| Guardamar del Segura to Opole | 1,257.39 mi (2,023.57 km) |
| Guardamar del Segura to Orzesze | 1,266.25 mi (2,037.83 km) |
| Guardamar del Segura to Osowa | 1,442.45 mi (2,321.40 km) |
| Guardamar del Segura to Ostroda | 1,454.50 mi (2,340.79 km) |
| Guardamar del Segura to Ostroleka | 1,480.24 mi (2,382.21 km) |
| Guardamar del Segura to Ostrow Mazowiecka | 1,481.09 mi (2,383.59 km) |
| Guardamar del Segura to Ostrow Wielkopolski | 1,295.04 mi (2,084.16 km) |
| Guardamar del Segura to Ostrowiec Swietokrzyski | 1,393.49 mi (2,242.61 km) |
| Guardamar del Segura to Ostrzeszow | 1,288.90 mi (2,074.28 km) |
| Guardamar del Segura to Oswiecim | 1,279.51 mi (2,059.17 km) |
| Guardamar del Segura to Otwock | 1,432.54 mi (2,305.46 km) |
| Guardamar del Segura to Ozarow Mazowiecki | 1,420.13 mi (2,285.48 km) |
| Guardamar del Segura to Ozimek | 1,267.52 mi (2,039.88 km) |
| Guardamar del Segura to Ozorkow | 1,357.88 mi (2,185.30 km) |
| Guardamar del Segura to Pabianice | 1,348.26 mi (2,169.82 km) |
