| Houten to Olivenza | 1,094.51 mi (1,761.45 km) |
| Houten to Olot | 692.07 mi (1,113.78 km) |
| Houten to Onate | 714.53 mi (1,149.92 km) |
| Houten to Onda | 873.17 mi (1,405.23 km) |
| Houten to Onteniente | 954.01 mi (1,535.33 km) |
| Houten to Orihuela | 1,007.93 mi (1,622.10 km) |
| Houten to Osuna | 1,137.79 mi (1,831.10 km) |
| Houten to Ourense | 904.64 mi (1,455.88 km) |
| Houten to Oviedo | 786.51 mi (1,265.76 km) |
| Houten to Paiporta | 910.97 mi (1,466.07 km) |
| Houten to Pajara | 1,913.35 mi (3,079.24 km) |
| Houten to Palafolls | 725.02 mi (1,166.81 km) |
| Houten to Palafrugell | 705.22 mi (1,134.94 km) |
| Houten to Palamos | 710.35 mi (1,143.19 km) |
| Houten to Palencia | 827.68 mi (1,332.03 km) |
