| Aberystwyth to Idar-Oberstein | 528.13 mi (849.94 km) |
| Aberystwyth to Idstein | 553.87 mi (891.36 km) |
| Aberystwyth to Illertissen | 687.41 mi (1,106.28 km) |
| Aberystwyth to Illingen | 527.93 mi (849.63 km) |
| Aberystwyth to Ilmenau | 654.24 mi (1,052.90 km) |
| Aberystwyth to Ilsede | 601.26 mi (967.64 km) |
| Aberystwyth to Ilsenburg | 626.12 mi (1,007.64 km) |
| Aberystwyth to Ilsfeld | 626.46 mi (1,008.19 km) |
| Aberystwyth to Ilvesheim | 586.01 mi (943.10 km) |
| Aberystwyth to Immenstadt im Allgau | 716.28 mi (1,152.74 km) |
| Aberystwyth to Ingelheim | 551.12 mi (886.95 km) |
| Aberystwyth to Ingolstadt | 723.71 mi (1,164.69 km) |
| Aberystwyth to Iserlohn | 505.31 mi (813.23 km) |
| Aberystwyth to Isernhagen-Sud | 586.36 mi (943.66 km) |
| Aberystwyth to Ismaning | 750.84 mi (1,208.35 km) |
