| Boulder City to Santarem | 5,442.49 mi (8,758.83 km) |
| Boulder City to Santiago do Cacem | 5,493.18 mi (8,840.41 km) |
| Boulder City to Santo Andre | 5,489.62 mi (8,834.68 km) |
| Boulder City to Santo Tirso | 5,363.62 mi (8,631.92 km) |
| Boulder City to Sao Bras de Alportel | 5,565.26 mi (8,956.42 km) |
| Boulder City to Sao Felix da Marinha | 5,369.67 mi (8,641.64 km) |
| Boulder City to Sao Joao da Madeira | 5,380.96 mi (8,659.81 km) |
| Boulder City to Sao Joao de Ver | 5,376.00 mi (8,651.84 km) |
| Boulder City to Sao Mamede de Infesta | 5,363.68 mi (8,632.01 km) |
| Boulder City to Sao Pedro do Sul | 5,404.67 mi (8,697.97 km) |
| Boulder City to Satao | 5,419.19 mi (8,721.34 km) |
| Boulder City to Seia | 5,433.65 mi (8,744.62 km) |
| Boulder City to Senhora da Hora | 5,362.16 mi (8,629.56 km) |
| Boulder City to Serpa | 5,543.52 mi (8,921.43 km) |
| Boulder City to Serta | 5,443.37 mi (8,760.26 km) |
