| Knutsford to Orbetello | 976.28 mi (1,571.17 km) |
| Knutsford to Oria | 1,285.68 mi (2,069.11 km) |
| Knutsford to Oristano | 1,059.12 mi (1,704.50 km) |
| Knutsford to Orta Nova | 1,177.52 mi (1,895.03 km) |
| Knutsford to Orte | 1,010.37 mi (1,626.03 km) |
| Knutsford to Ortona | 1,080.24 mi (1,738.48 km) |
| Knutsford to Orvieto | 987.68 mi (1,589.52 km) |
| Knutsford to Orzinuovi | 775.67 mi (1,248.32 km) |
| Knutsford to Osimo | 990.58 mi (1,594.18 km) |
| Knutsford to Ospitaletto | 772.08 mi (1,242.54 km) |
| Knutsford to Ostuni | 1,271.66 mi (2,046.53 km) |
| Knutsford to Ottaviano | 1,164.15 mi (1,873.53 km) |
| Knutsford to Ovada | 777.94 mi (1,251.97 km) |
| Knutsford to Ozieri | 1,026.75 mi (1,652.39 km) |
| Knutsford to Paceco | 1,274.93 mi (2,051.80 km) |
