| Donaueschingen to Castelo Branco | 972.17 mi (1,564.55 km) |
| Donaueschingen to Castro Daire | 943.30 mi (1,518.09 km) |
| Donaueschingen to Celorico de Basto | 926.61 mi (1,491.23 km) |
| Donaueschingen to Chamusca | 1,032.91 mi (1,662.30 km) |
| Donaueschingen to Chaves | 890.10 mi (1,432.47 km) |
| Donaueschingen to Cinfaes | 943.57 mi (1,518.53 km) |
| Donaueschingen to Coimbra | 992.89 mi (1,597.90 km) |
| Donaueschingen to Condeixa-a-Nova | 999.86 mi (1,609.13 km) |
| Donaueschingen to Corroios | 1,093.36 mi (1,759.59 km) |
| Donaueschingen to Coruche | 1,052.55 mi (1,693.92 km) |
| Donaueschingen to Costa de Caparica | 1,095.40 mi (1,762.87 km) |
| Donaueschingen to Covilha | 951.51 mi (1,531.30 km) |
| Donaueschingen to Eiras | 991.35 mi (1,595.42 km) |
| Donaueschingen to Elvas | 1,002.43 mi (1,613.25 km) |
| Donaueschingen to Entroncamento | 1,027.11 mi (1,652.98 km) |
