| Douai to Castelo Branco | 891.47 mi (1,434.68 km) |
| Douai to Castro Daire | 841.56 mi (1,354.37 km) |
| Douai to Celorico de Basto | 816.59 mi (1,314.18 km) |
| Douai to Chamusca | 946.64 mi (1,523.47 km) |
| Douai to Chaves | 780.47 mi (1,256.05 km) |
| Douai to Cinfaes | 836.45 mi (1,346.13 km) |
| Douai to Coimbra | 895.49 mi (1,441.16 km) |
| Douai to Condeixa-a-Nova | 902.99 mi (1,453.22 km) |
| Douai to Corroios | 1,008.75 mi (1,623.43 km) |
| Douai to Coruche | 970.85 mi (1,562.43 km) |
| Douai to Costa de Caparica | 1,009.47 mi (1,624.58 km) |
| Douai to Covilha | 864.18 mi (1,390.76 km) |
| Douai to Eiras | 893.58 mi (1,438.07 km) |
| Douai to Elvas | 938.78 mi (1,510.82 km) |
| Douai to Entroncamento | 939.50 mi (1,511.98 km) |
