| Knjazevac to Olivenza | 1,564.71 mi (2,518.15 km) |
| Knjazevac to Olot | 1,012.07 mi (1,628.77 km) |
| Knjazevac to Onate | 1,246.01 mi (2,005.26 km) |
| Knjazevac to Onda | 1,191.61 mi (1,917.72 km) |
| Knjazevac to Onteniente | 1,236.86 mi (1,990.54 km) |
| Knjazevac to Orihuela | 1,274.03 mi (2,050.35 km) |
| Knjazevac to Osuna | 1,504.85 mi (2,421.83 km) |
| Knjazevac to Ourense | 1,526.60 mi (2,456.83 km) |
| Knjazevac to Oviedo | 1,412.06 mi (2,272.48 km) |
| Knjazevac to Paiporta | 1,211.99 mi (1,950.51 km) |
| Knjazevac to Pajara | 2,271.77 mi (3,656.07 km) |
| Knjazevac to Palafolls | 1,006.86 mi (1,620.38 km) |
| Knjazevac to Palafrugell | 982.22 mi (1,580.73 km) |
| Knjazevac to Palamos | 985.05 mi (1,585.28 km) |
| Knjazevac to Palencia | 1,365.85 mi (2,198.12 km) |
