| Wels to Oignies | 521.19 mi (838.77 km) |
| Wels to Oissel | 593.86 mi (955.72 km) |
| Wels to Olivet | 559.85 mi (900.99 km) |
| Wels to Ollioules | 524.44 mi (844.01 km) |
| Wels to Olonne-sur-Mer | 746.23 mi (1,200.95 km) |
| Wels to Oloron-Sainte-Marie | 782.96 mi (1,260.06 km) |
| Wels to Onet Village | 604.31 mi (972.54 km) |
| Wels to Onnaing | 494.01 mi (795.03 km) |
| Wels to Orange | 520.13 mi (837.07 km) |
| Wels to Orchies | 510.58 mi (821.70 km) |
| Wels to Orleans | 559.17 mi (899.89 km) |
| Wels to Orly | 533.78 mi (859.04 km) |
| Wels to Ormesson-sur-Marne | 527.17 mi (848.40 km) |
| Wels to Orsay | 543.15 mi (874.12 km) |
| Wels to Orthez | 779.85 mi (1,255.05 km) |
