| Widnau to Oerlinghausen | 318.49 mi (512.55 km) |
| Widnau to Oestrich-Winkel | 194.48 mi (312.98 km) |
| Widnau to Offenburg | 107.83 mi (173.53 km) |
| Widnau to Oftersheim | 144.42 mi (232.43 km) |
| Widnau to Ohrdruf | 242.03 mi (389.52 km) |
| Widnau to Ohringen | 124.54 mi (200.43 km) |
| Widnau to Olbernhau | 281.07 mi (452.34 km) |
| Widnau to Olching | 95.71 mi (154.04 km) |
| Widnau to Oldenburg | 401.78 mi (646.61 km) |
| Widnau to Oldenburg in Holstein | 479.85 mi (772.25 km) |
| Widnau to Olfen | 314.82 mi (506.66 km) |
| Widnau to Olpe | 262.77 mi (422.88 km) |
| Widnau to Olsberg | 277.79 mi (447.06 km) |
| Widnau to Oranienburg | 402.88 mi (648.37 km) |
| Widnau to Ortenberg | 205.93 mi (331.41 km) |
