| Slidell to Devnya | 5,995.57 mi (9,648.94 km) |
| Slidell to Dimitrovgrad | 5,969.03 mi (9,606.23 km) |
| Slidell to Dobrich | 5,990.33 mi (9,640.51 km) |
| Slidell to Dospat | 5,928.08 mi (9,540.32 km) |
| Slidell to Dupnitsa | 5,859.49 mi (9,429.93 km) |
| Slidell to Elhovo | 6,002.53 mi (9,660.15 km) |
| Slidell to Etropole | 5,871.43 mi (9,449.16 km) |
| Slidell to Gabrovo | 5,923.28 mi (9,532.59 km) |
| Slidell to Gorna Oryahovitsa | 5,926.32 mi (9,537.49 km) |
| Slidell to Gotse Delchev | 5,913.84 mi (9,517.40 km) |
| Slidell to Harmanli | 5,986.10 mi (9,633.69 km) |
| Slidell to Haskovo | 5,972.72 mi (9,612.17 km) |
| Slidell to Ihtiman | 5,880.67 mi (9,464.02 km) |
| Slidell to Isperih | 5,945.21 mi (9,567.90 km) |
| Slidell to Kardzhali | 5,976.85 mi (9,618.81 km) |
