| Somma Lombardo to Oerlinghausen | 434.14 mi (698.69 km) |
| Somma Lombardo to Oestrich-Winkel | 300.01 mi (482.82 km) |
| Somma Lombardo to Offenburg | 195.67 mi (314.89 km) |
| Somma Lombardo to Oftersheim | 254.82 mi (410.10 km) |
| Somma Lombardo to Ohrdruf | 367.53 mi (591.48 km) |
| Somma Lombardo to Ohringen | 245.84 mi (395.63 km) |
| Somma Lombardo to Olbernhau | 404.94 mi (651.70 km) |
| Somma Lombardo to Olching | 213.22 mi (343.14 km) |
| Somma Lombardo to Oldenburg | 515.94 mi (830.32 km) |
| Somma Lombardo to Oldenburg in Holstein | 603.13 mi (970.64 km) |
| Somma Lombardo to Olfen | 421.15 mi (677.78 km) |
| Somma Lombardo to Olpe | 370.64 mi (596.48 km) |
| Somma Lombardo to Olsberg | 391.66 mi (630.31 km) |
| Somma Lombardo to Oranienburg | 529.47 mi (852.10 km) |
| Somma Lombardo to Ortenberg | 323.25 mi (520.23 km) |
