| Genk to Olivenza | 1,046.33 mi (1,683.90 km) |
| Genk to Olot | 623.42 mi (1,003.29 km) |
| Genk to Onate | 662.23 mi (1,065.76 km) |
| Genk to Onda | 809.37 mi (1,302.56 km) |
| Genk to Onteniente | 889.99 mi (1,432.30 km) |
| Genk to Orihuela | 944.05 mi (1,519.30 km) |
| Genk to Osuna | 1,082.40 mi (1,741.96 km) |
| Genk to Ourense | 867.79 mi (1,396.58 km) |
| Genk to Oviedo | 746.97 mi (1,202.13 km) |
| Genk to Paiporta | 847.04 mi (1,363.19 km) |
| Genk to Pajara | 1,865.75 mi (3,002.63 km) |
| Genk to Palafolls | 655.52 mi (1,054.95 km) |
| Genk to Palafrugell | 634.96 mi (1,021.88 km) |
| Genk to Palamos | 640.13 mi (1,030.19 km) |
| Genk to Palencia | 779.69 mi (1,254.79 km) |
