| Rockville to Sestu | 4,420.84 mi (7,114.66 km) |
| Rockville to Settimo Torinese | 4,167.04 mi (6,706.21 km) |
| Rockville to Seveso | 4,209.92 mi (6,775.21 km) |
| Rockville to Sezze | 4,522.11 mi (7,277.64 km) |
| Rockville to Siano | 4,619.47 mi (7,434.32 km) |
| Rockville to Siena | 4,381.95 mi (7,052.06 km) |
| Rockville to Signa | 4,355.98 mi (7,010.27 km) |
| Rockville to Silea | 4,343.72 mi (6,990.54 km) |
| Rockville to Silvi Paese | 4,530.20 mi (7,290.65 km) |
| Rockville to Sinalunga | 4,402.97 mi (7,085.90 km) |
| Rockville to Siniscola | 4,403.99 mi (7,087.54 km) |
| Rockville to Sinnai | 4,425.86 mi (7,122.73 km) |
| Rockville to Siracusa | 4,787.53 mi (7,704.79 km) |
| Rockville to Solaro | 4,208.54 mi (6,772.99 km) |
| Rockville to Soliera | 4,316.19 mi (6,946.23 km) |
