| Basingstoke to Opole | 826.37 mi (1,329.92 km) |
| Basingstoke to Orzesze | 868.74 mi (1,398.10 km) |
| Basingstoke to Osowa | 841.79 mi (1,354.73 km) |
| Basingstoke to Ostroda | 898.23 mi (1,445.56 km) |
| Basingstoke to Ostroleka | 963.98 mi (1,551.37 km) |
| Basingstoke to Ostrow Mazowiecka | 978.61 mi (1,574.91 km) |
| Basingstoke to Ostrow Wielkopolski | 812.00 mi (1,306.78 km) |
| Basingstoke to Ostrowiec Swietokrzyski | 972.15 mi (1,564.52 km) |
| Basingstoke to Ostrzeszow | 818.72 mi (1,317.59 km) |
| Basingstoke to Oswiecim | 890.84 mi (1,433.66 km) |
| Basingstoke to Otwock | 955.44 mi (1,537.64 km) |
| Basingstoke to Ozarow Mazowiecki | 935.14 mi (1,504.96 km) |
| Basingstoke to Ozimek | 838.35 mi (1,349.20 km) |
| Basingstoke to Ozorkow | 872.41 mi (1,404.01 km) |
| Basingstoke to Pabianice | 878.80 mi (1,414.29 km) |
