| Illingen to Castelo Branco | 971.01 mi (1,562.69 km) |
| Illingen to Castro Daire | 933.28 mi (1,501.96 km) |
| Illingen to Celorico de Basto | 913.00 mi (1,469.33 km) |
| Illingen to Chamusca | 1,030.16 mi (1,657.89 km) |
| Illingen to Chaves | 876.17 mi (1,410.06 km) |
| Illingen to Cinfaes | 931.35 mi (1,498.87 km) |
| Illingen to Coimbra | 985.21 mi (1,585.54 km) |
| Illingen to Condeixa-a-Nova | 992.47 mi (1,597.23 km) |
| Illingen to Corroios | 1,091.88 mi (1,757.20 km) |
| Illingen to Coruche | 1,051.85 mi (1,692.79 km) |
| Illingen to Costa de Caparica | 1,093.40 mi (1,759.65 km) |
| Illingen to Covilha | 947.43 mi (1,524.74 km) |
| Illingen to Eiras | 983.50 mi (1,582.79 km) |
| Illingen to Elvas | 1,008.45 mi (1,622.94 km) |
| Illingen to Entroncamento | 1,023.77 mi (1,647.60 km) |
