| Kyustendil to Olivenza | 1,576.55 mi (2,537.20 km) |
| Kyustendil to Olot | 1,030.69 mi (1,658.74 km) |
| Kyustendil to Onate | 1,271.67 mi (2,046.56 km) |
| Kyustendil to Onda | 1,201.36 mi (1,933.40 km) |
| Kyustendil to Onteniente | 1,241.75 mi (1,998.41 km) |
| Kyustendil to Orihuela | 1,276.13 mi (2,053.73 km) |
| Kyustendil to Osuna | 1,509.14 mi (2,428.73 km) |
| Kyustendil to Ourense | 1,552.31 mi (2,498.20 km) |
| Kyustendil to Oviedo | 1,440.62 mi (2,318.46 km) |
| Kyustendil to Paiporta | 1,219.41 mi (1,962.45 km) |
| Kyustendil to Pajara | 2,263.47 mi (3,642.71 km) |
| Kyustendil to Palafolls | 1,022.39 mi (1,645.38 km) |
| Kyustendil to Palafrugell | 998.83 mi (1,607.47 km) |
| Kyustendil to Palamos | 1,001.28 mi (1,611.40 km) |
| Kyustendil to Palencia | 1,388.32 mi (2,234.29 km) |
