| West Springfield to Orbetello | 4,422.29 mi (7,116.99 km) |
| West Springfield to Oria | 4,775.27 mi (7,685.05 km) |
| West Springfield to Oristano | 4,391.00 mi (7,066.63 km) |
| West Springfield to Orta Nova | 4,659.87 mi (7,499.34 km) |
| West Springfield to Orte | 4,473.29 mi (7,199.07 km) |
| West Springfield to Ortona | 4,565.30 mi (7,347.14 km) |
| West Springfield to Orvieto | 4,452.18 mi (7,165.09 km) |
| West Springfield to Orzinuovi | 4,267.69 mi (6,868.19 km) |
| West Springfield to Osimo | 4,485.16 mi (7,218.18 km) |
| West Springfield to Ospitaletto | 4,268.66 mi (6,869.75 km) |
| West Springfield to Ostuni | 4,764.14 mi (7,667.15 km) |
| West Springfield to Ottaviano | 4,623.33 mi (7,440.53 km) |
| West Springfield to Ovada | 4,236.53 mi (6,818.04 km) |
| West Springfield to Ozieri | 4,386.63 mi (7,059.60 km) |
| West Springfield to Paceco | 4,641.70 mi (7,470.10 km) |
