| Saint-Omer to Smolyan | 1,239.27 mi (1,994.42 km) |
| Saint-Omer to Sofia | 1,136.64 mi (1,829.24 km) |
| Saint-Omer to Sopot | 1,196.96 mi (1,926.33 km) |
| Saint-Omer to Sozopol | 1,329.25 mi (2,139.23 km) |
| Saint-Omer to Sredets | 1,310.88 mi (2,109.65 km) |
| Saint-Omer to Stamboliyski | 1,209.23 mi (1,946.07 km) |
| Saint-Omer to Stara Zagora | 1,242.93 mi (2,000.31 km) |
| Saint-Omer to Svilengrad | 1,292.89 mi (2,080.71 km) |
| Saint-Omer to Svishtov | 1,184.50 mi (1,906.27 km) |
| Saint-Omer to Targovishte | 1,250.24 mi (2,012.06 km) |
| Saint-Omer to Teteven | 1,166.31 mi (1,877.00 km) |
| Saint-Omer to Troyan | 1,186.26 mi (1,909.11 km) |
| Saint-Omer to Tryavna | 1,219.48 mi (1,962.56 km) |
| Saint-Omer to Tutrakan | 1,222.44 mi (1,967.33 km) |
| Saint-Omer to Varna | 1,307.98 mi (2,104.99 km) |
