| Gaithersburg to Schiedam | 3,833.91 mi (6,170.08 km) |
| Gaithersburg to Schijndel | 3,882.63 mi (6,248.49 km) |
| Gaithersburg to Schinnen | 3,918.26 mi (6,305.83 km) |
| Gaithersburg to Schoonhoven | 3,850.90 mi (6,197.43 km) |
| Gaithersburg to Simpelveld | 3,925.42 mi (6,317.35 km) |
| Gaithersburg to Sint Anthonis | 3,900.16 mi (6,276.70 km) |
| Gaithersburg to Sint Willebrord | 3,850.84 mi (6,197.32 km) |
| Gaithersburg to Sint-Michielsgestel | 3,878.97 mi (6,242.60 km) |
| Gaithersburg to Sint-Oedenrode | 3,885.11 mi (6,252.48 km) |
| Gaithersburg to Sittard | 3,916.25 mi (6,302.59 km) |
| Gaithersburg to Sliedrecht | 3,851.00 mi (6,197.58 km) |
| Gaithersburg to Slochteren | 3,894.30 mi (6,267.27 km) |
| Gaithersburg to Sluis | 3,808.60 mi (6,129.34 km) |
| Gaithersburg to Sneek | 3,855.13 mi (6,204.23 km) |
| Gaithersburg to Soest | 3,862.70 mi (6,216.42 km) |
