| Tettnang to Grevena | 787.35 mi (1,267.11 km) |
| Tettnang to Ialysos | 1,224.01 mi (1,969.85 km) |
| Tettnang to Ilion | 974.11 mi (1,567.67 km) |
| Tettnang to Ilioupoli | 981.05 mi (1,578.85 km) |
| Tettnang to Ioannina | 787.81 mi (1,267.85 km) |
| Tettnang to Irakleio | 1,167.40 mi (1,878.75 km) |
| Tettnang to Irakleio | 975.71 mi (1,570.25 km) |
| Tettnang to Kaisariani | 979.56 mi (1,576.46 km) |
| Tettnang to Kalamaria | 822.12 mi (1,323.08 km) |
| Tettnang to Kalamata | 971.49 mi (1,563.46 km) |
| Tettnang to Kallithea | 978.37 mi (1,574.53 km) |
| Tettnang to Kalymnos | 1,150.45 mi (1,851.47 km) |
| Tettnang to Kalyvia Thorikou | 992.28 mi (1,596.91 km) |
| Tettnang to Kamatero | 973.20 mi (1,566.22 km) |
| Tettnang to Karditsa | 841.20 mi (1,353.77 km) |
