| Geldern to Popovo | 1,082.73 mi (1,742.48 km) |
| Geldern to Provadia | 1,137.37 mi (1,830.42 km) |
| Geldern to Radnevo | 1,117.63 mi (1,798.65 km) |
| Geldern to Radomir | 994.26 mi (1,600.11 km) |
| Geldern to Rakitovo | 1,063.08 mi (1,710.86 km) |
| Geldern to Rakovski | 1,081.41 mi (1,740.35 km) |
| Geldern to Razgrad | 1,086.14 mi (1,747.98 km) |
| Geldern to Razlog | 1,045.49 mi (1,682.55 km) |
| Geldern to Ruse | 1,051.64 mi (1,692.45 km) |
| Geldern to Samokov | 1,026.65 mi (1,652.24 km) |
| Geldern to Sandanski | 1,054.52 mi (1,697.08 km) |
| Geldern to Sevlievo | 1,053.31 mi (1,695.14 km) |
| Geldern to Shumen | 1,113.25 mi (1,791.61 km) |
| Geldern to Silistra | 1,092.01 mi (1,757.42 km) |
| Geldern to Sliven | 1,115.77 mi (1,795.66 km) |
