| Spanish Springs to Orbetello | 5,985.53 mi (9,632.78 km) |
| Spanish Springs to Oria | 6,280.89 mi (10,108.11 km) |
| Spanish Springs to Oristano | 6,045.33 mi (9,729.02 km) |
| Spanish Springs to Orta Nova | 6,178.93 mi (9,944.03 km) |
| Spanish Springs to Orte | 6,018.92 mi (9,686.51 km) |
| Spanish Springs to Ortona | 6,083.06 mi (9,789.73 km) |
| Spanish Springs to Orvieto | 5,996.27 mi (9,650.06 km) |
| Spanish Springs to Orzinuovi | 5,782.80 mi (9,306.52 km) |
| Spanish Springs to Osimo | 5,992.20 mi (9,643.51 km) |
| Spanish Springs to Ospitaletto | 5,778.23 mi (9,299.17 km) |
| Spanish Springs to Ostuni | 6,265.77 mi (10,083.78 km) |
| Spanish Springs to Ottaviano | 6,171.63 mi (9,932.27 km) |
| Spanish Springs to Ovada | 5,786.91 mi (9,313.14 km) |
| Spanish Springs to Ozieri | 6,021.02 mi (9,689.89 km) |
| Spanish Springs to Paceco | 6,277.78 mi (10,103.11 km) |
