| South Portland to Fisciano | 4,157.07 mi (6,690.16 km) |
| South Portland to Fiuggi | 4,049.20 mi (6,516.55 km) |
| South Portland to Fiume Veneto | 3,879.95 mi (6,244.18 km) |
| South Portland to Fiumefreddo di Sicilia | 4,290.88 mi (6,905.50 km) |
| South Portland to Fiumicino | 4,007.65 mi (6,449.69 km) |
| South Portland to Flero | 3,788.01 mi (6,096.21 km) |
| South Portland to Florence | 3,893.03 mi (6,265.23 km) |
| South Portland to Floridia | 4,317.34 mi (6,948.08 km) |
| South Portland to Foggia | 4,162.58 mi (6,699.03 km) |
| South Portland to Foiano della Chiana | 3,935.73 mi (6,333.94 km) |
| South Portland to Folignano | 4,029.50 mi (6,484.86 km) |
| South Portland to Foligno | 3,984.56 mi (6,412.52 km) |
| South Portland to Follonica | 3,901.93 mi (6,279.55 km) |
| South Portland to Fondi | 4,074.71 mi (6,557.62 km) |
| South Portland to Fontanafredda | 3,871.87 mi (6,231.17 km) |
