| Tucson to Sestu | 6,179.62 mi (9,945.14 km) |
| Tucson to Settimo Torinese | 5,858.14 mi (9,427.76 km) |
| Tucson to Seveso | 5,883.75 mi (9,468.97 km) |
| Tucson to Sezze | 6,224.05 mi (10,016.64 km) |
| Tucson to Siano | 6,317.57 mi (10,167.15 km) |
| Tucson to Siena | 6,072.71 mi (9,773.09 km) |
| Tucson to Signa | 6,042.03 mi (9,723.70 km) |
| Tucson to Silea | 5,993.51 mi (9,645.62 km) |
| Tucson to Silvi Paese | 6,209.71 mi (9,993.56 km) |
| Tucson to Sinalunga | 6,092.08 mi (9,804.26 km) |
| Tucson to Siniscola | 6,142.95 mi (9,886.13 km) |
| Tucson to Sinnai | 6,183.83 mi (9,951.92 km) |
| Tucson to Siracusa | 6,526.89 mi (10,504.02 km) |
| Tucson to Solaro | 5,883.17 mi (9,468.05 km) |
| Tucson to Soliera | 5,989.98 mi (9,639.94 km) |
