| Simi Valley to Spello | 6,281.87 mi (10,109.69 km) |
| Simi Valley to Spilamberto | 6,146.95 mi (9,892.56 km) |
| Simi Valley to Spilimbergo | 6,117.96 mi (9,845.90 km) |
| Simi Valley to Spinea | 6,130.66 mi (9,866.34 km) |
| Simi Valley to Spoleto | 6,294.89 mi (10,130.64 km) |
| Simi Valley to Spoltore | 6,356.67 mi (10,230.08 km) |
| Simi Valley to Spresiano | 6,117.69 mi (9,845.48 km) |
| Simi Valley to Squinzano | 6,588.61 mi (10,603.34 km) |
| Simi Valley to Statte | 6,555.49 mi (10,550.04 km) |
| Simi Valley to Stezzano | 6,045.05 mi (9,728.56 km) |
| Simi Valley to Strada | 6,207.16 mi (9,989.46 km) |
| Simi Valley to Stradella | 6,063.72 mi (9,758.62 km) |
| Simi Valley to Striano | 6,460.19 mi (10,396.68 km) |
| Simi Valley to Subiaco | 6,352.69 mi (10,223.66 km) |
| Simi Valley to Sulmona | 6,372.39 mi (10,255.37 km) |
