| Widnes to Oberkirch | 575.95 mi (926.90 km) |
| Widnes to Obernburg am Main | 563.63 mi (907.08 km) |
| Widnes to Obernkirchen | 499.85 mi (804.42 km) |
| Widnes to Oberschleissheim | 715.35 mi (1,151.24 km) |
| Widnes to Oberstdorf | 703.65 mi (1,132.42 km) |
| Widnes to Obertraubling | 711.49 mi (1,145.03 km) |
| Widnes to Obertshausen | 543.98 mi (875.45 km) |
| Widnes to Oberursel | 529.48 mi (852.11 km) |
| Widnes to Ochsenfurt | 605.97 mi (975.22 km) |
| Widnes to Ochsenhausen | 662.71 mi (1,066.53 km) |
| Widnes to Ochtrup | 421.75 mi (678.75 km) |
| Widnes to Odenthal | 446.45 mi (718.50 km) |
| Widnes to Oelde | 468.09 mi (753.32 km) |
| Widnes to Oelsnitz | 665.53 mi (1,071.06 km) |
| Widnes to Oer-Erkenschwick | 435.80 mi (701.35 km) |
