| Glenn Dale to Sangeorgiu de Mures | 4,793.46 mi (7,714.32 km) |
| Glenn Dale to Sangeorz-Bai | 4,768.84 mi (7,674.71 km) |
| Glenn Dale to Sannicolau Mare | 4,660.74 mi (7,500.74 km) |
| Glenn Dale to Santana | 4,685.12 mi (7,539.97 km) |
| Glenn Dale to Satu Mare | 4,683.75 mi (7,537.77 km) |
| Glenn Dale to Scobinti | 4,853.61 mi (7,811.12 km) |
| Glenn Dale to Scornicesti | 4,876.71 mi (7,848.30 km) |
| Glenn Dale to Sebes | 4,782.04 mi (7,695.95 km) |
| Glenn Dale to Seini | 4,700.56 mi (7,564.82 km) |
| Glenn Dale to Sfantu-Gheorghe | 4,872.42 mi (7,841.41 km) |
| Glenn Dale to Sibiu | 4,811.56 mi (7,743.46 km) |
| Glenn Dale to Sighetu Marmatiei | 4,716.68 mi (7,590.76 km) |
| Glenn Dale to Sighisoara | 4,819.43 mi (7,756.12 km) |
| Glenn Dale to Simeria | 4,764.34 mi (7,667.47 km) |
| Glenn Dale to Sinaia | 4,884.31 mi (7,860.54 km) |
