| Kalispell to Smolyan | 5,747.84 mi (9,250.26 km) |
| Kalispell to Sofia | 5,647.46 mi (9,088.71 km) |
| Kalispell to Sopot | 5,682.80 mi (9,145.58 km) |
| Kalispell to Sozopol | 5,761.46 mi (9,272.17 km) |
| Kalispell to Sredets | 5,755.06 mi (9,261.87 km) |
| Kalispell to Stamboliyski | 5,709.95 mi (9,189.28 km) |
| Kalispell to Stara Zagora | 5,716.26 mi (9,199.43 km) |
| Kalispell to Svilengrad | 5,769.96 mi (9,285.85 km) |
| Kalispell to Svishtov | 5,636.02 mi (9,070.29 km) |
| Kalispell to Targovishte | 5,685.49 mi (9,149.92 km) |
| Kalispell to Teteven | 5,655.42 mi (9,101.52 km) |
| Kalispell to Troyan | 5,667.58 mi (9,121.09 km) |
| Kalispell to Tryavna | 5,685.95 mi (9,150.65 km) |
| Kalispell to Tutrakan | 5,636.15 mi (9,070.50 km) |
| Kalispell to Varna | 5,715.62 mi (9,198.40 km) |
