| Welwyn Garden City to Sacile | 702.25 mi (1,130.17 km) |
| Welwyn Garden City to Sala Consilina | 1,087.94 mi (1,750.87 km) |
| Welwyn Garden City to Salemi | 1,153.70 mi (1,856.70 km) |
| Welwyn Garden City to Salerno | 1,045.50 mi (1,682.57 km) |
| Welwyn Garden City to Salo | 649.29 mi (1,044.92 km) |
| Welwyn Garden City to Salsomaggiore Terme | 671.02 mi (1,079.90 km) |
| Welwyn Garden City to Saluzzo | 607.46 mi (977.62 km) |
| Welwyn Garden City to Salzano | 707.90 mi (1,139.25 km) |
| Welwyn Garden City to Samarate | 591.09 mi (951.26 km) |
| Welwyn Garden City to San Benedetto del Tronto | 896.14 mi (1,442.20 km) |
| Welwyn Garden City to San Biagio di Callalta | 710.43 mi (1,143.33 km) |
| Welwyn Garden City to San Bonifacio | 684.80 mi (1,102.08 km) |
| Welwyn Garden City to San Casciano in Val di Pesa | 770.71 mi (1,240.33 km) |
| Welwyn Garden City to San Cataldo | 1,205.74 mi (1,940.45 km) |
| Welwyn Garden City to San Cesareo | 921.31 mi (1,482.71 km) |
