| Acton to Sangeorgiu de Mures | 1,165.47 mi (1,875.64 km) |
| Acton to Sangeorz-Bai | 1,150.72 mi (1,851.91 km) |
| Acton to Sannicolau Mare | 1,018.07 mi (1,638.43 km) |
| Acton to Santana | 1,045.88 mi (1,683.17 km) |
| Acton to Satu Mare | 1,062.60 mi (1,710.10 km) |
| Acton to Scobinti | 1,247.06 mi (2,006.95 km) |
| Acton to Scornicesti | 1,235.25 mi (1,987.94 km) |
| Acton to Sebes | 1,145.99 mi (1,844.29 km) |
| Acton to Seini | 1,080.67 mi (1,739.17 km) |
| Acton to Sfantu-Gheorghe | 1,243.26 mi (2,000.84 km) |
| Acton to Sibiu | 1,176.11 mi (1,892.76 km) |
| Acton to Sighetu Marmatiei | 1,101.96 mi (1,773.43 km) |
| Acton to Sighisoara | 1,189.60 mi (1,914.48 km) |
| Acton to Simeria | 1,125.95 mi (1,812.04 km) |
| Acton to Sinaia | 1,250.15 mi (2,011.93 km) |
