| Serris to Oestrich-Winkel | 247.21 mi (397.84 km) |
| Serris to Offenburg | 236.39 mi (380.44 km) |
| Serris to Oftersheim | 264.57 mi (425.79 km) |
| Serris to Ohrdruf | 379.15 mi (610.18 km) |
| Serris to Ohringen | 304.99 mi (490.83 km) |
| Serris to Olbernhau | 486.61 mi (783.12 km) |
| Serris to Olching | 392.75 mi (632.07 km) |
| Serris to Oldenburg | 378.53 mi (609.19 km) |
| Serris to Oldenburg in Holstein | 511.56 mi (823.28 km) |
| Serris to Olfen | 283.17 mi (455.73 km) |
| Serris to Olpe | 269.46 mi (433.65 km) |
| Serris to Olsberg | 305.53 mi (491.70 km) |
| Serris to Oranienburg | 529.13 mi (851.55 km) |
| Serris to Ortenberg | 299.10 mi (481.35 km) |
| Serris to Oschatz | 487.28 mi (784.20 km) |
