Cheap flights from Atlanta to Ontario from $149

The month of August is, on average, the cheapest month to fly to Region of Ontario from Atlanta, with most prices found around $55. If you aren’t able to travel during the month of August, then book flights to Region of Ontario from Atlanta during December instead. Flights to Region of Ontario in December, while not as cheap as those in August, still average around $99.

According to our data, Wednesday is the cheapest day to fly to Region of Ontario from Atlanta. The lowest ticket price found for a Wednesday departure recently was $935. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Atlanta to Region of Ontario on a Monday will generally be more expensive and average around $1,077. 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 at noon. momondo users have found flights departing from Atlanta to Region of Ontario at noon for as low as $676. 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 morning are often more expensive with an average ticket price of $1,064.

Fly from Atlanta Hartsfield-Jackson to Toronto Pearson Intl for the best Atlanta Hartsfield-Jackson - Ontario flight prices

You are more likely to see cheaper flights to Region of Ontario from Atlanta when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around $616 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 Atlanta for as low as $455 on momondo.

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

Delta and United Airlines are the most popular carriers operating from Atlanta Hartsfield-Jackson to Ontario

Delta, WestJet and Air Canada are the top three most popular airlines that fly to Region of Ontario from Atlanta according to our data. Delta is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Region of Ontario. Keep in mind that there are 4 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.

As of June 2026, there are 35 flights per day flying from Atlanta to Region of Ontario. The most common time of day flights depart is 2:00PM, with 41% of flights taking off in the afternoon.

As of June 2026, 251 flights take off from Atlanta and land in Region of Ontario each week. The most common flight departure day for this route is Mon, with 16% of weekly flights taking off on this day.