| Helensburgh to Sangeorgiu de Mures | 1,406.66 mi (2,263.79 km) |
| Helensburgh to Sangeorz-Bai | 1,380.18 mi (2,221.18 km) |
| Helensburgh to Sannicolau Mare | 1,287.01 mi (2,071.24 km) |
| Helensburgh to Santana | 1,306.14 mi (2,102.03 km) |
| Helensburgh to Satu Mare | 1,295.81 mi (2,085.40 km) |
| Helensburgh to Scobinti | 1,464.79 mi (2,357.35 km) |
| Helensburgh to Scornicesti | 1,498.33 mi (2,411.33 km) |
| Helensburgh to Sebes | 1,399.23 mi (2,251.85 km) |
| Helensburgh to Seini | 1,312.34 mi (2,112.00 km) |
| Helensburgh to Sfantu-Gheorghe | 1,485.59 mi (2,390.83 km) |
| Helensburgh to Sibiu | 1,428.09 mi (2,298.29 km) |
| Helensburgh to Sighetu Marmatiei | 1,327.83 mi (2,136.94 km) |
| Helensburgh to Sighisoara | 1,433.11 mi (2,306.36 km) |
| Helensburgh to Simeria | 1,383.61 mi (2,226.71 km) |
| Helensburgh to Sinaia | 1,499.53 mi (2,413.26 km) |
