| Gaithersburg to Santa Venerina | 4,757.61 mi (7,656.64 km) |
| Gaithersburg to Santeramo in Colle | 4,710.96 mi (7,581.56 km) |
| Gaithersburg to Santo Stefano di Magra | 4,292.20 mi (6,907.63 km) |
| Gaithersburg to Santo Stino di Livenza | 4,357.54 mi (7,012.79 km) |
| Gaithersburg to Sarezzo | 4,255.39 mi (6,848.38 km) |
| Gaithersburg to Sarno | 4,616.05 mi (7,428.82 km) |
| Gaithersburg to Saronno | 4,206.54 mi (6,769.77 km) |
| Gaithersburg to Sarzana | 4,295.78 mi (6,913.39 km) |
| Gaithersburg to Sassari | 4,347.83 mi (6,997.16 km) |
| Gaithersburg to Sasso Marconi | 4,341.93 mi (6,987.66 km) |
| Gaithersburg to Sassuolo | 4,316.83 mi (6,947.27 km) |
| Gaithersburg to Sava | 4,761.20 mi (7,662.41 km) |
| Gaithersburg to Saviano | 4,607.94 mi (7,415.76 km) |
| Gaithersburg to Savigliano | 4,176.98 mi (6,722.20 km) |
| Gaithersburg to Savignano sul Panaro | 4,329.79 mi (6,968.13 km) |
