| Dongen to Smolyan | 1,161.04 mi (1,868.51 km) |
| Dongen to Sofia | 1,057.13 mi (1,701.28 km) |
| Dongen to Sopot | 1,113.54 mi (1,792.07 km) |
| Dongen to Sozopol | 1,239.42 mi (1,994.66 km) |
| Dongen to Sredets | 1,222.50 mi (1,967.42 km) |
| Dongen to Stamboliyski | 1,128.90 mi (1,816.80 km) |
| Dongen to Stara Zagora | 1,158.08 mi (1,863.75 km) |
| Dongen to Svilengrad | 1,209.57 mi (1,946.62 km) |
| Dongen to Svishtov | 1,094.86 mi (1,762.00 km) |
| Dongen to Targovishte | 1,159.37 mi (1,865.82 km) |
| Dongen to Teteven | 1,082.94 mi (1,742.82 km) |
| Dongen to Troyan | 1,101.80 mi (1,773.18 km) |
| Dongen to Tryavna | 1,133.01 mi (1,823.40 km) |
| Dongen to Tutrakan | 1,127.89 mi (1,815.16 km) |
| Dongen to Varna | 1,214.32 mi (1,954.26 km) |
