| Illkirch-Graffenstaden to Oria | 737.94 mi (1,187.60 km) |
| Illkirch-Graffenstaden to Oristano | 597.42 mi (961.46 km) |
| Illkirch-Graffenstaden to Orta Nova | 631.91 mi (1,016.95 km) |
| Illkirch-Graffenstaden to Orte | 476.17 mi (766.32 km) |
| Illkirch-Graffenstaden to Ortona | 535.47 mi (861.75 km) |
| Illkirch-Graffenstaden to Orvieto | 453.96 mi (730.57 km) |
| Illkirch-Graffenstaden to Orzinuovi | 240.10 mi (386.40 km) |
| Illkirch-Graffenstaden to Osimo | 444.80 mi (715.83 km) |
| Illkirch-Graffenstaden to Ospitaletto | 233.47 mi (375.73 km) |
| Illkirch-Graffenstaden to Ostuni | 723.66 mi (1,164.62 km) |
| Illkirch-Graffenstaden to Ottaviano | 625.33 mi (1,006.37 km) |
| Illkirch-Graffenstaden to Ovada | 272.40 mi (438.38 km) |
| Illkirch-Graffenstaden to Ozieri | 552.55 mi (889.25 km) |
| Illkirch-Graffenstaden to Paceco | 767.76 mi (1,235.59 km) |
| Illkirch-Graffenstaden to Pachino | 897.29 mi (1,444.05 km) |
