| Gardner to Smolyan | 5,710.84 mi (9,190.71 km) |
| Gardner to Sofia | 5,606.56 mi (9,022.89 km) |
| Gardner to Sopot | 5,658.78 mi (9,106.93 km) |
| Gardner to Sozopol | 5,771.68 mi (9,288.62 km) |
| Gardner to Sredets | 5,758.23 mi (9,266.97 km) |
| Gardner to Stamboliyski | 5,677.25 mi (9,136.65 km) |
| Gardner to Stara Zagora | 5,700.92 mi (9,174.75 km) |
| Gardner to Svilengrad | 5,753.95 mi (9,260.08 km) |
| Gardner to Svishtov | 5,630.58 mi (9,061.54 km) |
| Gardner to Targovishte | 5,691.05 mi (9,158.86 km) |
| Gardner to Teteven | 5,628.56 mi (9,058.30 km) |
| Gardner to Troyan | 5,645.87 mi (9,086.15 km) |
| Gardner to Tryavna | 5,673.72 mi (9,130.97 km) |
| Gardner to Tutrakan | 5,651.17 mi (9,094.67 km) |
| Gardner to Varna | 5,737.40 mi (9,233.45 km) |
