| Guernica y Luno to Smolyan | 1,394.06 mi (2,243.52 km) |
| Guernica y Luno to Sofia | 1,308.85 mi (2,106.40 km) |
| Guernica y Luno to Sopot | 1,380.31 mi (2,221.40 km) |
| Guernica y Luno to Sozopol | 1,530.57 mi (2,463.21 km) |
| Guernica y Luno to Sredets | 1,506.69 mi (2,424.79 km) |
| Guernica y Luno to Stamboliyski | 1,376.91 mi (2,215.92 km) |
| Guernica y Luno to Stara Zagora | 1,428.22 mi (2,298.49 km) |
| Guernica y Luno to Svilengrad | 1,466.08 mi (2,359.43 km) |
| Guernica y Luno to Svishtov | 1,398.38 mi (2,250.47 km) |
| Guernica y Luno to Targovishte | 1,463.62 mi (2,355.47 km) |
| Guernica y Luno to Teteven | 1,352.77 mi (2,177.07 km) |
| Guernica y Luno to Troyan | 1,375.58 mi (2,213.79 km) |
| Guernica y Luno to Tryavna | 1,414.75 mi (2,276.83 km) |
| Guernica y Luno to Tutrakan | 1,456.33 mi (2,343.74 km) |
| Guernica y Luno to Varna | 1,530.02 mi (2,462.33 km) |
