| Irun to Devnya | 1,469.01 mi (2,364.14 km) |
| Irun to Dimitrovgrad | 1,387.47 mi (2,232.92 km) |
| Irun to Dobrich | 1,477.94 mi (2,378.52 km) |
| Irun to Dospat | 1,322.10 mi (2,127.71 km) |
| Irun to Dupnitsa | 1,260.15 mi (2,028.02 km) |
| Irun to Elhovo | 1,433.96 mi (2,307.74 km) |
| Irun to Etropole | 1,296.61 mi (2,086.70 km) |
| Irun to Gabrovo | 1,362.59 mi (2,192.87 km) |
| Irun to Gorna Oryahovitsa | 1,377.49 mi (2,216.86 km) |
| Irun to Gotse Delchev | 1,301.75 mi (2,094.96 km) |
| Irun to Harmanli | 1,404.31 mi (2,260.02 km) |
| Irun to Haskovo | 1,387.64 mi (2,233.19 km) |
| Irun to Ihtiman | 1,292.64 mi (2,080.31 km) |
| Irun to Isperih | 1,426.93 mi (2,296.41 km) |
| Irun to Kardzhali | 1,382.24 mi (2,224.50 km) |
