| Tonawanda to Karlovo | 4,866.81 mi (7,832.37 km) |
| Tonawanda to Karnobat | 4,949.97 mi (7,966.21 km) |
| Tonawanda to Kavarna | 4,963.01 mi (7,987.19 km) |
| Tonawanda to Kazanlak | 4,890.70 mi (7,870.82 km) |
| Tonawanda to Knezha | 4,800.50 mi (7,725.66 km) |
| Tonawanda to Kostinbrod | 4,797.77 mi (7,721.26 km) |
| Tonawanda to Kozloduy | 4,774.49 mi (7,683.80 km) |
| Tonawanda to Kyustendil | 4,800.78 mi (7,726.11 km) |
| Tonawanda to Levski | 4,846.43 mi (7,799.57 km) |
| Tonawanda to Lom | 4,753.69 mi (7,650.33 km) |
| Tonawanda to Lovech | 4,841.12 mi (7,791.03 km) |
| Tonawanda to Lukovit | 4,817.15 mi (7,752.46 km) |
| Tonawanda to Lyaskovets | 4,880.66 mi (7,854.66 km) |
| Tonawanda to Mezdra | 4,801.51 mi (7,727.28 km) |
| Tonawanda to Momchilgrad | 4,940.96 mi (7,951.70 km) |
