| Opelousas to Smolyan | 6,033.13 mi (9,709.39 km) |
| Opelousas to Sofia | 5,929.98 mi (9,543.38 km) |
| Opelousas to Sopot | 5,988.07 mi (9,636.87 km) |
| Opelousas to Sozopol | 6,112.56 mi (9,837.22 km) |
| Opelousas to Sredets | 6,096.48 mi (9,811.34 km) |
| Opelousas to Stamboliyski | 6,002.30 mi (9,659.77 km) |
| Opelousas to Stara Zagora | 6,032.81 mi (9,708.86 km) |
| Opelousas to Svilengrad | 6,084.14 mi (9,791.48 km) |
| Opelousas to Svishtov | 5,968.53 mi (9,605.42 km) |
| Opelousas to Targovishte | 6,032.07 mi (9,707.68 km) |
| Opelousas to Teteven | 5,957.44 mi (9,587.57 km) |
| Opelousas to Troyan | 5,976.49 mi (9,618.23 km) |
| Opelousas to Tryavna | 6,007.65 mi (9,668.38 km) |
| Opelousas to Tutrakan | 5,997.20 mi (9,651.55 km) |
| Opelousas to Varna | 6,084.03 mi (9,791.31 km) |
