Cheap flights from Atlanta to Portland from $99

The cheapest month to fly to Portland, Maine from Atlanta is in January. Flight prices, which tend to average around $424, are often lower during this time because this is during the off-season. If you aren’t able to travel to Portland, Maine during the month of January, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $484.

On average, the least expensive day to fly to Portland, Maine from Atlanta is on a Thursday. momondo users have found tickets for Thursday departures for as low as $519. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday is the most expensive day to depart from Atlanta because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $588.

In the evening is the cheapest time of day to fly from Atlanta to Portland, Maine when you can find flight prices for as low as $539. Flying to Portland, Maine in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $563. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Atlanta Hartsfield-Jackson to Portland for the best Atlanta Hartsfield-Jackson - Portland flight prices

You are more likely to see cheaper flights to Portland, Maine from Atlanta when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland, Maine for around $534 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland, Maine from Atlanta for as low as $414 on momondo.

There are 4 cabin classes available to choose from on Atlanta to Portland, Maine 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 49% on your flight if you consider stops on a Atlanta to Portland, Maine flight.

As of November 2026, prices for Atlanta to Portland, Maine flights are approximately 74% more expensive when compared to flights at the same time last year.

American Airlines, United Airlines, and Southwest are the most popular carriers operating from Atlanta Hartsfield-Jackson to Portland

Frontier, Delta and JetBlue are the top three most popular airlines that fly to Portland, Maine from Atlanta according to our data. Frontier is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Portland, Maine. Keep in mind that there are 6 different airlines that fly to Portland, Maine on a routine basis, so you have a few additional options to choose from.

Baltimore (BWI) was the most common stop: 75% of momondo users choosing 1-stop flights on this route connected there.

Flights via New York (JFK) offer the lowest average round-trip price of $244.

Flights connecting via Baltimore (BWI) have the shortest average one-way travel time: 4h 38m.

Baltimore (BWI) has the shortest average layover time for this route: 1h 33m.

3 flights are operational daily from Atlanta to Portland, Maine as of November 2026. The most popular departure time for this route is 8:00PM, with 66% of flights per day taking off in the evening.

23 flights are operational weekly from Atlanta to Portland, Maine as of November 2026. The most popular departure day for this route is Fri, with 43% of flights per week taking off on this day.