| Langenfeld to Popovo | 1,047.18 mi (1,685.28 km) |
| Langenfeld to Provadia | 1,102.22 mi (1,773.85 km) |
| Langenfeld to Radnevo | 1,081.24 mi (1,740.08 km) |
| Langenfeld to Radomir | 956.89 mi (1,539.97 km) |
| Langenfeld to Rakitovo | 1,025.83 mi (1,650.91 km) |
| Langenfeld to Rakovski | 1,044.63 mi (1,681.17 km) |
| Langenfeld to Razgrad | 1,050.87 mi (1,691.21 km) |
| Langenfeld to Razlog | 1,007.99 mi (1,622.20 km) |
| Langenfeld to Ruse | 1,016.35 mi (1,635.66 km) |
| Langenfeld to Samokov | 989.39 mi (1,592.27 km) |
| Langenfeld to Sandanski | 1,016.83 mi (1,636.43 km) |
| Langenfeld to Sevlievo | 1,017.05 mi (1,636.79 km) |
| Langenfeld to Shumen | 1,077.96 mi (1,734.82 km) |
| Langenfeld to Silistra | 1,057.58 mi (1,702.01 km) |
| Langenfeld to Sliven | 1,079.78 mi (1,737.75 km) |
