| Colonia to Oschatz | 4,010.93 mi (6,454.97 km) |
| Colonia to Oschersleben | 3,917.72 mi (6,304.96 km) |
| Colonia to Osnabruck | 3,786.30 mi (6,093.46 km) |
| Colonia to Ostbevern | 3,784.91 mi (6,091.22 km) |
| Colonia to Osterburg | 3,915.07 mi (6,300.70 km) |
| Colonia to Ostercappeln | 3,791.63 mi (6,102.04 km) |
| Colonia to Osterhofen | 4,089.84 mi (6,581.96 km) |
| Colonia to Osterholz-Scharmbeck | 3,790.15 mi (6,099.66 km) |
| Colonia to Osternienburg | 3,953.66 mi (6,362.80 km) |
| Colonia to Osterode | 3,887.46 mi (6,256.26 km) |
| Colonia to Osterwieck | 3,898.60 mi (6,274.18 km) |
| Colonia to Ostfildern | 3,935.61 mi (6,333.75 km) |
| Colonia to Osthofen | 3,869.27 mi (6,226.99 km) |
| Colonia to Ostrhauderfehn | 3,747.49 mi (6,031.00 km) |
| Colonia to Ostringen | 3,899.07 mi (6,274.94 km) |
