| Marchtrenk to Oignies | 524.13 mi (843.51 km) |
| Marchtrenk to Oissel | 597.45 mi (961.50 km) |
| Marchtrenk to Olivet | 564.05 mi (907.76 km) |
| Marchtrenk to Ollioules | 529.63 mi (852.35 km) |
| Marchtrenk to Olonne-sur-Mer | 750.69 mi (1,208.13 km) |
| Marchtrenk to Oloron-Sainte-Marie | 788.02 mi (1,268.20 km) |
| Marchtrenk to Onet Village | 609.39 mi (980.71 km) |
| Marchtrenk to Onnaing | 496.95 mi (799.76 km) |
| Marchtrenk to Orange | 525.31 mi (845.40 km) |
| Marchtrenk to Orchies | 513.50 mi (826.40 km) |
| Marchtrenk to Orleans | 563.36 mi (906.63 km) |
| Marchtrenk to Orly | 537.63 mi (865.24 km) |
| Marchtrenk to Ormesson-sur-Marne | 531.00 mi (854.56 km) |
| Marchtrenk to Orsay | 547.02 mi (880.35 km) |
| Marchtrenk to Orthez | 784.88 mi (1,263.14 km) |
