| Llanelli to Ilawa | 998.85 mi (1,607.50 km) |
| Llanelli to Imielin | 1,019.78 mi (1,641.18 km) |
| Llanelli to Inowroclaw | 948.00 mi (1,525.66 km) |
| Llanelli to Janow Lubelski | 1,146.30 mi (1,844.79 km) |
| Llanelli to Jarocin | 921.87 mi (1,483.61 km) |
| Llanelli to Jaroslaw | 1,169.87 mi (1,882.72 km) |
| Llanelli to Jasien | 957.84 mi (1,541.49 km) |
| Llanelli to Jaslo | 1,123.50 mi (1,808.10 km) |
| Llanelli to Jastrzebie-Zdroj | 996.03 mi (1,602.96 km) |
| Llanelli to Jawor | 876.64 mi (1,410.81 km) |
| Llanelli to Jaworzno | 1,020.80 mi (1,642.82 km) |
| Llanelli to Jedrzejow | 1,057.55 mi (1,701.97 km) |
| Llanelli to Jelcz-Laskowice | 925.19 mi (1,488.94 km) |
| Llanelli to Jelenia Gora | 858.71 mi (1,381.95 km) |
| Llanelli to Jozefoslaw | 1,069.91 mi (1,721.85 km) |
