| Merchtem to Olivenza | 1,011.58 mi (1,627.98 km) |
| Merchtem to Olot | 612.53 mi (985.77 km) |
| Merchtem to Onate | 630.79 mi (1,015.16 km) |
| Merchtem to Onda | 790.55 mi (1,272.26 km) |
| Merchtem to Onteniente | 871.42 mi (1,402.42 km) |
| Merchtem to Orihuela | 925.26 mi (1,489.07 km) |
| Merchtem to Osuna | 1,053.89 mi (1,696.07 km) |
| Merchtem to Ourense | 825.44 mi (1,328.42 km) |
| Merchtem to Oviedo | 706.11 mi (1,136.37 km) |
| Merchtem to Paiporta | 828.37 mi (1,333.14 km) |
| Merchtem to Pajara | 1,830.69 mi (2,946.21 km) |
| Merchtem to Palafolls | 646.24 mi (1,040.03 km) |
| Merchtem to Palafrugell | 627.30 mi (1,009.54 km) |
| Merchtem to Palamos | 632.37 mi (1,017.69 km) |
| Merchtem to Palencia | 744.70 mi (1,198.49 km) |
