| Groningen to Sangeorz-Bai | 892.37 mi (1,436.13 km) |
| Groningen to Sannicolau Mare | 797.14 mi (1,282.88 km) |
| Groningen to Santana | 815.29 mi (1,312.09 km) |
| Groningen to Satu Mare | 806.85 mi (1,298.50 km) |
| Groningen to Scobinti | 980.63 mi (1,578.18 km) |
| Groningen to Scornicesti | 1,007.42 mi (1,621.29 km) |
| Groningen to Sebes | 908.28 mi (1,461.74 km) |
| Groningen to Seini | 823.75 mi (1,325.69 km) |
| Groningen to Sfantu-Gheorghe | 995.75 mi (1,602.50 km) |
| Groningen to Sibiu | 937.21 mi (1,508.30 km) |
| Groningen to Sighetu Marmatiei | 840.63 mi (1,352.86 km) |
| Groningen to Sighisoara | 942.98 mi (1,517.58 km) |
| Groningen to Simeria | 892.61 mi (1,436.52 km) |
| Groningen to Sinaia | 1,008.92 mi (1,623.70 km) |
| Groningen to Slatina | 1,007.35 mi (1,621.17 km) |
