| Mission to Sestu | 5,933.73 mi (9,549.42 km) |
| Mission to Settimo Torinese | 5,672.28 mi (9,128.66 km) |
| Mission to Seveso | 5,712.34 mi (9,193.13 km) |
| Mission to Sezze | 6,030.35 mi (9,704.91 km) |
| Mission to Siano | 6,127.53 mi (9,861.31 km) |
| Mission to Siena | 5,888.06 mi (9,475.91 km) |
| Mission to Signa | 5,861.23 mi (9,432.74 km) |
| Mission to Silea | 5,842.15 mi (9,402.04 km) |
| Mission to Silvi Paese | 6,035.15 mi (9,712.64 km) |
| Mission to Sinalunga | 5,908.91 mi (9,509.47 km) |
| Mission to Siniscola | 5,915.79 mi (9,520.54 km) |
| Mission to Sinnai | 5,938.72 mi (9,557.45 km) |
| Mission to Siracusa | 6,299.93 mi (10,138.76 km) |
| Mission to Solaro | 5,711.10 mi (9,191.13 km) |
| Mission to Soliera | 5,819.15 mi (9,365.01 km) |
