| Falls Church to Sestu | 4,428.79 mi (7,127.45 km) |
| Falls Church to Settimo Torinese | 4,175.99 mi (6,720.60 km) |
| Falls Church to Seveso | 4,219.05 mi (6,789.90 km) |
| Falls Church to Sezze | 4,530.79 mi (7,291.60 km) |
| Falls Church to Siano | 4,628.15 mi (7,448.29 km) |
| Falls Church to Siena | 4,390.81 mi (7,066.32 km) |
| Falls Church to Signa | 4,364.91 mi (7,024.64 km) |
| Falls Church to Silea | 4,353.06 mi (7,005.58 km) |
| Falls Church to Silvi Paese | 4,539.14 mi (7,305.04 km) |
| Falls Church to Sinalunga | 4,411.85 mi (7,100.18 km) |
| Falls Church to Siniscola | 4,412.23 mi (7,100.79 km) |
| Falls Church to Sinnai | 4,433.81 mi (7,135.53 km) |
| Falls Church to Siracusa | 4,795.63 mi (7,717.82 km) |
| Falls Church to Solaro | 4,217.66 mi (6,787.66 km) |
| Falls Church to Soliera | 4,325.27 mi (6,960.85 km) |
