| Catonsville to Spello | 4,426.53 mi (7,123.82 km) |
| Catonsville to Spilamberto | 4,301.80 mi (6,923.07 km) |
| Catonsville to Spilimbergo | 4,327.28 mi (6,964.08 km) |
| Catonsville to Spinea | 4,318.30 mi (6,949.63 km) |
| Catonsville to Spoleto | 4,435.30 mi (7,137.92 km) |
| Catonsville to Spoltore | 4,509.38 mi (7,257.15 km) |
| Catonsville to Spresiano | 4,312.29 mi (6,939.97 km) |
| Catonsville to Squinzano | 4,755.24 mi (7,652.82 km) |
| Catonsville to Statte | 4,713.05 mi (7,584.92 km) |
| Catonsville to Stezzano | 4,206.53 mi (6,769.75 km) |
| Catonsville to Strada | 4,346.96 mi (6,995.75 km) |
| Catonsville to Stradella | 4,209.71 mi (6,774.87 km) |
| Catonsville to Striano | 4,587.99 mi (7,383.65 km) |
| Catonsville to Subiaco | 4,482.71 mi (7,214.22 km) |
| Catonsville to Sulmona | 4,514.79 mi (7,265.85 km) |
