| Duchcov to Olivenza | 1,306.78 mi (2,103.07 km) |
| Duchcov to Olot | 789.72 mi (1,270.93 km) |
| Duchcov to Onate | 922.94 mi (1,485.33 km) |
| Duchcov to Onda | 998.95 mi (1,607.65 km) |
| Duchcov to Onteniente | 1,072.92 mi (1,726.69 km) |
| Duchcov to Orihuela | 1,125.02 mi (1,810.55 km) |
| Duchcov to Osuna | 1,309.30 mi (2,107.12 km) |
| Duchcov to Ourense | 1,170.14 mi (1,883.16 km) |
| Duchcov to Oviedo | 1,045.86 mi (1,683.16 km) |
| Duchcov to Paiporta | 1,033.26 mi (1,662.87 km) |
| Duchcov to Pajara | 2,113.53 mi (3,401.39 km) |
| Duchcov to Palafolls | 809.58 mi (1,302.89 km) |
| Duchcov to Palafrugell | 783.15 mi (1,260.36 km) |
| Duchcov to Palamos | 788.18 mi (1,268.46 km) |
| Duchcov to Palencia | 1,050.55 mi (1,690.69 km) |
