| Dumbarton to Sacile | 1,008.59 mi (1,623.17 km) |
| Dumbarton to Sala Consilina | 1,409.80 mi (2,268.85 km) |
| Dumbarton to Salemi | 1,488.16 mi (2,394.97 km) |
| Dumbarton to Salerno | 1,369.34 mi (2,203.73 km) |
| Dumbarton to Salo | 968.83 mi (1,559.18 km) |
| Dumbarton to Salsomaggiore Terme | 997.19 mi (1,604.82 km) |
| Dumbarton to Saluzzo | 942.20 mi (1,516.33 km) |
| Dumbarton to Salzano | 1,019.71 mi (1,641.06 km) |
| Dumbarton to Samarate | 918.61 mi (1,478.36 km) |
| Dumbarton to San Benedetto del Tronto | 1,214.55 mi (1,954.62 km) |
| Dumbarton to San Biagio di Callalta | 1,019.66 mi (1,640.99 km) |
| Dumbarton to San Bonifacio | 1,001.85 mi (1,612.32 km) |
| Dumbarton to San Casciano in Val di Pesa | 1,096.91 mi (1,765.30 km) |
| Dumbarton to San Cataldo | 1,538.54 mi (2,476.04 km) |
| Dumbarton to San Cesareo | 1,248.14 mi (2,008.69 km) |
