| Igdir to Popovo | 947.74 mi (1,525.25 km) |
| Igdir to Provadia | 886.32 mi (1,426.40 km) |
| Igdir to Radnevo | 955.15 mi (1,537.17 km) |
| Igdir to Radomir | 1,108.00 mi (1,783.16 km) |
| Igdir to Rakitovo | 1,048.90 mi (1,688.04 km) |
| Igdir to Rakovski | 1,004.48 mi (1,616.55 km) |
| Igdir to Razgrad | 935.66 mi (1,505.80 km) |
| Igdir to Razlog | 1,080.50 mi (1,738.90 km) |
| Igdir to Ruse | 966.76 mi (1,555.85 km) |
| Igdir to Samokov | 1,076.60 mi (1,732.62 km) |
| Igdir to Sandanski | 1,090.12 mi (1,754.38 km) |
| Igdir to Sevlievo | 1,000.94 mi (1,610.86 km) |
| Igdir to Shumen | 912.26 mi (1,468.14 km) |
| Igdir to Silistra | 907.07 mi (1,459.79 km) |
| Igdir to Sliven | 937.05 mi (1,508.04 km) |
