| Widnes to Orbetello | 989.73 mi (1,592.82 km) |
| Widnes to Oria | 1,300.14 mi (2,092.38 km) |
| Widnes to Oristano | 1,070.81 mi (1,723.31 km) |
| Widnes to Orta Nova | 1,191.80 mi (1,918.01 km) |
| Widnes to Orte | 1,024.17 mi (1,648.23 km) |
| Widnes to Ortona | 1,094.49 mi (1,761.41 km) |
| Widnes to Orvieto | 1,001.48 mi (1,611.73 km) |
| Widnes to Orzinuovi | 789.71 mi (1,270.92 km) |
| Widnes to Osimo | 1,004.91 mi (1,617.24 km) |
| Widnes to Ospitaletto | 786.21 mi (1,265.29 km) |
| Widnes to Ostuni | 1,286.15 mi (2,069.85 km) |
| Widnes to Ottaviano | 1,178.07 mi (1,895.92 km) |
| Widnes to Ovada | 791.26 mi (1,273.40 km) |
| Widnes to Ozieri | 1,038.82 mi (1,671.81 km) |
| Widnes to Paceco | 1,287.64 mi (2,072.25 km) |
