Cheap flights from District of Columbia to Ontario from $91

The month of June is, on average, the cheapest month to fly to Region of Ontario from District of Columbia, with most prices found around $219. If you aren’t able to travel during the month of June, then book flights to Region of Ontario from District of Columbia during January instead. Flights to Region of Ontario in January, while not as cheap as those in June, still average around $262.

According to our data, Friday is the cheapest day to fly to Region of Ontario from District of Columbia. The lowest ticket price found for a Friday departure recently was $341. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from District of Columbia to Region of Ontario on a Tuesday will generally be more expensive and average around $482. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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 District of Columbia to Region of Ontario in the afternoon for as low as $333. 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 evening are often more expensive with an average ticket price of $506.

Fly from Washington, D.C. Dulles Intl to Toronto Island for the best District of Columbia - Ontario flight prices

You are more likely to see cheaper flights to Region of Ontario from District of Columbia when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around $339 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 District of Columbia for as low as $264 on momondo.

There are 4 cabin classes available to choose from on District of Columbia to Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Porter Airlines, Air Canada, and Delta are the most popular carriers operating from District of Columbia to Ontario

Air Canada, United Airlines and Porter Airlines are the top three most popular airlines that fly to Region of Ontario from District of Columbia according to our data. Air Canada is the first choice among our users, with 54% 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.

As of March 2026, there are 50 flights per day flying from District of Columbia to Region of Ontario. The most common time of day flights depart is 12:00PM, with 52% of flights taking off in the afternoon.

The number of flights available between District of Columbia and Region of Ontario is 351 per week as of March 2026. The most frequent departure day is Fri, with 16% of weekly flights leaving on this day.