| Irving to Karlovo | 6,051.47 mi (9,738.91 km) |
| Irving to Karnobat | 6,130.06 mi (9,865.37 km) |
| Irving to Kavarna | 6,137.26 mi (9,876.96 km) |
| Irving to Kazanlak | 6,074.24 mi (9,775.55 km) |
| Irving to Knezha | 5,984.05 mi (9,630.40 km) |
| Irving to Kostinbrod | 5,984.98 mi (9,631.90 km) |
| Irving to Kozloduy | 5,957.87 mi (9,588.27 km) |
| Irving to Kyustendil | 5,990.40 mi (9,640.61 km) |
| Irving to Levski | 6,028.23 mi (9,701.50 km) |
| Irving to Lom | 5,937.92 mi (9,556.16 km) |
| Irving to Lovech | 6,024.50 mi (9,695.50 km) |
| Irving to Lukovit | 6,001.44 mi (9,658.39 km) |
| Irving to Lyaskovets | 6,062.06 mi (9,755.94 km) |
| Irving to Mezdra | 5,986.86 mi (9,634.92 km) |
| Irving to Momchilgrad | 6,127.59 mi (9,861.40 km) |
