| Palmela to Octeville | 843.81 mi (1,357.99 km) |
| Palmela to Oignies | 1,007.08 mi (1,620.74 km) |
| Palmela to Oissel | 893.41 mi (1,437.81 km) |
| Palmela to Olivet | 840.02 mi (1,351.89 km) |
| Palmela to Ollioules | 831.48 mi (1,338.14 km) |
| Palmela to Olonne-sur-Mer | 658.76 mi (1,060.18 km) |
| Palmela to Oloron-Sainte-Marie | 538.01 mi (865.84 km) |
| Palmela to Onet Village | 716.32 mi (1,152.81 km) |
| Palmela to Onnaing | 1,020.17 mi (1,641.81 km) |
| Palmela to Orange | 807.11 mi (1,298.91 km) |
| Palmela to Orchies | 1,014.48 mi (1,632.64 km) |
| Palmela to Orleans | 842.21 mi (1,355.41 km) |
| Palmela to Orly | 899.73 mi (1,447.98 km) |
| Palmela to Ormesson-sur-Marne | 906.37 mi (1,458.65 km) |
| Palmela to Orsay | 891.07 mi (1,434.04 km) |
