| Glenn Dale to Santarem | 3,559.42 mi (5,728.33 km) |
| Glenn Dale to Santiago do Cacem | 3,591.99 mi (5,780.75 km) |
| Glenn Dale to Santo Andre | 3,588.57 mi (5,775.25 km) |
| Glenn Dale to Santo Tirso | 3,515.51 mi (5,657.66 km) |
| Glenn Dale to Sao Bras de Alportel | 3,657.31 mi (5,885.88 km) |
| Glenn Dale to Sao Felix da Marinha | 3,515.51 mi (5,657.67 km) |
| Glenn Dale to Sao Joao da Madeira | 3,525.50 mi (5,673.74 km) |
| Glenn Dale to Sao Joao de Ver | 3,521.03 mi (5,666.56 km) |
| Glenn Dale to Sao Mamede de Infesta | 3,512.42 mi (5,652.70 km) |
| Glenn Dale to Sao Pedro do Sul | 3,549.77 mi (5,712.80 km) |
| Glenn Dale to Satao | 3,566.38 mi (5,739.53 km) |
| Glenn Dale to Seia | 3,576.03 mi (5,755.06 km) |
| Glenn Dale to Senhora da Hora | 3,510.31 mi (5,649.29 km) |
| Glenn Dale to Serpa | 3,648.81 mi (5,872.19 km) |
| Glenn Dale to Serta | 3,573.09 mi (5,750.33 km) |
