| Widnes to Sestu | 1,120.14 mi (1,802.69 km) |
| Widnes to Settimo Torinese | 738.29 mi (1,188.17 km) |
| Widnes to Seveso | 751.77 mi (1,209.85 km) |
| Widnes to Sezze | 1,098.21 mi (1,767.40 km) |
| Widnes to Siano | 1,187.53 mi (1,911.14 km) |
| Widnes to Siena | 944.62 mi (1,520.21 km) |
| Widnes to Signa | 912.21 mi (1,468.06 km) |
| Widnes to Silea | 856.16 mi (1,377.86 km) |
| Widnes to Silvi Paese | 1,074.61 mi (1,729.42 km) |
| Widnes to Sinalunga | 962.60 mi (1,549.16 km) |
| Widnes to Siniscola | 1,056.82 mi (1,700.78 km) |
| Widnes to Sinnai | 1,122.56 mi (1,806.58 km) |
| Widnes to Siracusa | 1,418.45 mi (2,282.78 km) |
| Widnes to Solaro | 751.58 mi (1,209.55 km) |
| Widnes to Soliera | 855.98 mi (1,377.56 km) |
