| Fort Collins to Sangeorgiu de Mures | 5,665.08 mi (9,117.06 km) |
| Fort Collins to Sangeorz-Bai | 5,625.34 mi (9,053.11 km) |
| Fort Collins to Sannicolau Mare | 5,579.74 mi (8,979.73 km) |
| Fort Collins to Santana | 5,590.63 mi (8,997.25 km) |
| Fort Collins to Satu Mare | 5,552.11 mi (8,935.26 km) |
| Fort Collins to Scobinti | 5,685.78 mi (9,150.38 km) |
| Fort Collins to Scornicesti | 5,777.88 mi (9,298.59 km) |
| Fort Collins to Sebes | 5,672.31 mi (9,128.70 km) |
| Fort Collins to Seini | 5,565.55 mi (8,956.89 km) |
| Fort Collins to Sfantu-Gheorghe | 5,740.50 mi (9,238.44 km) |
| Fort Collins to Sibiu | 5,698.28 mi (9,170.50 km) |
| Fort Collins to Sighetu Marmatiei | 5,572.51 mi (8,968.09 km) |
| Fort Collins to Sighisoara | 5,692.78 mi (9,161.65 km) |
| Fort Collins to Simeria | 5,662.18 mi (9,112.40 km) |
| Fort Collins to Sinaia | 5,762.79 mi (9,274.32 km) |
