| Adelphi to Octeville | 3,636.10 mi (5,851.74 km) |
| Adelphi to Oignies | 3,809.45 mi (6,130.71 km) |
| Adelphi to Oissel | 3,758.24 mi (6,048.30 km) |
| Adelphi to Olivet | 3,830.02 mi (6,163.83 km) |
| Adelphi to Ollioules | 4,139.72 mi (6,662.23 km) |
| Adelphi to Olonne-sur-Mer | 3,703.44 mi (5,960.11 km) |
| Adelphi to Oloron-Sainte-Marie | 3,844.35 mi (6,186.88 km) |
| Adelphi to Onet Village | 3,956.68 mi (6,367.66 km) |
| Adelphi to Onnaing | 3,836.28 mi (6,173.89 km) |
| Adelphi to Orange | 4,062.53 mi (6,538.01 km) |
| Adelphi to Orchies | 3,819.58 mi (6,147.02 km) |
| Adelphi to Orleans | 3,829.38 mi (6,162.79 km) |
| Adelphi to Orly | 3,828.17 mi (6,160.84 km) |
| Adelphi to Ormesson-sur-Marne | 3,833.24 mi (6,169.00 km) |
| Adelphi to Orsay | 3,820.66 mi (6,148.76 km) |
