| Sierre to Orthez | 450.20 mi (724.52 km) |
| Sierre to Orvault | 438.07 mi (705.00 km) |
| Sierre to Osny | 317.85 mi (511.53 km) |
| Sierre to Ostwald | 155.76 mi (250.68 km) |
| Sierre to Ouistreham | 415.87 mi (669.27 km) |
| Sierre to Oullins | 136.87 mi (220.27 km) |
| Sierre to Outreau | 407.81 mi (656.31 km) |
| Sierre to Oyonnax | 89.72 mi (144.39 km) |
| Sierre to Ozoir-la-Ferriere | 283.74 mi (456.63 km) |
| Sierre to Pace | 454.68 mi (731.73 km) |
| Sierre to Palaiseau | 297.77 mi (479.22 km) |
| Sierre to Pamiers | 364.47 mi (586.56 km) |
| Sierre to Panazol | 299.94 mi (482.70 km) |
| Sierre to Pantin | 298.80 mi (480.88 km) |
| Sierre to Paray-le-Monial | 163.06 mi (262.42 km) |
