| Ontario to Karlovo | 6,630.14 mi (10,670.18 km) |
| Ontario to Karnobat | 6,685.61 mi (10,759.44 km) |
| Ontario to Kavarna | 6,669.39 mi (10,733.34 km) |
| Ontario to Kazanlak | 6,646.96 mi (10,697.24 km) |
| Ontario to Knezha | 6,560.60 mi (10,558.27 km) |
| Ontario to Kostinbrod | 6,578.17 mi (10,586.54 km) |
| Ontario to Kozloduy | 6,534.80 mi (10,516.74 km) |
| Ontario to Kyustendil | 6,595.10 mi (10,613.78 km) |
| Ontario to Levski | 6,595.39 mi (10,614.25 km) |
| Ontario to Lom | 6,519.40 mi (10,491.96 km) |
| Ontario to Lovech | 6,598.60 mi (10,619.43 km) |
| Ontario to Lukovit | 6,580.53 mi (10,590.34 km) |
| Ontario to Lyaskovets | 6,626.04 mi (10,663.58 km) |
| Ontario to Mezdra | 6,571.31 mi (10,575.51 km) |
| Ontario to Momchilgrad | 6,712.13 mi (10,802.13 km) |
