| Cologne to Olivenza | 1,087.49 mi (1,750.14 km) |
| Cologne to Olot | 640.65 mi (1,031.03 km) |
| Cologne to Onate | 701.14 mi (1,128.38 km) |
| Cologne to Onda | 834.06 mi (1,342.28 km) |
| Cologne to Onteniente | 914.03 mi (1,470.99 km) |
| Cologne to Orihuela | 968.13 mi (1,558.05 km) |
| Cologne to Osuna | 1,116.72 mi (1,797.19 km) |
| Cologne to Ourense | 917.40 mi (1,476.42 km) |
| Cologne to Oviedo | 795.30 mi (1,279.92 km) |
| Cologne to Paiporta | 871.39 mi (1,402.36 km) |
| Cologne to Pajara | 1,906.31 mi (3,067.91 km) |
| Cologne to Palafolls | 670.70 mi (1,079.38 km) |
| Cologne to Palafrugell | 648.53 mi (1,043.71 km) |
| Cologne to Palamos | 653.77 mi (1,052.14 km) |
| Cologne to Palencia | 821.80 mi (1,322.57 km) |
