| Illertissen to Octeville | 540.64 mi (870.08 km) |
| Illertissen to Oignies | 354.88 mi (571.12 km) |
| Illertissen to Oissel | 416.45 mi (670.21 km) |
| Illertissen to Olivet | 378.62 mi (609.32 km) |
| Illertissen to Ollioules | 405.92 mi (653.26 km) |
| Illertissen to Olonne-sur-Mer | 566.14 mi (911.11 km) |
| Illertissen to Oloron-Sainte-Marie | 620.79 mi (999.06 km) |
| Illertissen to Onet Village | 445.38 mi (716.77 km) |
| Illertissen to Onnaing | 328.28 mi (528.32 km) |
| Illertissen to Orange | 378.05 mi (608.42 km) |
| Illertissen to Orchies | 344.95 mi (555.14 km) |
| Illertissen to Orleans | 377.93 mi (608.21 km) |
| Illertissen to Orly | 353.95 mi (569.63 km) |
| Illertissen to Ormesson-sur-Marne | 347.51 mi (559.26 km) |
| Illertissen to Orsay | 363.15 mi (584.44 km) |
