| Irlam to Octeville | 265.92 mi (427.95 km) |
| Irlam to Oignies | 308.79 mi (496.95 km) |
| Irlam to Oissel | 321.33 mi (517.13 km) |
| Irlam to Olivet | 429.41 mi (691.06 km) |
| Irlam to Ollioules | 805.92 mi (1,297.00 km) |
| Irlam to Olonne-sur-Mer | 478.22 mi (769.63 km) |
| Irlam to Oloron-Sainte-Marie | 713.09 mi (1,147.61 km) |
| Irlam to Onet Village | 666.98 mi (1,073.41 km) |
| Irlam to Onnaing | 332.13 mi (534.52 km) |
| Irlam to Orange | 721.52 mi (1,161.18 km) |
| Irlam to Orchies | 316.56 mi (509.46 km) |
| Irlam to Orleans | 427.14 mi (687.42 km) |
| Irlam to Orly | 386.01 mi (621.22 km) |
| Irlam to Ormesson-sur-Marne | 386.99 mi (622.80 km) |
| Irlam to Orsay | 384.03 mi (618.03 km) |
