| Keystone to Sangeorgiu de Mures | 5,565.01 mi (8,956.02 km) |
| Keystone to Sangeorz-Bai | 5,544.18 mi (8,922.50 km) |
| Keystone to Sannicolau Mare | 5,422.60 mi (8,726.83 km) |
| Keystone to Santana | 5,450.07 mi (8,771.04 km) |
| Keystone to Satu Mare | 5,457.62 mi (8,783.20 km) |
| Keystone to Scobinti | 5,633.04 mi (9,065.50 km) |
| Keystone to Scornicesti | 5,639.81 mi (9,076.40 km) |
| Keystone to Sebes | 5,549.31 mi (8,930.75 km) |
| Keystone to Seini | 5,474.96 mi (8,811.10 km) |
| Keystone to Sfantu-Gheorghe | 5,643.67 mi (9,082.62 km) |
| Keystone to Sibiu | 5,579.26 mi (8,978.95 km) |
| Keystone to Sighetu Marmatiei | 5,492.89 mi (8,839.95 km) |
| Keystone to Sighisoara | 5,590.20 mi (8,996.56 km) |
| Keystone to Simeria | 5,530.00 mi (8,899.68 km) |
| Keystone to Sinaia | 5,652.93 mi (9,097.51 km) |
