| Middlesbrough to Sangeorgiu de Mures | 1,247.41 mi (2,007.52 km) |
| Middlesbrough to Sangeorz-Bai | 1,223.42 mi (1,968.91 km) |
| Middlesbrough to Sannicolau Mare | 1,122.11 mi (1,805.87 km) |
| Middlesbrough to Santana | 1,142.78 mi (1,839.12 km) |
| Middlesbrough to Satu Mare | 1,137.82 mi (1,831.15 km) |
| Middlesbrough to Scobinti | 1,311.20 mi (2,110.18 km) |
| Middlesbrough to Scornicesti | 1,335.03 mi (2,148.52 km) |
| Middlesbrough to Sebes | 1,237.50 mi (1,991.56 km) |
| Middlesbrough to Seini | 1,154.77 mi (1,858.42 km) |
| Middlesbrough to Sfantu-Gheorghe | 1,326.39 mi (2,134.61 km) |
| Middlesbrough to Sibiu | 1,266.70 mi (2,038.55 km) |
| Middlesbrough to Sighetu Marmatiei | 1,171.66 mi (1,885.60 km) |
| Middlesbrough to Sighisoara | 1,273.47 mi (2,049.45 km) |
| Middlesbrough to Simeria | 1,220.98 mi (1,964.98 km) |
| Middlesbrough to Sinaia | 1,338.89 mi (2,154.74 km) |
