| Gaithersburg to Spello | 4,452.24 mi (7,165.19 km) |
| Gaithersburg to Spilamberto | 4,327.39 mi (6,964.27 km) |
| Gaithersburg to Spilimbergo | 4,352.54 mi (7,004.74 km) |
| Gaithersburg to Spinea | 4,343.70 mi (6,990.52 km) |
| Gaithersburg to Spoleto | 4,461.03 mi (7,179.34 km) |
| Gaithersburg to Spoltore | 4,535.08 mi (7,298.50 km) |
| Gaithersburg to Spresiano | 4,337.65 mi (6,980.77 km) |
| Gaithersburg to Squinzano | 4,780.95 mi (7,694.20 km) |
| Gaithersburg to Statte | 4,738.79 mi (7,626.35 km) |
| Gaithersburg to Stezzano | 4,232.04 mi (6,810.82 km) |
| Gaithersburg to Strada | 4,372.66 mi (7,037.12 km) |
| Gaithersburg to Stradella | 4,235.32 mi (6,816.09 km) |
| Gaithersburg to Striano | 4,613.85 mi (7,425.27 km) |
| Gaithersburg to Subiaco | 4,508.52 mi (7,255.76 km) |
| Gaithersburg to Sulmona | 4,540.54 mi (7,307.30 km) |
