| Webster Groves to Karditsa | 5,555.89 mi (8,941.34 km) |
| Webster Groves to Kastoria | 5,476.79 mi (8,814.04 km) |
| Webster Groves to Katerini | 5,536.22 mi (8,909.68 km) |
| Webster Groves to Keratsini | 5,688.97 mi (9,155.52 km) |
| Webster Groves to Kerkyra | 5,465.20 mi (8,795.38 km) |
| Webster Groves to Kiato | 5,652.72 mi (9,097.18 km) |
| Webster Groves to Kifisia | 5,691.22 mi (9,159.14 km) |
| Webster Groves to Kilkis | 5,516.45 mi (8,877.87 km) |
| Webster Groves to Komotini | 5,606.70 mi (9,023.11 km) |
| Webster Groves to Korinthos | 5,663.16 mi (9,113.97 km) |
| Webster Groves to Koropi | 5,702.24 mi (9,176.87 km) |
| Webster Groves to Korydallos | 5,689.49 mi (9,156.34 km) |
| Webster Groves to Kos | 5,883.98 mi (9,469.36 km) |
| Webster Groves to Kozani | 5,506.94 mi (8,862.57 km) |
| Webster Groves to Lagos | 5,593.75 mi (9,002.27 km) |
