$105 Find Cheap Flights from Washington Dulles Airport to Ontario - Compare and Save

The cheapest ticket to Ontario from Washington, D.C. Dulles Intl Airport found in the last 5 days was to Toronto, at $135 round-trip. The most popular route is from Washington, D.C. Dulles Intl Airport (IAD) to Toronto Pearson Intl Airport (YYZ), and the cheapest round-trip airline ticket found on this route in the last 5 days was $235.

The cheapest time of day to fly to Ontario is generally in the evening, when round-trip flights cost $378 on average. Morning departures are around 11% more expensive than evening flights, on average. The most expensive time of day to fly to Ontario is generally at night, which is peak travel time and where the average cost of a ticket is $431.

No, with an average price for the route of $386, prices are generally cheapest when you fly direct.

The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Ontario is September, when tickets cost $305 (return) on average. On the other hand, the most expensive months are February and October, when the average cost of round-trip tickets is $394 and $375 respectively.

When flying from Washington Dulles Airport to Ontario, you should consider leaving on a Thursday and avoid Sundays if you are looking for the best rates. For your return to Washington Dulles Airport, you’ll find the best rates on Fridays and the most expensive ones on Sundays.

To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Ontario, you should book around 4 weeks before departure, which saves you about 54% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

There are 4 airlines that fly nonstop from Washington, D.C. Dulles Intl Airport to Ontario. They are: Air Canada, Porter Airlines, United Airlines and Air Transat. The cheapest price of all airlines flying this route was found with Porter Airlines at $54 for a round-trip flight to Toronto Pearson Intl Airport (YYZ). On average, Porter Airlines offers the best prices for nonstop flights between Washington, D.C. Dulles Intl Airport and Ontario.

Washington, D.C. Dulles Intl Airport and Ontario are connected by different airlines. The airlines that fly that route the most regularly are United Airlines (83 flights per week), Air Canada (80 flights per week), and Porter Airlines (28 flights per week).

The duration of a flight to Ontario depends on your arrival airport. The shortest routes to Ontario from Washington, D.C. Dulles Intl Airport are to Toronto, which takes 1h 24m, Ottawa, which takes 1h 41m, and Sudbury, which takes 3h 50m.

There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

The earliest flight from Washington, D.C. Dulles Intl Airport to Ontario departs at 8:25 am, landing in Toronto at 10:04 am.

If you prefer to fly at night, the latest flight from Washington, D.C. Dulles Intl Airport to Ontario jets off at 10:19 pm and lands in Toronto at 11:54 pm.