| Franconville to Smolyan | 1,200.12 mi (1,931.41 km) |
| Franconville to Sofia | 1,099.86 mi (1,770.05 km) |
| Franconville to Sopot | 1,163.94 mi (1,873.19 km) |
| Franconville to Sozopol | 1,302.62 mi (2,096.37 km) |
| Franconville to Sredets | 1,282.64 mi (2,064.21 km) |
| Franconville to Stamboliyski | 1,172.64 mi (1,887.18 km) |
| Franconville to Stara Zagora | 1,211.12 mi (1,949.11 km) |
| Franconville to Svilengrad | 1,258.91 mi (2,026.01 km) |
| Franconville to Svishtov | 1,158.89 mi (1,865.06 km) |
| Franconville to Targovishte | 1,225.52 mi (1,972.29 km) |
| Franconville to Teteven | 1,133.53 mi (1,824.24 km) |
| Franconville to Troyan | 1,154.53 mi (1,858.03 km) |
| Franconville to Tryavna | 1,189.75 mi (1,914.72 km) |
| Franconville to Tutrakan | 1,202.60 mi (1,935.39 km) |
| Franconville to Varna | 1,286.29 mi (2,070.08 km) |
