| San Giovanni Rotondo to Octeville | 998.28 mi (1,606.58 km) |
| San Giovanni Rotondo to Oignies | 857.88 mi (1,380.63 km) |
| San Giovanni Rotondo to Oissel | 881.33 mi (1,418.37 km) |
| San Giovanni Rotondo to Olivet | 799.19 mi (1,286.18 km) |
| San Giovanni Rotondo to Ollioules | 513.66 mi (826.65 km) |
| San Giovanni Rotondo to Olonne-sur-Mer | 927.96 mi (1,493.41 km) |
| San Giovanni Rotondo to Oloron-Sainte-Marie | 838.09 mi (1,348.77 km) |
| San Giovanni Rotondo to Onet Village | 687.84 mi (1,106.97 km) |
| San Giovanni Rotondo to Onnaing | 834.04 mi (1,342.26 km) |
| San Giovanni Rotondo to Orange | 577.30 mi (929.08 km) |
| San Giovanni Rotondo to Orchies | 849.73 mi (1,367.51 km) |
| San Giovanni Rotondo to Orleans | 800.07 mi (1,287.58 km) |
| San Giovanni Rotondo to Orly | 809.48 mi (1,302.74 km) |
| San Giovanni Rotondo to Ormesson-sur-Marne | 805.42 mi (1,296.20 km) |
| San Giovanni Rotondo to Orsay | 815.79 mi (1,312.89 km) |
