| Rapperswil-Jona to Karlovo | 841.65 mi (1,354.51 km) |
| Rapperswil-Jona to Karnobat | 940.80 mi (1,514.08 km) |
| Rapperswil-Jona to Kavarna | 980.54 mi (1,578.03 km) |
| Rapperswil-Jona to Kazanlak | 869.28 mi (1,398.97 km) |
| Rapperswil-Jona to Knezha | 782.86 mi (1,259.90 km) |
| Rapperswil-Jona to Kostinbrod | 764.73 mi (1,230.71 km) |
| Rapperswil-Jona to Kozloduy | 758.93 mi (1,221.37 km) |
| Rapperswil-Jona to Kyustendil | 759.55 mi (1,222.37 km) |
| Rapperswil-Jona to Levski | 834.66 mi (1,343.25 km) |
| Rapperswil-Jona to Lom | 735.09 mi (1,183.01 km) |
| Rapperswil-Jona to Lovech | 822.41 mi (1,323.54 km) |
| Rapperswil-Jona to Lukovit | 795.45 mi (1,280.15 km) |
| Rapperswil-Jona to Lyaskovets | 869.03 mi (1,398.57 km) |
| Rapperswil-Jona to Mezdra | 775.84 mi (1,248.59 km) |
| Rapperswil-Jona to Momchilgrad | 906.56 mi (1,458.97 km) |
