| Aberystwyth to Sangeorgiu de Mures | 1,333.91 mi (2,146.72 km) |
| Aberystwyth to Sangeorz-Bai | 1,317.06 mi (2,119.60 km) |
| Aberystwyth to Sannicolau Mare | 1,189.95 mi (1,915.04 km) |
| Aberystwyth to Santana | 1,216.78 mi (1,958.22 km) |
| Aberystwyth to Satu Mare | 1,229.28 mi (1,978.33 km) |
| Aberystwyth to Scobinti | 1,411.50 mi (2,271.59 km) |
| Aberystwyth to Scornicesti | 1,406.90 mi (2,264.18 km) |
| Aberystwyth to Sebes | 1,316.20 mi (2,118.22 km) |
| Aberystwyth to Seini | 1,247.14 mi (2,007.07 km) |
| Aberystwyth to Sfantu-Gheorghe | 1,412.11 mi (2,272.57 km) |
| Aberystwyth to Sibiu | 1,346.22 mi (2,166.53 km) |
| Aberystwyth to Sighetu Marmatiei | 1,267.42 mi (2,039.71 km) |
| Aberystwyth to Sighisoara | 1,358.48 mi (2,186.27 km) |
| Aberystwyth to Simeria | 1,296.71 mi (2,086.86 km) |
| Aberystwyth to Sinaia | 1,420.08 mi (2,285.39 km) |
