| Iselin to Opole | 4,217.73 mi (6,787.78 km) |
| Iselin to Orzesze | 4,266.77 mi (6,866.70 km) |
| Iselin to Osowa | 4,111.21 mi (6,616.35 km) |
| Iselin to Ostroda | 4,188.61 mi (6,740.91 km) |
| Iselin to Ostroleka | 4,267.61 mi (6,868.06 km) |
| Iselin to Ostrow Mazowiecka | 4,289.02 mi (6,902.51 km) |
| Iselin to Ostrow Wielkopolski | 4,179.83 mi (6,726.78 km) |
| Iselin to Ostrowiec Swietokrzyski | 4,338.30 mi (6,981.83 km) |
| Iselin to Ostrzeszow | 4,192.09 mi (6,746.52 km) |
| Iselin to Oswiecim | 4,288.68 mi (6,901.96 km) |
| Iselin to Otwock | 4,290.70 mi (6,905.22 km) |
| Iselin to Ozarow Mazowiecki | 4,270.19 mi (6,872.21 km) |
| Iselin to Ozimek | 4,228.13 mi (6,804.51 km) |
| Iselin to Ozorkow | 4,223.43 mi (6,796.96 km) |
| Iselin to Pabianice | 4,238.12 mi (6,820.59 km) |
