| Blue Springs to Orbetello | 5,129.14 mi (8,254.56 km) |
| Blue Springs to Oria | 5,468.12 mi (8,800.09 km) |
| Blue Springs to Oristano | 5,131.43 mi (8,258.24 km) |
| Blue Springs to Orta Nova | 5,355.22 mi (8,618.39 km) |
| Blue Springs to Orte | 5,174.57 mi (8,327.67 km) |
| Blue Springs to Ortona | 5,258.06 mi (8,462.02 km) |
| Blue Springs to Orvieto | 5,152.41 mi (8,292.01 km) |
| Blue Springs to Orzinuovi | 4,952.59 mi (7,970.43 km) |
| Blue Springs to Osimo | 5,172.02 mi (8,323.57 km) |
| Blue Springs to Ospitaletto | 4,951.44 mi (7,968.57 km) |
| Blue Springs to Ostuni | 5,455.25 mi (8,779.38 km) |
| Blue Springs to Ottaviano | 5,328.86 mi (8,575.98 km) |
| Blue Springs to Ovada | 4,934.35 mi (7,941.06 km) |
| Blue Springs to Ozieri | 5,119.55 mi (8,239.11 km) |
| Blue Springs to Paceco | 5,380.14 mi (8,658.50 km) |
