| Swansea to Ilawa | 4,818.61 mi (7,754.80 km) |
| Swansea to Imielin | 4,956.24 mi (7,976.30 km) |
| Swansea to Inowroclaw | 4,810.11 mi (7,741.12 km) |
| Swansea to Janow Lubelski | 5,038.45 mi (8,108.61 km) |
| Swansea to Jarocin | 4,819.36 mi (7,756.01 km) |
| Swansea to Jaroslaw | 5,078.86 mi (8,173.63 km) |
| Swansea to Jasien | 4,754.84 mi (7,652.17 km) |
| Swansea to Jaslo | 5,050.38 mi (8,127.80 km) |
| Swansea to Jastrzebie-Zdroj | 4,942.26 mi (7,953.79 km) |
| Swansea to Jawor | 4,812.91 mi (7,745.63 km) |
| Swansea to Jaworzno | 4,954.99 mi (7,974.28 km) |
| Swansea to Jedrzejow | 4,971.36 mi (8,000.64 km) |
| Swansea to Jelcz-Laskowice | 4,852.86 mi (7,809.92 km) |
| Swansea to Jelenia Gora | 4,802.71 mi (7,729.22 km) |
| Swansea to Jozefoslaw | 4,931.61 mi (7,936.66 km) |
