| Sebastian to Orbetello | 5,031.97 mi (8,098.17 km) |
| Sebastian to Oria | 5,389.94 mi (8,674.28 km) |
| Sebastian to Oristano | 4,970.64 mi (7,999.47 km) |
| Sebastian to Orta Nova | 5,274.62 mi (8,488.68 km) |
| Sebastian to Orte | 5,086.66 mi (8,186.19 km) |
| Sebastian to Ortona | 5,183.90 mi (8,342.68 km) |
| Sebastian to Orvieto | 5,066.82 mi (8,154.25 km) |
| Sebastian to Orzinuovi | 4,898.03 mi (7,882.61 km) |
| Sebastian to Osimo | 5,109.92 mi (8,223.62 km) |
| Sebastian to Ospitaletto | 4,900.61 mi (7,886.76 km) |
| Sebastian to Ostuni | 5,380.43 mi (8,658.96 km) |
| Sebastian to Ottaviano | 5,230.28 mi (8,417.32 km) |
| Sebastian to Ovada | 4,857.30 mi (7,817.07 km) |
| Sebastian to Ozieri | 4,973.63 mi (8,004.29 km) |
| Sebastian to Paceco | 5,218.19 mi (8,397.87 km) |
