| Lannion to Smolyan | 1,448.01 mi (2,330.34 km) |
| Lannion to Sofia | 1,349.57 mi (2,171.93 km) |
| Lannion to Sopot | 1,415.34 mi (2,277.77 km) |
| Lannion to Sozopol | 1,556.47 mi (2,504.89 km) |
| Lannion to Sredets | 1,535.86 mi (2,471.73 km) |
| Lannion to Stamboliyski | 1,422.12 mi (2,288.69 km) |
| Lannion to Stara Zagora | 1,462.94 mi (2,354.37 km) |
| Lannion to Svilengrad | 1,509.47 mi (2,429.26 km) |
| Lannion to Svishtov | 1,413.50 mi (2,274.80 km) |
| Lannion to Targovishte | 1,480.29 mi (2,382.29 km) |
| Lannion to Teteven | 1,385.16 mi (2,229.20 km) |
| Lannion to Troyan | 1,406.58 mi (2,263.67 km) |
| Lannion to Tryavna | 1,442.60 mi (2,321.64 km) |
| Lannion to Tutrakan | 1,458.98 mi (2,348.00 km) |
| Lannion to Varna | 1,541.95 mi (2,481.54 km) |
