| Fort Collins to Sucha Beskidzka | 5,353.02 mi (8,614.86 km) |
| Fort Collins to Suchanino | 5,083.40 mi (8,180.95 km) |
| Fort Collins to Sulechow | 5,117.26 mi (8,235.44 km) |
| Fort Collins to Sulecin | 5,084.44 mi (8,182.61 km) |
| Fort Collins to Sulejowek | 5,266.14 mi (8,475.03 km) |
| Fort Collins to Suwalki | 5,208.70 mi (8,382.60 km) |
| Fort Collins to Swarzedz | 5,142.14 mi (8,275.47 km) |
| Fort Collins to Swidnica | 5,205.33 mi (8,377.17 km) |
| Fort Collins to Swidnik | 5,359.53 mi (8,625.32 km) |
| Fort Collins to Swidwin | 5,035.52 mi (8,103.89 km) |
| Fort Collins to Swiebodzice | 5,200.09 mi (8,368.74 km) |
| Fort Collins to Swiecie | 5,127.63 mi (8,252.13 km) |
| Fort Collins to Swiedbodzin | 5,106.42 mi (8,217.98 km) |
| Fort Collins to Swietochlowice | 5,304.69 mi (8,537.07 km) |
| Fort Collins to Swinoujscie | 4,986.23 mi (8,024.56 km) |
