| Celtik to Oerlinghausen | 1,422.41 mi (2,289.15 km) |
| Celtik to Oestrich-Winkel | 1,386.69 mi (2,231.66 km) |
| Celtik to Offenburg | 1,349.73 mi (2,172.19 km) |
| Celtik to Oftersheim | 1,345.29 mi (2,165.03 km) |
| Celtik to Ohrdruf | 1,305.89 mi (2,101.62 km) |
| Celtik to Ohringen | 1,302.79 mi (2,096.63 km) |
| Celtik to Olbernhau | 1,204.12 mi (1,937.84 km) |
| Celtik to Olching | 1,198.85 mi (1,929.36 km) |
| Celtik to Oldenburg | 1,480.37 mi (2,382.43 km) |
| Celtik to Oldenburg in Holstein | 1,437.19 mi (2,312.93 km) |
| Celtik to Olfen | 1,462.31 mi (2,353.35 km) |
| Celtik to Olpe | 1,423.20 mi (2,290.41 km) |
| Celtik to Olsberg | 1,408.67 mi (2,267.03 km) |
| Celtik to Oranienburg | 1,294.80 mi (2,083.77 km) |
| Celtik to Ortenberg | 1,354.97 mi (2,180.62 km) |
