| Irving to Devnya | 6,121.56 mi (9,851.70 km) |
| Irving to Dimitrovgrad | 6,109.10 mi (9,831.64 km) |
| Irving to Dobrich | 6,113.33 mi (9,838.45 km) |
| Irving to Dospat | 6,075.79 mi (9,778.04 km) |
| Irving to Dupnitsa | 6,007.49 mi (9,668.12 km) |
| Irving to Elhovo | 6,138.27 mi (9,878.59 km) |
| Irving to Etropole | 6,012.94 mi (9,676.89 km) |
| Irving to Gabrovo | 6,059.68 mi (9,752.11 km) |
| Irving to Gorna Oryahovitsa | 6,059.83 mi (9,752.36 km) |
| Irving to Gotse Delchev | 6,063.63 mi (9,758.47 km) |
| Irving to Harmanli | 6,125.69 mi (9,858.35 km) |
| Irving to Haskovo | 6,113.58 mi (9,838.85 km) |
| Irving to Ihtiman | 6,025.13 mi (9,696.52 km) |
| Irving to Isperih | 6,071.16 mi (9,770.58 km) |
| Irving to Kardzhali | 6,120.07 mi (9,849.30 km) |
