| Wells to Orbetello | 889.69 mi (1,431.83 km) |
| Wells to Oria | 1,217.80 mi (1,959.85 km) |
| Wells to Oristano | 949.23 mi (1,527.64 km) |
| Wells to Orta Nova | 1,105.86 mi (1,779.71 km) |
| Wells to Orte | 929.69 mi (1,496.19 km) |
| Wells to Ortona | 1,008.40 mi (1,622.86 km) |
| Wells to Orvieto | 907.14 mi (1,459.90 km) |
| Wells to Orzinuovi | 702.27 mi (1,130.19 km) |
| Wells to Osimo | 921.47 mi (1,482.96 km) |
| Wells to Ospitaletto | 700.80 mi (1,127.84 km) |
| Wells to Ostuni | 1,204.72 mi (1,938.81 km) |
| Wells to Ottaviano | 1,084.71 mi (1,745.67 km) |
| Wells to Ovada | 691.01 mi (1,112.08 km) |
| Wells to Ozieri | 921.01 mi (1,482.23 km) |
| Wells to Paceco | 1,175.84 mi (1,892.34 km) |
