| West Springfield to Oberkirch | 4,092.76 mi (6,586.66 km) |
| West Springfield to Obernburg am Main | 4,097.48 mi (6,594.25 km) |
| West Springfield to Obernkirchen | 4,026.94 mi (6,480.73 km) |
| West Springfield to Oberschleissheim | 4,244.63 mi (6,831.08 km) |
| West Springfield to Oberstdorf | 4,218.17 mi (6,788.48 km) |
| West Springfield to Obertraubling | 4,246.17 mi (6,833.55 km) |
| West Springfield to Obertshausen | 4,078.44 mi (6,563.61 km) |
| West Springfield to Oberursel | 4,064.17 mi (6,540.65 km) |
| West Springfield to Ochsenfurt | 4,140.41 mi (6,663.35 km) |
| West Springfield to Ochsenhausen | 4,183.76 mi (6,733.11 km) |
| West Springfield to Ochtrup | 3,953.66 mi (6,362.80 km) |
| West Springfield to Odenthal | 3,982.38 mi (6,409.02 km) |
| West Springfield to Oelde | 4,001.28 mi (6,439.44 km) |
| West Springfield to Oelsnitz | 4,200.50 mi (6,760.06 km) |
| West Springfield to Oer-Erkenschwick | 3,971.15 mi (6,390.95 km) |
