| Sundsvall to Sestu | 1,632.90 mi (2,627.91 km) |
| Sundsvall to Settimo Torinese | 1,252.01 mi (2,014.92 km) |
| Sundsvall to Seveso | 1,202.18 mi (1,934.73 km) |
| Sundsvall to Sezze | 1,454.60 mi (2,340.95 km) |
| Sundsvall to Siano | 1,496.19 mi (2,407.88 km) |
| Sundsvall to Siena | 1,340.49 mi (2,157.31 km) |
| Sundsvall to Signa | 1,310.46 mi (2,108.98 km) |
| Sundsvall to Silea | 1,173.93 mi (1,889.27 km) |
| Sundsvall to Silvi Paese | 1,377.69 mi (2,217.18 km) |
| Sundsvall to Sinalunga | 1,344.60 mi (2,163.93 km) |
| Sundsvall to Siniscola | 1,540.76 mi (2,479.62 km) |
| Sundsvall to Sinnai | 1,631.71 mi (2,625.98 km) |
| Sundsvall to Siracusa | 1,752.33 mi (2,820.11 km) |
| Sundsvall to Solaro | 1,204.67 mi (1,938.73 km) |
| Sundsvall to Soliera | 1,246.74 mi (2,006.43 km) |
