| Castalla to Flemalle-Haute | 881.84 mi (1,419.19 km) |
| Castalla to Fleron | 886.55 mi (1,426.76 km) |
| Castalla to Fleurus | 859.79 mi (1,383.71 km) |
| Castalla to Florennes | 845.74 mi (1,361.08 km) |
| Castalla to Fontaine-l'Eveque | 852.36 mi (1,371.74 km) |
| Castalla to Forest | 878.47 mi (1,413.77 km) |
| Castalla to Frameries | 846.10 mi (1,361.67 km) |
| Castalla to Galmaarden | 869.63 mi (1,399.53 km) |
| Castalla to Ganshoren | 881.89 mi (1,419.26 km) |
| Castalla to Gavere | 878.13 mi (1,413.22 km) |
| Castalla to Geel | 911.10 mi (1,466.28 km) |
| Castalla to Gembloux | 867.42 mi (1,395.97 km) |
| Castalla to Genappe | 866.23 mi (1,394.06 km) |
| Castalla to Genk | 905.88 mi (1,457.87 km) |
| Castalla to Gent | 886.82 mi (1,427.21 km) |
