| Willoughby to Kavak | 5,514.23 mi (8,874.30 km) |
| Willoughby to Kayapinar | 5,822.72 mi (9,370.76 km) |
| Willoughby to Kayseri | 5,614.49 mi (9,035.65 km) |
| Willoughby to Kemalpasa | 5,323.52 mi (8,567.38 km) |
| Willoughby to Kemer | 5,534.58 mi (8,907.05 km) |
| Willoughby to Keskin | 5,498.05 mi (8,848.26 km) |
| Willoughby to Kilimli | 5,343.23 mi (8,599.10 km) |
| Willoughby to Kilis | 5,777.12 mi (9,297.37 km) |
| Willoughby to Kinik | 5,290.36 mi (8,514.01 km) |
| Willoughby to Kirikkale | 5,485.96 mi (8,828.80 km) |
| Willoughby to Kirkagac | 5,301.31 mi (8,531.63 km) |
| Willoughby to Kirklareli | 5,159.97 mi (8,304.18 km) |
| Willoughby to Kirsehir | 5,544.61 mi (8,923.19 km) |
| Willoughby to Kizilpinar | 5,210.09 mi (8,384.82 km) |
| Willoughby to Kiziltepe | 5,876.25 mi (9,456.92 km) |
