| Llantwit Major to Sesimbra | 936.23 mi (1,506.72 km) |
| Llantwit Major to Setubal | 927.97 mi (1,493.42 km) |
| Llantwit Major to Sever do Vouga | 773.36 mi (1,244.61 km) |
| Llantwit Major to Silves | 1,012.06 mi (1,628.75 km) |
| Llantwit Major to Sines | 965.72 mi (1,554.17 km) |
| Llantwit Major to Sintra | 916.80 mi (1,475.44 km) |
| Llantwit Major to Sobrado de Paiva | 752.00 mi (1,210.22 km) |
| Llantwit Major to Sobral de Monte Agraco | 898.75 mi (1,446.40 km) |
| Llantwit Major to Soure | 822.61 mi (1,323.86 km) |
| Llantwit Major to Tabua | 793.61 mi (1,277.19 km) |
| Llantwit Major to Tavira | 1,008.26 mi (1,622.64 km) |
| Llantwit Major to Tomar | 849.60 mi (1,367.31 km) |
| Llantwit Major to Tondela | 783.87 mi (1,261.51 km) |
| Llantwit Major to Torre de Moncorvo | 726.24 mi (1,168.76 km) |
| Llantwit Major to Torres Novas | 860.09 mi (1,384.18 km) |
