| Welling to Orthez | 552.29 mi (888.82 km) |
| Welling to Orvault | 299.63 mi (482.21 km) |
| Welling to Osny | 186.91 mi (300.81 km) |
| Welling to Ostwald | 392.65 mi (631.91 km) |
| Welling to Ouistreham | 151.51 mi (243.83 km) |
| Welling to Oullins | 451.05 mi (725.89 km) |
| Welling to Outreau | 82.91 mi (133.44 km) |
| Welling to Oyonnax | 438.82 mi (706.22 km) |
| Welling to Ozoir-la-Ferriere | 217.43 mi (349.92 km) |
| Welling to Pace | 243.72 mi (392.23 km) |
| Welling to Palaiseau | 211.96 mi (341.11 km) |
| Welling to Pamiers | 580.69 mi (934.53 km) |
| Welling to Panazol | 392.17 mi (631.14 km) |
| Welling to Pantin | 204.03 mi (328.36 km) |
| Welling to Paray-le-Monial | 390.80 mi (628.94 km) |
