Cheap flights from Atlanta to Montreal from $139

The cheapest month to fly to Montreal from Atlanta is in January. Flight prices, which tend to average around $302, are often lower during this time because this is during the off-season. If you are unable to visit Montreal during the month of January, then departing from Atlanta during the month March is also very affordable. Most momondo users find prices during this month for around $461.

The cheapest day to depart from Atlanta to Montreal is on a Friday when prices can be found for as low as $715. Flights from Atlanta to Montreal on a Sunday will generally be more expensive and average around $974. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our most recent data shows that the best time of day to fly to Montreal is in the evening. Flights from Atlanta to Montreal during this time can be as low as $589. At noon is when there is more demand to fly to Montreal, so prices are often more expensive at around $1,000 per ticket.

Fly from Atlanta Hartsfield-Jackson to Montreal Pierre Elliott Trudeau Intl for the best Atlanta Hartsfield-Jackson - Montreal flight prices

You are more likely to see cheaper flights to Montreal from Atlanta when booking weeks ahead of your departure date. In general, you can expect to find flights to Montreal for around $521 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Montreal from Atlanta for as low as $360 on momondo.

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

You could potentially save up to 4% on your flight if you consider stops on a Atlanta to Montreal flight.

As of August 2026, prices for Atlanta to Montreal flights are approximately 44% more expensive when compared to flights at the same time last year.

Delta is the most popular carrier operating from Atlanta Hartsfield-Jackson to Montreal

Delta, WestJet and Air Canada are the top three most popular airlines that fly to Montreal from Atlanta according to our data. Delta is the first choice among our users, with 59% of people opting to fly with this airline when traveling to Montreal. Keep in mind that there are 3 different airlines that fly to Montreal on a routine basis, so you have a few additional options to choose from.

The number of flights available between Atlanta and Montreal is 14 per day as of August 2026. The most frequent departure time is 9:00PM, with 48% of daily flights leaving in the afternoon.

The number of flights available between Atlanta and Montreal is 100 per week as of August 2026. The most frequent departure day is Mon, with 16% of weekly flights leaving on this day.