How to find the cheapest flight from
Washington Dulles Intl (IAD) to Ontario
How far in advance should I book a flight from Washington Dulles Intl to Ontario?
When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 61 days in advance, which can save you up to 36% on flights from Washington Dulles Intl to Ontario compared to booking the week you need them. Waiting 61 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $306. For sooner than that we have options available in the next 3 days from $373.
What is the cheapest month to fly from Washington Dulles Intl to Ontario?
Our data shows that September tends to be the cheapest month to fly to Ontario from Washington Dulles Intl. Users have commonly found prices around $286 for the month, but tickets can be as low as $137. Due to multiple factors, prepare for potentially higher prices in November.
One-way flights to Ontario from Washington Dulles Intl
The cheapest one-way flights from Washington Dulles Intl to Ontario
8:46 am - 5:42 am
12:25 pm - 1:56 pm
12:45 pm - 3:12 am
Related info for your journey
Useful info, stats and facts about Washington Dulles Intl to Ontario flights.
Arrival points for flights from Washington Dulles Intl to Ontario
Destination information for Ontario
Things to know before you go. Useful info for your trip from Washington Dulles Intl to Ontario
Fort Frances (YAG)
Ste. Marie Marie (YAM)