| Northolt to Selargius | 965.19 mi (1,553.32 km) |
| Northolt to Selvazzano Dentro | 699.48 mi (1,125.71 km) |
| Northolt to Senago | 597.92 mi (962.27 km) |
| Northolt to Senigallia | 830.29 mi (1,336.22 km) |
| Northolt to Seravezza | 715.75 mi (1,151.89 km) |
| Northolt to Seregno | 596.78 mi (960.42 km) |
| Northolt to Seriate | 612.51 mi (985.73 km) |
| Northolt to Sermoneta | 935.04 mi (1,504.80 km) |
| Northolt to Serramanna | 949.19 mi (1,527.58 km) |
| Northolt to Serravalle Pistoiese | 740.24 mi (1,191.30 km) |
| Northolt to Sessa Aurunca | 982.73 mi (1,581.54 km) |
| Northolt to Sesto Calende | 573.93 mi (923.66 km) |
| Northolt to Sesto Fiorentino | 755.67 mi (1,216.13 km) |
| Northolt to Sesto San Giovanni | 603.75 mi (971.64 km) |
| Northolt to Sestri Levante | 674.87 mi (1,086.09 km) |
