| Missoula to Smolyan | 5,821.24 mi (9,368.38 km) |
| Missoula to Sofia | 5,720.45 mi (9,206.17 km) |
| Missoula to Sopot | 5,756.71 mi (9,264.54 km) |
| Missoula to Sozopol | 5,837.22 mi (9,394.09 km) |
| Missoula to Sredets | 5,830.46 mi (9,383.23 km) |
| Missoula to Stamboliyski | 5,783.49 mi (9,307.63 km) |
| Missoula to Stara Zagora | 5,790.68 mi (9,319.19 km) |
| Missoula to Svilengrad | 5,844.45 mi (9,405.74 km) |
| Missoula to Svishtov | 5,710.76 mi (9,190.58 km) |
| Missoula to Targovishte | 5,760.87 mi (9,271.23 km) |
| Missoula to Teteven | 5,729.14 mi (9,220.16 km) |
| Missoula to Troyan | 5,741.58 mi (9,240.19 km) |
| Missoula to Tryavna | 5,760.46 mi (9,270.57 km) |
| Missoula to Tutrakan | 5,711.89 mi (9,192.39 km) |
| Missoula to Varna | 5,791.84 mi (9,321.06 km) |
