| Nea Ionia to Orzesze | 872.66 mi (1,404.42 km) |
| Nea Ionia to Osowa | 1,159.66 mi (1,866.29 km) |
| Nea Ionia to Ostroda | 1,097.26 mi (1,765.87 km) |
| Nea Ionia to Ostroleka | 1,043.94 mi (1,680.06 km) |
| Nea Ionia to Ostrow Mazowiecka | 1,024.13 mi (1,648.18 km) |
| Nea Ionia to Ostrow Wielkopolski | 983.85 mi (1,583.35 km) |
| Nea Ionia to Ostrowiec Swietokrzyski | 898.68 mi (1,446.28 km) |
| Nea Ionia to Ostrzeszow | 967.01 mi (1,556.25 km) |
| Nea Ionia to Oswiecim | 858.99 mi (1,382.42 km) |
| Nea Ionia to Otwock | 980.43 mi (1,577.85 km) |
| Nea Ionia to Ozarow Mazowiecki | 990.26 mi (1,593.66 km) |
| Nea Ionia to Ozimek | 914.51 mi (1,471.75 km) |
| Nea Ionia to Ozorkow | 986.65 mi (1,587.85 km) |
| Nea Ionia to Pabianice | 964.39 mi (1,552.03 km) |
| Nea Ionia to Parczew | 940.65 mi (1,513.82 km) |
