| Aberystwyth to Ilawa | 981.96 mi (1,580.32 km) |
| Aberystwyth to Imielin | 1,014.73 mi (1,633.05 km) |
| Aberystwyth to Inowroclaw | 934.12 mi (1,503.31 km) |
| Aberystwyth to Janow Lubelski | 1,137.63 mi (1,830.84 km) |
| Aberystwyth to Jarocin | 911.23 mi (1,466.48 km) |
| Aberystwyth to Jaroslaw | 1,163.09 mi (1,871.81 km) |
| Aberystwyth to Jasien | 938.48 mi (1,510.33 km) |
| Aberystwyth to Jaslo | 1,118.24 mi (1,799.64 km) |
| Aberystwyth to Jastrzebie-Zdroj | 992.00 mi (1,596.47 km) |
| Aberystwyth to Jawor | 870.07 mi (1,400.24 km) |
| Aberystwyth to Jaworzno | 1,015.48 mi (1,634.25 km) |
| Aberystwyth to Jedrzejow | 1,050.24 mi (1,690.19 km) |
| Aberystwyth to Jelcz-Laskowice | 918.08 mi (1,477.50 km) |
| Aberystwyth to Jelenia Gora | 852.98 mi (1,372.73 km) |
| Aberystwyth to Jozefoslaw | 1,057.57 mi (1,702.00 km) |
