| Seacroft to Orbetello | 976.70 mi (1,571.85 km) |
| Seacroft to Oria | 1,277.31 mi (2,055.64 km) |
| Seacroft to Oristano | 1,069.95 mi (1,721.92 km) |
| Seacroft to Orta Nova | 1,170.98 mi (1,884.50 km) |
| Seacroft to Orte | 1,008.15 mi (1,622.46 km) |
| Seacroft to Ortona | 1,074.14 mi (1,728.66 km) |
| Seacroft to Orvieto | 985.52 mi (1,586.04 km) |
| Seacroft to Orzinuovi | 771.95 mi (1,242.33 km) |
| Seacroft to Osimo | 983.80 mi (1,583.28 km) |
| Seacroft to Ospitaletto | 767.54 mi (1,235.23 km) |
| Seacroft to Ostuni | 1,262.96 mi (2,032.53 km) |
| Seacroft to Ottaviano | 1,160.81 mi (1,868.15 km) |
| Seacroft to Ovada | 779.70 mi (1,254.81 km) |
| Seacroft to Ozieri | 1,035.64 mi (1,666.70 km) |
| Seacroft to Paceco | 1,279.85 mi (2,059.72 km) |
