$92 Find Cheap Flights from Ontario to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Dulles Intl departing on 7/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Cheap Flights from Ontario to Dulles Intl

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Dulles Intl 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.

Recent round-trip flight deals from Ontario to Dulles Intl

Thu, Jul 3 - Sat, Jul 12
Porter Airlines Logo
8:45 am - 10:16 amYTZ-IAD
1h 31mnonstop
Porter Airlines Logo
4:10 pm - 5:43 pmIAD-YTZ
1h 33mnonstop
$145Porter Airlines
Find Deal
Fri, Jul 11 - Mon, Jul 14
Porter Airlines Logo
8:45 am - 10:16 amYTZ-IAD
1h 31mnonstop
Porter Airlines Logo
4:10 pm - 5:43 pmIAD-YTZ
1h 33mnonstop
$146Porter Airlines
Find Deal
Tue, Aug 19 - Wed, Aug 20
Air Canada Logo
8:10 am - 9:37 amYYZ-IAD
1h 27mnonstop
Air Canada Logo
2:25 pm - 4:01 pmIAD-YYZ
1h 36mnonstop
$170Air Canada
Find Deal
Wed, Aug 6 - Mon, Aug 11
Air Canada Logo
8:10 am - 9:37 amYYZ-IAD
1h 27mnonstop
Air Canada Logo
2:25 pm - 4:01 pmIAD-YYZ
1h 36mnonstop
$171Air Canada
Find Deal
Tue, Oct 7 - Wed, Oct 8
United Airlines Logo
9:00 am - 8:55 pmYYZ-IAD
11h 55m1 stop
United Airlines Logo
8:28 am - 10:04 amIAD-YYZ
1h 36mnonstop
$174United Airlines
Find Deal
Tue, Jul 29 - Tue, Aug 5
Logo
1:25 pm - 2:56 pmYTZ-IAD
1h 31mnonstop
Logo
4:10 pm - 5:43 pmIAD-YTZ
1h 33mnonstop
$181
Find Deal
Thu, Jul 3 - Thu, Jul 10
Air Transat Logo
8:45 am - 10:16 amYTZ-IAD
1h 31mnonstop
Air Transat Logo
4:10 pm - 5:43 pmIAD-YTZ
1h 33mnonstop
$182Air Transat
Find Deal
Tue, Jul 29 - Tue, Aug 5
Logo
1:25 pm - 2:56 pmYTZ-IAD
1h 31mnonstop
Logo
4:10 pm - 5:43 pmIAD-YTZ
1h 33mnonstop
$185
Find Deal
Sat, Jul 12 - Sat, Jul 19
Air Transat Logo
1:25 pm - 2:56 pmYTZ-IAD
1h 31mnonstop
Air Transat Logo
4:10 pm - 5:43 pmIAD-YTZ
1h 33mnonstop
$187Air Transat
Find Deal
Sat, Dec 6 - Sun, Dec 7
United Airlines Logo
4:10 pm - 9:22 pmYYZ-IAD
5h 12m1 stop
United Airlines Logo
8:15 am - 1:29 pmIAD-YYZ
5h 14m1 stop
$284United Airlines
Find Deal
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Good to know

Low seasonFebruary
High seasonOctober
Cheapest flight$92
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly with an average 14% increase in price.
Flight from Toronto Island to Washington Dulles Airport

Flights from Ontario to Dulles Intl: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Ontario to Dulles Intl 
Learn how KAYAK collects reviews and tips from users.
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.

FAQs for booking Ontario to Washington Dulles Airport flights

  • How does KAYAK find such low prices on flights from Ontario to Washington Dulles Airport?

    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 Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport 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 Dulles Airport?

    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 Dulles Airport 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 Dulles Airport?

    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 Dulles Airport 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 Dulles Intl?

Book flights to Dulles Intl if you plan to visit one of these locations
Clinton

Everything you need to know for your flight to Dulles Intl

Information on your arrival and departure airports

Washington Dulles Airport (IAD)

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