| Tettnang to Castelo Branco | 1,007.53 mi (1,621.47 km) |
| Tettnang to Castro Daire | 981.65 mi (1,579.81 km) |
| Tettnang to Celorico de Basto | 966.12 mi (1,554.83 km) |
| Tettnang to Chamusca | 1,068.61 mi (1,719.76 km) |
| Tettnang to Chaves | 929.84 mi (1,496.43 km) |
| Tettnang to Cinfaes | 982.60 mi (1,581.35 km) |
| Tettnang to Coimbra | 1,030.34 mi (1,658.17 km) |
| Tettnang to Condeixa-a-Nova | 1,037.20 mi (1,669.21 km) |
| Tettnang to Corroios | 1,128.47 mi (1,816.09 km) |
| Tettnang to Coruche | 1,087.50 mi (1,750.17 km) |
| Tettnang to Costa de Caparica | 1,130.67 mi (1,819.64 km) |
| Tettnang to Covilha | 987.92 mi (1,589.90 km) |
| Tettnang to Eiras | 1,028.86 mi (1,655.79 km) |
| Tettnang to Elvas | 1,035.19 mi (1,665.98 km) |
| Tettnang to Entroncamento | 1,063.04 mi (1,710.79 km) |
