| Slidell to Popovo | 5,937.88 mi (9,556.09 km) |
| Slidell to Provadia | 5,991.88 mi (9,643.00 km) |
| Slidell to Radnevo | 5,971.56 mi (9,610.29 km) |
| Slidell to Radomir | 5,840.78 mi (9,399.83 km) |
| Slidell to Rakitovo | 5,910.61 mi (9,512.21 km) |
| Slidell to Rakovski | 5,933.33 mi (9,548.77 km) |
| Slidell to Razgrad | 5,940.95 mi (9,561.04 km) |
| Slidell to Razlog | 5,889.64 mi (9,478.46 km) |
| Slidell to Ruse | 5,906.49 mi (9,505.58 km) |
| Slidell to Samokov | 5,874.28 mi (9,453.74 km) |
| Slidell to Sandanski | 5,895.23 mi (9,487.46 km) |
| Slidell to Sevlievo | 5,907.74 mi (9,507.59 km) |
| Slidell to Shumen | 5,968.07 mi (9,604.69 km) |
| Slidell to Silistra | 5,944.06 mi (9,566.05 km) |
| Slidell to Sliven | 5,970.78 mi (9,609.04 km) |
