| Kazanlak to Olivenza | 1,714.41 mi (2,759.08 km) |
| Kazanlak to Olot | 1,165.79 mi (1,876.16 km) |
| Kazanlak to Onate | 1,403.43 mi (2,258.61 km) |
| Kazanlak to Onda | 1,339.67 mi (2,155.99 km) |
| Kazanlak to Onteniente | 1,381.19 mi (2,222.81 km) |
| Kazanlak to Orihuela | 1,416.02 mi (2,278.86 km) |
| Kazanlak to Osuna | 1,648.76 mi (2,653.42 km) |
| Kazanlak to Ourense | 1,684.17 mi (2,710.41 km) |
| Kazanlak to Oviedo | 1,570.73 mi (2,527.85 km) |
| Kazanlak to Paiporta | 1,358.31 mi (2,185.99 km) |
| Kazanlak to Pajara | 2,403.72 mi (3,868.41 km) |
| Kazanlak to Palafolls | 1,158.72 mi (1,864.79 km) |
| Kazanlak to Palafrugell | 1,134.73 mi (1,826.17 km) |
| Kazanlak to Palamos | 1,137.33 mi (1,830.35 km) |
| Kazanlak to Palencia | 1,521.84 mi (2,449.17 km) |
