| Spalding to Orbetello | 887.28 mi (1,427.94 km) |
| Spalding to Oria | 1,190.56 mi (1,916.03 km) |
| Spalding to Oristano | 981.11 mi (1,578.94 km) |
| Spalding to Orta Nova | 1,083.42 mi (1,743.60 km) |
| Spalding to Orte | 919.21 mi (1,479.33 km) |
| Spalding to Ortona | 986.40 mi (1,587.45 km) |
| Spalding to Orvieto | 896.57 mi (1,442.88 km) |
| Spalding to Orzinuovi | 683.31 mi (1,099.69 km) |
| Spalding to Osimo | 896.29 mi (1,442.44 km) |
| Spalding to Ospitaletto | 679.14 mi (1,092.98 km) |
| Spalding to Ostuni | 1,176.36 mi (1,893.16 km) |
| Spalding to Ottaviano | 1,072.19 mi (1,725.53 km) |
| Spalding to Ovada | 690.11 mi (1,110.63 km) |
| Spalding to Ozieri | 946.39 mi (1,523.07 km) |
| Spalding to Paceco | 1,190.20 mi (1,915.44 km) |
