| Willoughby to Kidbrooke | 3,724.50 mi (5,994.00 km) |
| Willoughby to Kidderminster | 3,610.26 mi (5,810.16 km) |
| Willoughby to Kidlington | 3,662.72 mi (5,894.58 km) |
| Willoughby to Kidsgrove | 3,592.54 mi (5,781.63 km) |
| Willoughby to Killamarsh | 3,622.66 mi (5,830.11 km) |
| Willoughby to Killingworth | 3,570.95 mi (5,746.89 km) |
| Willoughby to Kilmarnock | 3,448.65 mi (5,550.07 km) |
| Willoughby to Kilsyth | 3,456.90 mi (5,563.34 km) |
| Willoughby to Kilwinning | 3,440.02 mi (5,536.18 km) |
| Willoughby to King's Lynn | 3,703.25 mi (5,959.81 km) |
| Willoughby to Kings Norton | 3,622.37 mi (5,829.64 km) |
| Willoughby to Kingsnorth | 3,767.13 mi (6,062.61 km) |
| Willoughby to Kingsteignton | 3,604.44 mi (5,800.79 km) |
| Willoughby to Kingston upon Hull | 3,649.03 mi (5,872.54 km) |
| Willoughby to Kingston upon Thames | 3,713.06 mi (5,975.59 km) |
