| Clayton to Santarem | 1,055.76 mi (1,699.08 km) |
| Clayton to Santiago do Cacem | 1,137.18 mi (1,830.12 km) |
| Clayton to Santo Andre | 1,135.64 mi (1,827.63 km) |
| Clayton to Santo Tirso | 913.37 mi (1,469.93 km) |
| Clayton to Sao Bras de Alportel | 1,185.13 mi (1,907.28 km) |
| Clayton to Sao Felix da Marinha | 935.54 mi (1,505.60 km) |
| Clayton to Sao Joao da Madeira | 942.50 mi (1,516.81 km) |
| Clayton to Sao Joao de Ver | 939.70 mi (1,512.30 km) |
| Clayton to Sao Mamede de Infesta | 924.24 mi (1,487.41 km) |
| Clayton to Sao Pedro do Sul | 946.04 mi (1,522.51 km) |
| Clayton to Satao | 942.53 mi (1,516.85 km) |
| Clayton to Seia | 962.91 mi (1,549.66 km) |
| Clayton to Senhora da Hora | 925.96 mi (1,490.19 km) |
| Clayton to Serpa | 1,128.17 mi (1,815.61 km) |
| Clayton to Serta | 1,009.82 mi (1,625.14 km) |
