| Oudenaarde to Sofia | 1,085.21 mi (1,746.48 km) |
| Oudenaarde to Sopot | 1,144.54 mi (1,841.96 km) |
| Oudenaarde to Sozopol | 1,275.29 mi (2,052.37 km) |
| Oudenaarde to Sredets | 1,257.26 mi (2,023.36 km) |
| Oudenaarde to Stamboliyski | 1,157.65 mi (1,863.05 km) |
| Oudenaarde to Stara Zagora | 1,190.17 mi (1,915.39 km) |
| Oudenaarde to Svilengrad | 1,240.56 mi (1,996.50 km) |
| Oudenaarde to Svishtov | 1,130.49 mi (1,819.35 km) |
| Oudenaarde to Targovishte | 1,195.97 mi (1,924.73 km) |
| Oudenaarde to Teteven | 1,113.88 mi (1,792.61 km) |
| Oudenaarde to Troyan | 1,133.56 mi (1,824.29 km) |
| Oudenaarde to Tryavna | 1,166.28 mi (1,876.95 km) |
| Oudenaarde to Tutrakan | 1,167.30 mi (1,878.59 km) |
| Oudenaarde to Varna | 1,253.09 mi (2,016.66 km) |
| Oudenaarde to Veliki Preslav | 1,208.95 mi (1,945.61 km) |
