| Southwick to Opole | 792.47 mi (1,275.36 km) |
| Southwick to Orzesze | 833.71 mi (1,341.72 km) |
| Southwick to Osowa | 820.04 mi (1,319.73 km) |
| Southwick to Ostroda | 873.75 mi (1,406.16 km) |
| Southwick to Ostroleka | 937.50 mi (1,508.76 km) |
| Southwick to Ostrow Mazowiecka | 951.38 mi (1,531.10 km) |
| Southwick to Ostrow Wielkopolski | 780.98 mi (1,256.87 km) |
| Southwick to Ostrowiec Swietokrzyski | 939.87 mi (1,512.58 km) |
| Southwick to Ostrzeszow | 787.01 mi (1,266.57 km) |
| Southwick to Oswiecim | 855.68 mi (1,377.09 km) |
| Southwick to Otwock | 926.26 mi (1,490.67 km) |
| Southwick to Ozarow Mazowiecki | 906.18 mi (1,458.36 km) |
| Southwick to Ozimek | 804.55 mi (1,294.79 km) |
| Southwick to Ozorkow | 842.56 mi (1,355.97 km) |
| Southwick to Pabianice | 848.03 mi (1,364.78 km) |
