| Catonsville to Sestu | 4,395.43 mi (7,073.77 km) |
| Catonsville to Settimo Torinese | 4,141.79 mi (6,665.56 km) |
| Catonsville to Seveso | 4,184.72 mi (6,734.65 km) |
| Catonsville to Sezze | 4,496.79 mi (7,236.89 km) |
| Catonsville to Siano | 4,594.15 mi (7,393.57 km) |
| Catonsville to Siena | 4,356.67 mi (7,011.38 km) |
| Catonsville to Signa | 4,330.72 mi (6,969.62 km) |
| Catonsville to Silea | 4,318.59 mi (6,950.11 km) |
| Catonsville to Silvi Paese | 4,504.94 mi (7,250.01 km) |
| Catonsville to Sinalunga | 4,377.70 mi (7,045.22 km) |
| Catonsville to Siniscola | 4,378.61 mi (7,046.68 km) |
| Catonsville to Sinnai | 4,400.45 mi (7,081.84 km) |
| Catonsville to Siracusa | 4,762.13 mi (7,663.91 km) |
| Catonsville to Solaro | 4,183.33 mi (6,732.43 km) |
| Catonsville to Soliera | 4,290.97 mi (6,905.65 km) |
