| Houghton Regis to Sangeorgiu de Mures | 1,179.93 mi (1,898.91 km) |
| Houghton Regis to Sangeorz-Bai | 1,163.94 mi (1,873.19 km) |
| Houghton Regis to Sannicolau Mare | 1,035.16 mi (1,665.93 km) |
| Houghton Regis to Santana | 1,062.08 mi (1,709.26 km) |
| Houghton Regis to Satu Mare | 1,075.99 mi (1,731.65 km) |
| Houghton Regis to Scobinti | 1,259.31 mi (2,026.67 km) |
| Houghton Regis to Scornicesti | 1,252.12 mi (2,015.09 km) |
| Houghton Regis to Sebes | 1,161.66 mi (1,869.51 km) |
| Houghton Regis to Seini | 1,093.95 mi (1,760.54 km) |
| Houghton Regis to Sfantu-Gheorghe | 1,257.99 mi (2,024.54 km) |
| Houghton Regis to Sibiu | 1,191.71 mi (1,917.86 km) |
| Houghton Regis to Sighetu Marmatiei | 1,114.70 mi (1,793.93 km) |
| Houghton Regis to Sighisoara | 1,204.35 mi (1,938.21 km) |
| Houghton Regis to Simeria | 1,142.05 mi (1,837.95 km) |
| Houghton Regis to Sinaia | 1,265.62 mi (2,036.82 km) |
