| Thornton Heath to Opole | 783.58 mi (1,261.04 km) |
| Thornton Heath to Orzesze | 826.17 mi (1,329.60 km) |
| Thornton Heath to Osowa | 799.22 mi (1,286.23 km) |
| Thornton Heath to Ostroda | 855.25 mi (1,376.39 km) |
| Thornton Heath to Ostroleka | 920.81 mi (1,481.90 km) |
| Thornton Heath to Ostrow Mazowiecka | 935.39 mi (1,505.37 km) |
| Thornton Heath to Ostrow Wielkopolski | 768.82 mi (1,237.30 km) |
| Thornton Heath to Ostrowiec Swietokrzyski | 929.08 mi (1,495.21 km) |
| Thornton Heath to Ostrzeszow | 775.60 mi (1,248.21 km) |
| Thornton Heath to Oswiecim | 848.30 mi (1,365.20 km) |
| Thornton Heath to Otwock | 912.19 mi (1,468.02 km) |
| Thornton Heath to Ozarow Mazowiecki | 891.88 mi (1,435.34 km) |
| Thornton Heath to Ozimek | 795.53 mi (1,280.29 km) |
| Thornton Heath to Ozorkow | 829.17 mi (1,334.42 km) |
| Thornton Heath to Pabianice | 835.60 mi (1,344.78 km) |
