| Irlam to Popovo | 1,474.07 mi (2,372.28 km) |
| Irlam to Provadia | 1,528.65 mi (2,460.13 km) |
| Irlam to Radnevo | 1,508.35 mi (2,427.45 km) |
| Irlam to Radomir | 1,382.31 mi (2,224.62 km) |
| Irlam to Rakitovo | 1,451.58 mi (2,336.10 km) |
| Irlam to Rakovski | 1,471.40 mi (2,367.99 km) |
| Irlam to Razgrad | 1,477.47 mi (2,377.75 km) |
| Irlam to Razlog | 1,432.86 mi (2,305.96 km) |
| Irlam to Ruse | 1,442.97 mi (2,322.23 km) |
| Irlam to Samokov | 1,415.13 mi (2,277.44 km) |
| Irlam to Sandanski | 1,440.80 mi (2,318.74 km) |
| Irlam to Sevlievo | 1,444.21 mi (2,324.23 km) |
| Irlam to Shumen | 1,504.58 mi (2,421.38 km) |
| Irlam to Silistra | 1,482.78 mi (2,386.30 km) |
| Irlam to Sliven | 1,506.93 mi (2,425.17 km) |
