| Urk to Smolyan | 1,173.62 mi (1,888.76 km) |
| Urk to Sofia | 1,069.33 mi (1,720.93 km) |
| Urk to Sopot | 1,122.42 mi (1,806.36 km) |
| Urk to Sozopol | 1,242.53 mi (1,999.66 km) |
| Urk to Sredets | 1,226.88 mi (1,974.48 km) |
| Urk to Stamboliyski | 1,140.09 mi (1,834.79 km) |
| Urk to Stara Zagora | 1,165.61 mi (1,875.87 km) |
| Urk to Svilengrad | 1,218.06 mi (1,960.27 km) |
| Urk to Svishtov | 1,098.82 mi (1,768.39 km) |
| Urk to Targovishte | 1,161.97 mi (1,870.01 km) |
| Urk to Teteven | 1,092.03 mi (1,757.46 km) |
| Urk to Troyan | 1,109.94 mi (1,786.27 km) |
| Urk to Tryavna | 1,139.38 mi (1,833.65 km) |
| Urk to Tutrakan | 1,127.47 mi (1,814.49 km) |
| Urk to Varna | 1,214.27 mi (1,954.18 km) |
