| Reus to Octeville | 600.28 mi (966.06 km) |
| Reus to Oignies | 649.87 mi (1,045.86 km) |
| Reus to Oissel | 565.67 mi (910.35 km) |
| Reus to Olivet | 465.18 mi (748.63 km) |
| Reus to Ollioules | 278.71 mi (448.55 km) |
| Reus to Olonne-sur-Mer | 398.49 mi (641.31 km) |
| Reus to Oloron-Sainte-Marie | 166.03 mi (267.20 km) |
| Reus to Onet Village | 234.27 mi (377.02 km) |
| Reus to Onnaing | 649.01 mi (1,044.49 km) |
| Reus to Orange | 278.99 mi (448.99 km) |
| Reus to Orchies | 652.02 mi (1,049.33 km) |
| Reus to Orleans | 467.87 mi (752.96 km) |
| Reus to Orly | 528.07 mi (849.85 km) |
| Reus to Ormesson-sur-Marne | 531.83 mi (855.89 km) |
| Reus to Orsay | 523.83 mi (843.03 km) |
