| Blue Springs to Oberkirch | 4,753.70 mi (7,650.34 km) |
| Blue Springs to Obernburg am Main | 4,739.97 mi (7,628.24 km) |
| Blue Springs to Obernkirchen | 4,642.19 mi (7,470.88 km) |
| Blue Springs to Oberschleissheim | 4,893.68 mi (7,875.61 km) |
| Blue Springs to Oberstdorf | 4,881.51 mi (7,856.04 km) |
| Blue Springs to Obertraubling | 4,885.06 mi (7,861.75 km) |
| Blue Springs to Obertshausen | 4,719.71 mi (7,595.64 km) |
| Blue Springs to Oberursel | 4,704.99 mi (7,571.95 km) |
| Blue Springs to Ochsenfurt | 4,781.09 mi (7,694.43 km) |
| Blue Springs to Ochsenhausen | 4,841.70 mi (7,791.97 km) |
| Blue Springs to Ochtrup | 4,577.19 mi (7,366.27 km) |
| Blue Springs to Odenthal | 4,619.72 mi (7,434.73 km) |
| Blue Springs to Oelde | 4,625.40 mi (7,443.86 km) |
| Blue Springs to Oelsnitz | 4,823.82 mi (7,763.20 km) |
| Blue Springs to Oer-Erkenschwick | 4,600.99 mi (7,404.58 km) |
