| Llantwit Major to Isny im Allgau | 656.68 mi (1,056.83 km) |
| Llantwit Major to Isselburg | 427.17 mi (687.46 km) |
| Llantwit Major to Issum | 425.78 mi (685.23 km) |
| Llantwit Major to Itzehoe | 570.56 mi (918.22 km) |
| Llantwit Major to Jena | 652.22 mi (1,049.64 km) |
| Llantwit Major to Jever | 500.85 mi (806.04 km) |
| Llantwit Major to Jork | 572.02 mi (920.58 km) |
| Llantwit Major to Juchen | 431.61 mi (694.61 km) |
| Llantwit Major to Julich | 427.04 mi (687.26 km) |
| Llantwit Major to Juterbog | 708.25 mi (1,139.81 km) |
| Llantwit Major to Kaarst | 435.71 mi (701.20 km) |
| Llantwit Major to Kaiserslautern | 512.57 mi (824.91 km) |
| Llantwit Major to Kalkar | 419.76 mi (675.54 km) |
| Llantwit Major to Kall | 439.74 mi (707.69 km) |
| Llantwit Major to Kaltenkirchen | 587.04 mi (944.75 km) |
