Cheap flights from Ontario to North America from $20

The month of February is, on average, the cheapest month to fly to North America from Ontario, with most prices found around $324. If you are unable to visit North America during the month of February, then departing from Ontario during the month January is also very affordable. Most momondo users find prices during this month for around $327.

The cheapest day to depart from Ontario to North America is on a Tuesday. Travelers who choose to depart for North America on a Tuesday will often find tickets for as low as $431. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to North America on Saturday is $488.

The cheapest time of day to fly to North America is in the morning when flights can be purchased for as low as $452. Try not to purchase tickets in the evening because they tend to be around $454. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Ontario to San Francisco for the best Ontario - North America flight prices

You are more likely to see cheaper flights to North America from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to North America for around $403 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to North America from Ontario for as low as $270 on momondo.

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

Southwest, United Airlines, and Frontier are the most popular carriers operating from Ontario to North America

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to North America from Ontario according to our data. American Airlines is the first choice among our users, with 29% of people opting to fly with this airline when traveling to North America. Keep in mind that there are 17 different airlines that fly to North America on a routine basis, so you have a few additional options to choose from.

Historically, on average around 13% of flights between Ontario and North America have experienced a delay on any given week. The average delay length over the past 12 months has been 124 minutes.

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

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

According to our data, Delta have had the least number of delays on this route over the last 12 months; with about 6% of their flights experiencing any sort of delay.

As of October 2026, there are 19 flights per day flying from Ontario to North America. The most common time of day flights depart is 2:00PM, with 48% of flights taking off at noon.

As of October 2026, 138 flights take off from Ontario and land in North America each week. The most common flight departure day for this route is Fri, with 67% of weekly flights taking off on this day.