| Kladno to Olivenza | 1,304.51 mi (2,099.41 km) |
| Kladno to Olot | 780.45 mi (1,256.02 km) |
| Kladno to Onate | 922.55 mi (1,484.69 km) |
| Kladno to Onda | 990.19 mi (1,593.55 km) |
| Kladno to Onteniente | 1,063.03 mi (1,710.79 km) |
| Kladno to Orihuela | 1,114.66 mi (1,793.87 km) |
| Kladno to Osuna | 1,303.01 mi (2,097.00 km) |
| Kladno to Ourense | 1,174.13 mi (1,889.58 km) |
| Kladno to Oviedo | 1,049.82 mi (1,689.52 km) |
| Kladno to Paiporta | 1,023.94 mi (1,647.87 km) |
| Kladno to Pajara | 2,107.97 mi (3,392.44 km) |
| Kladno to Palafolls | 798.92 mi (1,285.73 km) |
| Kladno to Palafrugell | 772.23 mi (1,242.78 km) |
| Kladno to Palamos | 777.19 mi (1,250.76 km) |
| Kladno to Palencia | 1,050.66 mi (1,690.87 km) |
