The Portland Municipal Airport is a city owned, public use airport located three nautical miles northeast of the central business district of Portland, Tennessee.

FAA INFORMATION EFFECTIVE 21 JUNE 2018
Location
| FAA Identifier: | 1M5 |
| Lat/Long: | 36-35-34.3000N / 086-28-36.9000W 36-35.571667N / 086-28.615000W 36.5928611 / -86.4769167 (estimated) |
| Elevation: | 817.2 ft. / 249.1 m (surveyed) |
| Variation: | 02W (2000) |
| From city: | 3 miles NE of PORTLAND, TN |
| Time zone: | UTC -5 (UTC -6 during Standard Time) |
| Zip code: | 37148 |