| Portsmouth to Forli | 761.06 mi (1,224.80 km) |
| Portsmouth to Forlimpopoli | 766.44 mi (1,233.46 km) |
| Portsmouth to Formello | 878.11 mi (1,413.18 km) |
| Portsmouth to Formia | 962.04 mi (1,548.26 km) |
| Portsmouth to Formigine | 702.67 mi (1,130.84 km) |
| Portsmouth to Fossano | 595.18 mi (957.86 km) |
| Portsmouth to Fossombrone | 814.03 mi (1,310.06 km) |
| Portsmouth to Francavilla al Mare | 929.25 mi (1,495.48 km) |
| Portsmouth to Francavilla Fontana | 1,141.78 mi (1,837.51 km) |
| Portsmouth to Francofonte | 1,223.05 mi (1,968.31 km) |
| Portsmouth to Frascati | 901.54 mi (1,450.89 km) |
| Portsmouth to Frattamaggiore | 1,002.36 mi (1,613.15 km) |
| Portsmouth to Frattaminore | 1,000.93 mi (1,610.84 km) |
| Portsmouth to Frosinone | 933.99 mi (1,503.11 km) |
| Portsmouth to Fucecchio | 739.60 mi (1,190.27 km) |
