| Langley Park to Forli | 4,378.01 mi (7,045.73 km) |
| Langley Park to Forlimpopoli | 4,383.30 mi (7,054.25 km) |
| Langley Park to Formello | 4,467.89 mi (7,190.37 km) |
| Langley Park to Formia | 4,550.81 mi (7,323.82 km) |
| Langley Park to Formigine | 4,317.31 mi (6,948.03 km) |
| Langley Park to Fossano | 4,180.17 mi (6,727.33 km) |
| Langley Park to Fossombrone | 4,429.43 mi (7,128.49 km) |
| Langley Park to Francavilla al Mare | 4,539.20 mi (7,305.14 km) |
| Langley Park to Francavilla Fontana | 4,752.49 mi (7,648.39 km) |
| Langley Park to Francofonte | 4,758.13 mi (7,657.46 km) |
| Langley Park to Frascati | 4,489.82 mi (7,225.68 km) |
| Langley Park to Frattamaggiore | 4,592.44 mi (7,390.83 km) |
| Langley Park to Frattaminore | 4,591.10 mi (7,388.66 km) |
| Langley Park to Frosinone | 4,525.80 mi (7,283.58 km) |
| Langley Park to Fucecchio | 4,340.82 mi (6,985.88 km) |
