| Alpena to Sangeorgiu de Mures | 4,740.65 mi (7,629.34 km) |
| Alpena to Sangeorz-Bai | 4,708.74 mi (7,577.99 km) |
| Alpena to Sannicolau Mare | 4,628.64 mi (7,449.07 km) |
| Alpena to Santana | 4,646.87 mi (7,478.41 km) |
| Alpena to Satu Mare | 4,628.02 mi (7,448.08 km) |
| Alpena to Scobinti | 4,783.54 mi (7,698.37 km) |
| Alpena to Scornicesti | 4,838.75 mi (7,787.22 km) |
| Alpena to Sebes | 4,737.79 mi (7,624.74 km) |
| Alpena to Seini | 4,643.49 mi (7,472.98 km) |
| Alpena to Sfantu-Gheorghe | 4,818.98 mi (7,755.40 km) |
| Alpena to Sibiu | 4,766.02 mi (7,670.16 km) |
| Alpena to Sighetu Marmatiei | 4,655.59 mi (7,492.45 km) |
| Alpena to Sighisoara | 4,767.76 mi (7,672.96 km) |
| Alpena to Simeria | 4,723.44 mi (7,601.63 km) |
| Alpena to Sinaia | 4,835.83 mi (7,782.52 km) |
