| Amposta to Opole | 1,079.16 mi (1,736.73 km) |
| Amposta to Orzesze | 1,091.33 mi (1,756.33 km) |
| Amposta to Osowa | 1,255.13 mi (2,019.93 km) |
| Amposta to Ostroda | 1,270.15 mi (2,044.10 km) |
| Amposta to Ostroleka | 1,299.26 mi (2,090.96 km) |
| Amposta to Ostrow Mazowiecka | 1,301.27 mi (2,094.19 km) |
| Amposta to Ostrow Wielkopolski | 1,113.39 mi (1,791.82 km) |
| Amposta to Ostrowiec Swietokrzyski | 1,219.40 mi (1,962.44 km) |
| Amposta to Ostrzeszow | 1,108.13 mi (1,783.36 km) |
| Amposta to Oswiecim | 1,105.82 mi (1,779.65 km) |
| Amposta to Otwock | 1,254.07 mi (2,018.23 km) |
| Amposta to Ozarow Mazowiecki | 1,240.75 mi (1,996.80 km) |
| Amposta to Ozimek | 1,089.71 mi (1,753.73 km) |
| Amposta to Ozorkow | 1,177.30 mi (1,894.69 km) |
| Amposta to Pabianice | 1,168.82 mi (1,881.03 km) |
