| Swindon to Santarem | 914.18 mi (1,471.24 km) |
| Swindon to Santiago do Cacem | 994.27 mi (1,600.13 km) |
| Swindon to Santo Andre | 992.90 mi (1,597.92 km) |
| Swindon to Santo Tirso | 774.20 mi (1,245.96 km) |
| Swindon to Sao Bras de Alportel | 1,039.38 mi (1,672.71 km) |
| Swindon to Sao Felix da Marinha | 796.42 mi (1,281.72 km) |
| Swindon to Sao Joao da Madeira | 802.66 mi (1,291.76 km) |
| Swindon to Sao Joao de Ver | 800.18 mi (1,287.77 km) |
| Swindon to Sao Mamede de Infesta | 785.33 mi (1,263.87 km) |
| Swindon to Sao Pedro do Sul | 804.49 mi (1,294.70 km) |
| Swindon to Satao | 799.83 mi (1,287.20 km) |
| Swindon to Seia | 819.72 mi (1,319.21 km) |
| Swindon to Senhora da Hora | 787.23 mi (1,266.92 km) |
| Swindon to Serpa | 982.31 mi (1,580.87 km) |
| Swindon to Serta | 867.11 mi (1,395.49 km) |
