| Lake Charles to Popovo | 6,074.40 mi (9,775.80 km) |
| Lake Charles to Provadia | 6,127.22 mi (9,860.82 km) |
| Lake Charles to Radnevo | 6,110.58 mi (9,834.03 km) |
| Lake Charles to Radomir | 5,982.90 mi (9,628.55 km) |
| Lake Charles to Rakitovo | 6,052.53 mi (9,740.61 km) |
| Lake Charles to Rakovski | 6,073.57 mi (9,774.47 km) |
| Lake Charles to Razgrad | 6,076.74 mi (9,779.57 km) |
| Lake Charles to Razlog | 6,032.50 mi (9,708.37 km) |
| Lake Charles to Ruse | 6,042.39 mi (9,724.29 km) |
| Lake Charles to Samokov | 6,016.12 mi (9,682.00 km) |
| Lake Charles to Sandanski | 6,038.94 mi (9,718.73 km) |
| Lake Charles to Sevlievo | 6,046.30 mi (9,730.59 km) |
| Lake Charles to Shumen | 6,103.85 mi (9,823.20 km) |
| Lake Charles to Silistra | 6,077.72 mi (9,781.15 km) |
| Lake Charles to Sliven | 6,108.53 mi (9,830.73 km) |
