| Whitburn to Orbetello | 1,140.88 mi (1,836.07 km) |
| Whitburn to Oria | 1,434.46 mi (2,308.54 km) |
| Whitburn to Oristano | 1,236.39 mi (1,989.78 km) |
| Whitburn to Orta Nova | 1,330.06 mi (2,140.52 km) |
| Whitburn to Orte | 1,170.80 mi (1,884.22 km) |
| Whitburn to Ortona | 1,233.78 mi (1,985.58 km) |
| Whitburn to Orvieto | 1,148.24 mi (1,847.91 km) |
| Whitburn to Orzinuovi | 934.05 mi (1,503.21 km) |
| Whitburn to Osimo | 1,143.05 mi (1,839.56 km) |
| Whitburn to Ospitaletto | 929.10 mi (1,495.24 km) |
| Whitburn to Ostuni | 1,419.79 mi (2,284.93 km) |
| Whitburn to Ottaviano | 1,322.50 mi (2,128.35 km) |
| Whitburn to Ovada | 944.70 mi (1,520.34 km) |
| Whitburn to Ozieri | 1,202.08 mi (1,934.57 km) |
| Whitburn to Paceco | 1,445.60 mi (2,326.47 km) |
