

$223

Find Deal

Sat, Oct 4 - Sat, Oct 11

2:30 pm - 4:10 pmYYZ-IAD

1h 40mnonstop

10:10 pm - 9:58 amIAD-YYZ

11h 48m1 stop

$225United Airlines

Find Deal

Fri, Oct 17 - Sun, Oct 19

8:45 am - 10:16 amYTZ-IAD

1h 31mnonstop

9:35 am - 2:45 pmIAD-YTZ

5h 10m1 stop

$226

Find Deal

Sat, Oct 4 - Sun, Oct 5

7:47 pm - 9:25 pmYYZ-IAD

1h 38mnonstop

3:36 pm - 5:14 pmIAD-YYZ

1h 38mnonstop

$232Lufthansa

Find Deal

Sat, Oct 4 - Sun, Oct 5

3:00 pm - 9:24 pmYYZ-IAD

6h 24m1 stop

8:28 am - 10:04 amIAD-YYZ

1h 36mnonstop

$238Lufthansa

Find Deal

Cheapest round-trip

$185

Overall average: $256

Porter Airlines

Fri 10/17Mon 10/20

YTZ - IAD • Non-stop

Cheapest one-way

$124

Typical prices: $123-299

Porter Airlines

Fri 10/3

YTZ - IAD • Non-stop

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Washington, D.C.!

Useful Info

Low season	January
High season	June
Cheapest flight	$124

Best time to beat the crowds with an average 7% drop in price.

Most popular time to fly with an average 6% increase in price.

Flight from Toronto Island to Washington Dulles Airport

Verified travelerFlew with Air CanadaYYZ-IADDec 2024

Get on a regional sized (smaller than Boeing 737 or Airbus A320) jet if you can, they are older and have more legroom than newer aircraft.

Verified travelerFlew with United AirlinesYYZ-IADNov 2024

Do not carry bigger the specified sized bags for cabin baggage. Only one carry on ba

Verified travelerFlew with Air CanadaYYZ-IADAug 2024

Check the departure board carefully when you get to the airport.

How does KAYAK find such low prices on flights from Ontario to Washington, D.C.?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Washington, D.C..
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Washington, D.C.?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Ontario to Washington, D.C.?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington, D.C. with an airline and back to Ontario with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Washington, D.C.?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington, D.C. from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Linthicum Heights

Springfield

Hanover

Gaithersburg

Towson

Oxon Hill

Owings Mills

Greenbelt

Ellicott City

Glen Burnie

Colonial Beach

Edgewood

Pikesville

Lutherville Timonium

Stevensville

Hunt Valley

Hyattsville

Capitol Heights

Camp Springs

Westminster

Everything you need to know for your flight to Washington, D.C.

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Cabin class types available on flights to Ontario

First Class flights to Washington, D.C.from $463

Business Class flights to Washington, D.C.from $460

Prem Econ Class flights to Washington, D.C.from $935

Economy Class flights to Washington, D.C.from $125

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.

$124 Find Cheap Flights from Ontario to Washington, D.C.

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C.

Cheap Flights from Ontario to Washington, D.C.

Recent round-trip flight deals from Ontario to Washington, D.C.

Recent one-way flight deals from Ontario to Washington, D.C.

Recent last minute flight deals from Ontario to Washington, D.C.

Recent direct flight deals from Ontario to Washington, D.C.

Everything you should know

Good to know

Flights from Ontario to Washington, D.C.: the best tips from KAYAK users

FAQs for booking flights from Ontario to Washington, D.C.

How does KAYAK find such low prices on flights from Ontario to Washington, D.C.?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Washington, D.C..

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Washington, D.C.?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Ontario to Washington, D.C.?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington, D.C. with an airline and back to Ontario with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Washington, D.C.?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington, D.C. from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Washington, D.C.?

Everything you need to know for your flight to Washington, D.C.

Cabin class types available on flights to Ontario

Complete your trip to Washington, D.C. with a hotel stay or car rental

Find direct flights for Washington, D.C.

Flights to other popular destinations

Flights from domestic origins to Washington, D.C.

Choose which airport to fly into in Washington, D.C.

Find deals for your return flight