| Zwolle to Smolyan | 1,150.39 mi (1,851.38 km) |
| Zwolle to Sofia | 1,046.10 mi (1,683.54 km) |
| Zwolle to Sopot | 1,099.08 mi (1,768.81 km) |
| Zwolle to Sozopol | 1,219.12 mi (1,961.99 km) |
| Zwolle to Sredets | 1,203.48 mi (1,936.81 km) |
| Zwolle to Stamboliyski | 1,116.81 mi (1,797.33 km) |
| Zwolle to Stara Zagora | 1,142.25 mi (1,838.27 km) |
| Zwolle to Svilengrad | 1,194.71 mi (1,922.69 km) |
| Zwolle to Svishtov | 1,075.42 mi (1,730.72 km) |
| Zwolle to Targovishte | 1,138.56 mi (1,832.34 km) |
| Zwolle to Teteven | 1,068.70 mi (1,719.91 km) |
| Zwolle to Troyan | 1,086.58 mi (1,748.69 km) |
| Zwolle to Tryavna | 1,115.99 mi (1,796.02 km) |
| Zwolle to Tutrakan | 1,104.09 mi (1,776.86 km) |
| Zwolle to Varna | 1,190.89 mi (1,916.55 km) |
