| Seaford to Karlovo | 1,290.05 mi (2,076.14 km) |
| Seaford to Karnobat | 1,382.36 mi (2,224.70 km) |
| Seaford to Kavarna | 1,410.73 mi (2,270.35 km) |
| Seaford to Kazanlak | 1,316.02 mi (2,117.93 km) |
| Seaford to Knezha | 1,226.95 mi (1,974.58 km) |
| Seaford to Kostinbrod | 1,216.80 mi (1,958.26 km) |
| Seaford to Kozloduy | 1,201.70 mi (1,933.95 km) |
| Seaford to Kyustendil | 1,216.27 mi (1,957.40 km) |
| Seaford to Levski | 1,276.34 mi (2,054.08 km) |
| Seaford to Lom | 1,179.20 mi (1,897.73 km) |
| Seaford to Lovech | 1,267.41 mi (2,039.70 km) |
| Seaford to Lukovit | 1,241.73 mi (1,998.38 km) |
| Seaford to Lyaskovets | 1,311.01 mi (2,109.87 km) |
| Seaford to Mezdra | 1,224.03 mi (1,969.88 km) |
| Seaford to Momchilgrad | 1,360.03 mi (2,188.75 km) |
