Cheap flights from Tennessee to Portland from $133

The cheapest month to fly to Portland, Maine from Tennessee is in January. Flight prices, which tend to average around $323, 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 $326.

On average, the least expensive day to fly to Portland, Maine from Tennessee is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $464. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Tennessee because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $836.

In the morning is the cheapest time of day to fly from Tennessee to Portland, Maine when you can find flight prices for as low as $549. Flying to Portland, Maine in the morning is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $1,040. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Nashville Intl to Portland for the best Tennessee - Portland flight prices

You are more likely to see cheaper flights to Portland, Maine from Tennessee when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland, Maine for around $374 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland, Maine from Tennessee for as low as $260 on momondo.

There is only 1 cabin class available to choose from on Tennessee to Portland, Maine flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Delta, Southwest, and United Airlines are the most popular carriers operating from Tennessee to Portland

Delta, JetBlue and American Airlines are the top three most popular airlines that fly to Portland, Maine from Tennessee according to our data. Delta is the first choice among our users, with 32% 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.

As of September 2026, there are 3 flights per week flying from Tennessee to Portland, Maine. The most common day of the week flights depart is Mon, with 33% of flights taking off on this day.

The flight from Tennessee to Portland, Maine depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Knoxville (a popular airport in Tennessee) to Boston (the most popular airport in Portland, Maine), then the flight time is 2h 09m on average. If you fly from Nashville (another popular airport in Tennessee) to Boston, then the average flight time is 2h 25m.