| Zaventem to Olivenza | 1,013.25 mi (1,630.67 km) |
| Zaventem to Olot | 608.43 mi (979.18 km) |
| Zaventem to Onate | 631.47 mi (1,016.25 km) |
| Zaventem to Onda | 788.23 mi (1,268.54 km) |
| Zaventem to Onteniente | 869.08 mi (1,398.65 km) |
| Zaventem to Orihuela | 922.99 mi (1,485.40 km) |
| Zaventem to Osuna | 1,053.94 mi (1,696.15 km) |
| Zaventem to Ourense | 829.32 mi (1,334.65 km) |
| Zaventem to Oviedo | 709.49 mi (1,141.81 km) |
| Zaventem to Paiporta | 826.04 mi (1,329.38 km) |
| Zaventem to Pajara | 1,832.53 mi (2,949.17 km) |
| Zaventem to Palafolls | 641.84 mi (1,032.94 km) |
| Zaventem to Palafrugell | 622.56 mi (1,001.92 km) |
| Zaventem to Palamos | 627.65 mi (1,010.11 km) |
| Zaventem to Palencia | 746.38 mi (1,201.18 km) |
