| Preston to Opole | 895.74 mi (1,441.55 km) |
| Preston to Orzesze | 942.69 mi (1,517.11 km) |
| Preston to Osowa | 855.83 mi (1,377.32 km) |
| Preston to Ostroda | 922.54 mi (1,484.68 km) |
| Preston to Ostroleka | 995.60 mi (1,602.26 km) |
| Preston to Ostrow Mazowiecka | 1,013.28 mi (1,630.72 km) |
| Preston to Ostrow Wielkopolski | 868.00 mi (1,396.92 km) |
| Preston to Ostrowiec Swietokrzyski | 1,030.50 mi (1,658.42 km) |
| Preston to Ostrzeszow | 877.80 mi (1,412.69 km) |
| Preston to Oswiecim | 964.93 mi (1,552.91 km) |
| Preston to Otwock | 999.55 mi (1,608.63 km) |
| Preston to Ozarow Mazowiecki | 978.64 mi (1,574.97 km) |
| Preston to Ozimek | 906.96 mi (1,459.61 km) |
| Preston to Ozorkow | 921.49 mi (1,483.00 km) |
| Preston to Pabianice | 931.99 mi (1,499.89 km) |
