| Cheyenne to Smolyan | 5,907.93 mi (9,507.90 km) |
| Cheyenne to Sofia | 5,804.23 mi (9,341.01 km) |
| Cheyenne to Sopot | 5,849.55 mi (9,413.95 km) |
| Cheyenne to Sozopol | 5,948.42 mi (9,573.06 km) |
| Cheyenne to Sredets | 5,937.98 mi (9,556.25 km) |
| Cheyenne to Stamboliyski | 5,872.07 mi (9,450.19 km) |
| Cheyenne to Stara Zagora | 5,888.30 mi (9,476.30 km) |
| Cheyenne to Svilengrad | 5,942.20 mi (9,563.05 km) |
| Cheyenne to Svishtov | 5,812.77 mi (9,354.76 km) |
| Cheyenne to Targovishte | 5,869.00 mi (9,445.24 km) |
| Cheyenne to Teteven | 5,820.27 mi (9,366.81 km) |
| Cheyenne to Troyan | 5,835.48 mi (9,391.29 km) |
| Cheyenne to Tryavna | 5,859.42 mi (9,429.82 km) |
| Cheyenne to Tutrakan | 5,824.44 mi (9,373.53 km) |
| Cheyenne to Varna | 5,908.58 mi (9,508.94 km) |
