| Eiras to Opole | 1,455.18 mi (2,341.89 km) |
| Eiras to Orzesze | 1,478.14 mi (2,378.83 km) |
| Eiras to Osowa | 1,579.24 mi (2,541.54 km) |
| Eiras to Ostroda | 1,612.44 mi (2,594.97 km) |
| Eiras to Ostroleka | 1,657.30 mi (2,667.17 km) |
| Eiras to Ostrow Mazowiecka | 1,664.16 mi (2,678.21 km) |
| Eiras to Ostrow Wielkopolski | 1,474.44 mi (2,372.89 km) |
| Eiras to Ostrowiec Swietokrzyski | 1,605.05 mi (2,583.08 km) |
| Eiras to Ostrzeszow | 1,473.20 mi (2,370.88 km) |
| Eiras to Oswiecim | 1,495.93 mi (2,407.47 km) |
| Eiras to Otwock | 1,623.67 mi (2,613.04 km) |
| Eiras to Ozarow Mazowiecki | 1,607.20 mi (2,586.53 km) |
| Eiras to Ozimek | 1,466.89 mi (2,360.74 km) |
| Eiras to Ozorkow | 1,540.79 mi (2,479.66 km) |
| Eiras to Pabianice | 1,537.21 mi (2,473.90 km) |
