| Galesburg to Smolyan | 5,439.18 mi (8,753.52 km) |
| Galesburg to Sofia | 5,334.97 mi (8,585.81 km) |
| Galesburg to Sopot | 5,388.22 mi (8,671.50 km) |
| Galesburg to Sozopol | 5,503.30 mi (8,856.70 km) |
| Galesburg to Sredets | 5,489.35 mi (8,834.25 km) |
| Galesburg to Stamboliyski | 5,406.00 mi (8,700.12 km) |
| Galesburg to Stara Zagora | 5,430.85 mi (8,740.11 km) |
| Galesburg to Svilengrad | 5,483.64 mi (8,825.07 km) |
| Galesburg to Svishtov | 5,361.50 mi (8,628.49 km) |
| Galesburg to Targovishte | 5,422.60 mi (8,726.83 km) |
| Galesburg to Teteven | 5,357.90 mi (8,622.70 km) |
| Galesburg to Troyan | 5,375.52 mi (8,651.06 km) |
| Galesburg to Tryavna | 5,403.97 mi (8,696.86 km) |
| Galesburg to Tutrakan | 5,383.62 mi (8,664.09 km) |
| Galesburg to Varna | 5,470.07 mi (8,803.22 km) |
