| Huercal-Overa to Opole | 1,339.82 mi (2,156.23 km) |
| Huercal-Overa to Orzesze | 1,349.46 mi (2,171.74 km) |
| Huercal-Overa to Osowa | 1,521.17 mi (2,448.09 km) |
| Huercal-Overa to Ostroda | 1,534.85 mi (2,470.11 km) |
| Huercal-Overa to Ostroleka | 1,561.93 mi (2,513.68 km) |
| Huercal-Overa to Ostrow Mazowiecka | 1,563.15 mi (2,515.64 km) |
| Huercal-Overa to Ostrow Wielkopolski | 1,376.43 mi (2,215.16 km) |
| Huercal-Overa to Ostrowiec Swietokrzyski | 1,476.91 mi (2,376.86 km) |
| Huercal-Overa to Ostrzeszow | 1,370.59 mi (2,205.76 km) |
| Huercal-Overa to Oswiecim | 1,362.96 mi (2,193.48 km) |
| Huercal-Overa to Otwock | 1,514.97 mi (2,438.11 km) |
| Huercal-Overa to Ozarow Mazowiecki | 1,502.30 mi (2,417.72 km) |
| Huercal-Overa to Ozimek | 1,350.07 mi (2,172.73 km) |
| Huercal-Overa to Ozorkow | 1,439.66 mi (2,316.92 km) |
| Huercal-Overa to Pabianice | 1,430.39 mi (2,301.99 km) |
