| Donaueschingen to Grevena | 839.39 mi (1,350.87 km) |
| Donaueschingen to Ialysos | 1,277.00 mi (2,055.13 km) |
| Donaueschingen to Ilion | 1,025.99 mi (1,651.17 km) |
| Donaueschingen to Ilioupoli | 1,032.89 mi (1,662.28 km) |
| Donaueschingen to Ioannina | 839.04 mi (1,350.30 km) |
| Donaueschingen to Irakleio | 1,218.36 mi (1,960.76 km) |
| Donaueschingen to Irakleio | 1,027.64 mi (1,653.82 km) |
| Donaueschingen to Kaisariani | 1,031.43 mi (1,659.93 km) |
| Donaueschingen to Kalamaria | 875.30 mi (1,408.66 km) |
| Donaueschingen to Kalamata | 1,021.38 mi (1,643.75 km) |
| Donaueschingen to Kallithea | 1,030.19 mi (1,657.93 km) |
| Donaueschingen to Kalymnos | 1,203.29 mi (1,936.50 km) |
| Donaueschingen to Kalyvia Thorikou | 1,044.14 mi (1,680.39 km) |
| Donaueschingen to Kamatero | 1,025.11 mi (1,649.75 km) |
| Donaueschingen to Karditsa | 892.96 mi (1,437.08 km) |
