| Xanten to Smolyan | 1,105.82 mi (1,779.64 km) |
| Xanten to Sofia | 1,001.67 mi (1,612.03 km) |
| Xanten to Sopot | 1,056.62 mi (1,700.47 km) |
| Xanten to Sozopol | 1,180.27 mi (1,899.46 km) |
| Xanten to Sredets | 1,163.82 mi (1,872.98 km) |
| Xanten to Stamboliyski | 1,073.02 mi (1,726.85 km) |
| Xanten to Stara Zagora | 1,100.62 mi (1,771.28 km) |
| Xanten to Svilengrad | 1,152.54 mi (1,854.83 km) |
| Xanten to Svishtov | 1,035.95 mi (1,667.20 km) |
| Xanten to Targovishte | 1,099.99 mi (1,770.26 km) |
| Xanten to Teteven | 1,026.10 mi (1,651.34 km) |
| Xanten to Troyan | 1,044.56 mi (1,681.06 km) |
| Xanten to Tryavna | 1,075.06 mi (1,730.14 km) |
| Xanten to Tutrakan | 1,067.46 mi (1,717.90 km) |
| Xanten to Varna | 1,154.05 mi (1,857.26 km) |
