| Douai to Santiago do Cacem | 1,031.29 mi (1,659.71 km) |
| Douai to Santo Andre | 1,030.69 mi (1,658.74 km) |
| Douai to Santo Tirso | 833.98 mi (1,342.16 km) |
| Douai to Sao Bras de Alportel | 1,062.25 mi (1,709.52 km) |
| Douai to Sao Felix da Marinha | 855.35 mi (1,376.55 km) |
| Douai to Sao Joao da Madeira | 858.73 mi (1,381.98 km) |
| Douai to Sao Joao de Ver | 857.51 mi (1,380.03 km) |
| Douai to Sao Mamede de Infesta | 845.50 mi (1,360.70 km) |
| Douai to Sao Pedro do Sul | 854.05 mi (1,374.47 km) |
| Douai to Satao | 845.05 mi (1,359.97 km) |
| Douai to Seia | 861.98 mi (1,387.22 km) |
| Douai to Senhora da Hora | 847.88 mi (1,364.53 km) |
| Douai to Serpa | 1,006.37 mi (1,619.60 km) |
| Douai to Serta | 909.44 mi (1,463.61 km) |
| Douai to Sesimbra | 1,017.27 mi (1,637.14 km) |
