| Kostinbrod to Olivenza | 1,603.36 mi (2,580.35 km) |
| Kostinbrod to Olot | 1,054.15 mi (1,696.48 km) |
| Kostinbrod to Onate | 1,291.90 mi (2,079.11 km) |
| Kostinbrod to Onda | 1,228.89 mi (1,977.71 km) |
| Kostinbrod to Onteniente | 1,271.33 mi (2,046.01 km) |
| Kostinbrod to Orihuela | 1,306.84 mi (2,103.16 km) |
| Kostinbrod to Osuna | 1,539.10 mi (2,476.94 km) |
| Kostinbrod to Ourense | 1,572.64 mi (2,530.91 km) |
| Kostinbrod to Oviedo | 1,459.46 mi (2,348.77 km) |
| Kostinbrod to Paiporta | 1,247.93 mi (2,008.36 km) |
| Kostinbrod to Pajara | 2,298.36 mi (3,698.86 km) |
| Kostinbrod to Palafolls | 1,047.25 mi (1,685.39 km) |
| Kostinbrod to Palafrugell | 1,023.18 mi (1,646.65 km) |
| Kostinbrod to Palamos | 1,025.80 mi (1,650.87 km) |
| Kostinbrod to Palencia | 1,410.17 mi (2,269.45 km) |
