| Plonsk to Olivenza | 1,623.80 mi (2,613.25 km) |
| Plonsk to Olot | 1,099.84 mi (1,770.02 km) |
| Plonsk to Onate | 1,240.14 mi (1,995.81 km) |
| Plonsk to Onda | 1,309.74 mi (2,107.82 km) |
| Plonsk to Onteniente | 1,381.66 mi (2,223.57 km) |
| Plonsk to Orihuela | 1,432.78 mi (2,305.83 km) |
| Plonsk to Osuna | 1,623.45 mi (2,612.70 km) |
| Plonsk to Ourense | 1,484.93 mi (2,389.76 km) |
| Plonsk to Oviedo | 1,360.80 mi (2,190.00 km) |
| Plonsk to Paiporta | 1,343.07 mi (2,161.47 km) |
| Plonsk to Pajara | 2,428.45 mi (3,908.22 km) |
| Plonsk to Palafolls | 1,117.14 mi (1,797.86 km) |
| Plonsk to Palafrugell | 1,090.23 mi (1,754.55 km) |
| Plonsk to Palamos | 1,095.11 mi (1,762.40 km) |
| Plonsk to Palencia | 1,367.68 mi (2,201.06 km) |
