| Tulsa to Karlovo | 5,837.84 mi (9,395.09 km) |
| Tulsa to Karnobat | 5,914.56 mi (9,518.57 km) |
| Tulsa to Kavarna | 5,919.80 mi (9,527.00 km) |
| Tulsa to Kazanlak | 5,860.13 mi (9,430.96 km) |
| Tulsa to Knezha | 5,770.02 mi (9,285.96 km) |
| Tulsa to Kostinbrod | 5,772.52 mi (9,289.98 km) |
| Tulsa to Kozloduy | 5,743.80 mi (9,243.76 km) |
| Tulsa to Kyustendil | 5,779.08 mi (9,300.53 km) |
| Tulsa to Levski | 5,813.47 mi (9,355.88 km) |
| Tulsa to Lom | 5,724.21 mi (9,212.23 km) |
| Tulsa to Lovech | 5,810.36 mi (9,350.88 km) |
| Tulsa to Lukovit | 5,787.70 mi (9,314.40 km) |
| Tulsa to Lyaskovets | 5,847.11 mi (9,410.02 km) |
| Tulsa to Mezdra | 5,773.57 mi (9,291.67 km) |
| Tulsa to Momchilgrad | 5,914.72 mi (9,518.83 km) |
