| Straelen to Popovo | 1,083.41 mi (1,743.58 km) |
| Straelen to Provadia | 1,138.19 mi (1,831.74 km) |
| Straelen to Radnevo | 1,117.98 mi (1,799.21 km) |
| Straelen to Radomir | 994.13 mi (1,599.89 km) |
| Straelen to Rakitovo | 1,063.01 mi (1,710.75 km) |
| Straelen to Rakovski | 1,081.58 mi (1,740.64 km) |
| Straelen to Razgrad | 1,086.92 mi (1,749.23 km) |
| Straelen to Razlog | 1,045.28 mi (1,682.21 km) |
| Straelen to Ruse | 1,052.41 mi (1,693.70 km) |
| Straelen to Samokov | 1,026.58 mi (1,652.11 km) |
| Straelen to Sandanski | 1,054.19 mi (1,696.55 km) |
| Straelen to Sevlievo | 1,053.71 mi (1,695.79 km) |
| Straelen to Shumen | 1,114.03 mi (1,792.85 km) |
| Straelen to Silistra | 1,093.07 mi (1,759.12 km) |
| Straelen to Sliven | 1,116.29 mi (1,796.49 km) |
