| Bad Honnef am Rhein to Kastoria | 971.88 mi (1,564.09 km) |
| Bad Honnef am Rhein to Katerini | 1,026.81 mi (1,652.48 km) |
| Bad Honnef am Rhein to Keratsini | 1,188.08 mi (1,912.02 km) |
| Bad Honnef am Rhein to Kerkyra | 978.34 mi (1,574.49 km) |
| Bad Honnef am Rhein to Kiato | 1,157.46 mi (1,862.75 km) |
| Bad Honnef am Rhein to Kifisia | 1,188.31 mi (1,912.40 km) |
| Bad Honnef am Rhein to Kilkis | 1,002.73 mi (1,613.74 km) |
| Bad Honnef am Rhein to Komotini | 1,090.83 mi (1,755.52 km) |
| Bad Honnef am Rhein to Korinthos | 1,167.17 mi (1,878.38 km) |
| Bad Honnef am Rhein to Koropi | 1,200.22 mi (1,931.57 km) |
| Bad Honnef am Rhein to Korydallos | 1,188.26 mi (1,912.32 km) |
| Bad Honnef am Rhein to Kos | 1,372.10 mi (2,208.17 km) |
| Bad Honnef am Rhein to Kozani | 1,000.70 mi (1,610.48 km) |
| Bad Honnef am Rhein to Lagos | 1,077.64 mi (1,734.29 km) |
| Bad Honnef am Rhein to Lamia | 1,097.96 mi (1,767.00 km) |
