| Irigny to Popovo | 1,063.79 mi (1,712.01 km) |
| Irigny to Provadia | 1,124.97 mi (1,810.46 km) |
| Irigny to Radnevo | 1,071.67 mi (1,724.68 km) |
| Irigny to Radomir | 922.61 mi (1,484.79 km) |
| Irigny to Rakitovo | 990.62 mi (1,594.25 km) |
| Irigny to Rakovski | 1,025.43 mi (1,650.27 km) |
| Irigny to Razgrad | 1,074.03 mi (1,728.49 km) |
| Irigny to Razlog | 963.75 mi (1,551.00 km) |
| Irigny to Ruse | 1,041.70 mi (1,676.45 km) |
| Irigny to Samokov | 956.65 mi (1,539.57 km) |
| Irigny to Sandanski | 963.38 mi (1,550.41 km) |
| Irigny to Sevlievo | 1,016.21 mi (1,635.43 km) |
| Irigny to Shumen | 1,098.87 mi (1,768.46 km) |
| Irigny to Silistra | 1,099.86 mi (1,770.05 km) |
| Irigny to Sliven | 1,082.28 mi (1,741.76 km) |
