| Gibsonton to Smolyan | 5,759.87 mi (9,269.62 km) |
| Gibsonton to Sofia | 5,659.88 mi (9,108.69 km) |
| Gibsonton to Sopot | 5,723.40 mi (9,210.92 km) |
| Gibsonton to Sozopol | 5,858.69 mi (9,428.65 km) |
| Gibsonton to Sredets | 5,839.90 mi (9,398.41 km) |
| Gibsonton to Stamboliyski | 5,732.66 mi (9,225.82 km) |
| Gibsonton to Stara Zagora | 5,770.21 mi (9,286.26 km) |
| Gibsonton to Svilengrad | 5,818.69 mi (9,364.28 km) |
| Gibsonton to Svishtov | 5,714.01 mi (9,195.80 km) |
| Gibsonton to Targovishte | 5,779.85 mi (9,301.77 km) |
| Gibsonton to Teteven | 5,692.88 mi (9,161.80 km) |
| Gibsonton to Troyan | 5,713.52 mi (9,195.03 km) |
| Gibsonton to Tryavna | 5,747.83 mi (9,250.24 km) |
| Gibsonton to Tutrakan | 5,751.42 mi (9,256.02 km) |
| Gibsonton to Varna | 5,837.32 mi (9,394.26 km) |
