| Differdange to Popovo | 1,054.01 mi (1,696.27 km) |
| Differdange to Provadia | 1,111.76 mi (1,789.21 km) |
| Differdange to Radnevo | 1,080.38 mi (1,738.70 km) |
| Differdange to Radomir | 946.29 mi (1,522.90 km) |
| Differdange to Rakitovo | 1,016.14 mi (1,635.32 km) |
| Differdange to Rakovski | 1,040.22 mi (1,674.07 km) |
| Differdange to Razgrad | 1,059.81 mi (1,705.60 km) |
| Differdange to Razlog | 995.21 mi (1,601.64 km) |
| Differdange to Ruse | 1,025.45 mi (1,650.30 km) |
| Differdange to Samokov | 979.85 mi (1,576.92 km) |
| Differdange to Sandanski | 1,001.36 mi (1,611.54 km) |
| Differdange to Sevlievo | 1,017.93 mi (1,638.20 km) |
| Differdange to Shumen | 1,086.59 mi (1,748.70 km) |
| Differdange to Silistra | 1,072.65 mi (1,726.26 km) |
| Differdange to Sliven | 1,082.67 mi (1,742.39 km) |
