| Willoughby to Karditsa | 5,060.46 mi (8,144.03 km) |
| Willoughby to Kastoria | 4,982.81 mi (8,019.06 km) |
| Willoughby to Katerini | 5,043.47 mi (8,116.67 km) |
| Willoughby to Keratsini | 5,193.17 mi (8,357.59 km) |
| Willoughby to Kerkyra | 4,967.62 mi (7,994.61 km) |
| Willoughby to Kiato | 5,155.79 mi (8,297.45 km) |
| Willoughby to Kifisia | 5,195.93 mi (8,362.03 km) |
| Willoughby to Kilkis | 5,025.78 mi (8,088.21 km) |
| Willoughby to Komotini | 5,120.27 mi (8,240.28 km) |
| Willoughby to Korinthos | 5,166.34 mi (8,314.42 km) |
| Willoughby to Koropi | 5,206.66 mi (8,379.32 km) |
| Willoughby to Korydallos | 5,193.76 mi (8,358.54 km) |
| Willoughby to Kos | 5,391.39 mi (8,676.60 km) |
| Willoughby to Kozani | 5,013.24 mi (8,068.03 km) |
| Willoughby to Lagos | 5,106.61 mi (8,218.29 km) |
