Cheap flights from the United States to Toronto from C$ 143

The month of January is, on average, the cheapest month to fly to Toronto from United States, with most prices found around C$ 434. The month of September is another great option to travel to Toronto, with average flight prices from United States averaging around C$ 459.

According to our data, Saturday is the cheapest day to fly to Toronto from United States. The lowest ticket price found for a Saturday departure recently was C$ 179. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from United States to Toronto on a Monday will generally be more expensive and average around C$ 220. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Flying to Toronto from United States in the evening is the least expensive time of day to depart. momondo users have found prices as low as C$ 163 when looking at flights departing in the evening. Try not to purchase tickets at noon because they tend to be around C$ 327. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Boston Logan Intl to Toronto Island for the best United States - Toronto flight prices

You are more likely to see cheaper flights to Toronto from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to Toronto for around C$ 344 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Toronto from United States for as low as C$ 260 on momondo.

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

United Airlines, Delta, and Porter Airlines are the most popular carriers operating from United States to Toronto

Porter Airlines, Air Canada and WestJet are the top three most popular airlines that fly to Toronto from United States according to our data. Porter Airlines is the first choice among our users, with 41% of people opting to fly with this airline when travelling to Toronto. Keep in mind that there are 9 different airlines that fly to Toronto on a routine basis, so you have a few additional options to choose from.

Historically, on average around 21% of flights between United States and Toronto have experienced a delay on any given week. The average delay length over the past 12 months has been 138 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines has had the least delays on this route over the last 12 months, with about 16% of their flights experiencing any sort of delay.

As of June 2026, there are 257 flights per day flying from United States to Toronto. The most common time of day flights depart is 9:00p.m., with 37% of flights taking off at noon.

As of June 2026, there are 1,805 flights per week flying from United States to Toronto. The most common day of the week flights depart is Mon, with 16% of flights taking off on this day.