| Nailsea to Opole | 897.39 mi (1,444.21 km) |
| Nailsea to Orzesze | 940.25 mi (1,513.19 km) |
| Nailsea to Osowa | 904.43 mi (1,455.54 km) |
| Nailsea to Ostroda | 963.01 mi (1,549.82 km) |
| Nailsea to Ostroleka | 1,030.22 mi (1,657.98 km) |
| Nailsea to Ostrow Mazowiecka | 1,045.38 mi (1,682.38 km) |
| Nailsea to Ostrow Wielkopolski | 881.45 mi (1,418.56 km) |
| Nailsea to Ostrowiec Swietokrzyski | 1,042.22 mi (1,677.29 km) |
| Nailsea to Ostrzeszow | 888.57 mi (1,430.02 km) |
| Nailsea to Oswiecim | 962.40 mi (1,548.83 km) |
| Nailsea to Otwock | 1,023.61 mi (1,647.34 km) |
| Nailsea to Ozarow Mazowiecki | 1,003.17 mi (1,614.45 km) |
| Nailsea to Ozimek | 909.31 mi (1,463.40 km) |
| Nailsea to Ozorkow | 941.09 mi (1,514.55 km) |
| Nailsea to Pabianice | 948.05 mi (1,525.74 km) |
