| Islington to Octeville | 148.69 mi (239.30 km) |
| Islington to Oignies | 153.72 mi (247.39 km) |
| Islington to Oissel | 160.96 mi (259.04 km) |
| Islington to Olivet | 269.54 mi (433.78 km) |
| Islington to Ollioules | 643.54 mi (1,035.67 km) |
| Islington to Olonne-sur-Mer | 354.16 mi (569.96 km) |
| Islington to Oloron-Sainte-Marie | 577.39 mi (929.22 km) |
| Islington to Onet Village | 511.34 mi (822.92 km) |
| Islington to Onnaing | 179.73 mi (289.25 km) |
| Islington to Orange | 559.79 mi (900.89 km) |
| Islington to Orchies | 163.16 mi (262.58 km) |
| Islington to Orleans | 267.14 mi (429.92 km) |
| Islington to Orly | 222.77 mi (358.51 km) |
| Islington to Ormesson-sur-Marne | 223.53 mi (359.74 km) |
| Islington to Orsay | 221.24 mi (356.05 km) |
