| Central Islip to Opole | 4,164.82 mi (6,702.63 km) |
| Central Islip to Orzesze | 4,213.75 mi (6,781.38 km) |
| Central Islip to Osowa | 4,060.50 mi (6,534.74 km) |
| Central Islip to Ostroda | 4,137.75 mi (6,659.06 km) |
| Central Islip to Ostroleka | 4,216.71 mi (6,786.13 km) |
| Central Islip to Ostrow Mazowiecka | 4,238.03 mi (6,820.45 km) |
| Central Islip to Ostrow Wielkopolski | 4,127.41 mi (6,642.43 km) |
| Central Islip to Ostrowiec Swietokrzyski | 4,286.21 mi (6,897.99 km) |
| Central Islip to Ostrzeszow | 4,139.58 mi (6,662.01 km) |
| Central Islip to Oswiecim | 4,235.70 mi (6,816.69 km) |
| Central Islip to Otwock | 4,239.21 mi (6,822.35 km) |
| Central Islip to Ozarow Mazowiecki | 4,218.66 mi (6,789.28 km) |
| Central Islip to Ozimek | 4,175.28 mi (6,719.46 km) |
| Central Islip to Ozorkow | 4,171.47 mi (6,713.33 km) |
| Central Islip to Pabianice | 4,186.00 mi (6,736.72 km) |
