| Duncan to Kidbrooke | 4,707.21 mi (7,575.52 km) |
| Duncan to Kidderminster | 4,591.62 mi (7,389.50 km) |
| Duncan to Kidlington | 4,645.59 mi (7,476.36 km) |
| Duncan to Kidsgrove | 4,570.14 mi (7,354.94 km) |
| Duncan to Killamarsh | 4,597.57 mi (7,399.08 km) |
| Duncan to Killingworth | 4,536.06 mi (7,300.08 km) |
| Duncan to Kilmarnock | 4,414.38 mi (7,104.25 km) |
| Duncan to Kilsyth | 4,419.59 mi (7,112.65 km) |
| Duncan to Kilwinning | 4,405.75 mi (7,090.38 km) |
| Duncan to King's Lynn | 4,678.65 mi (7,529.56 km) |
| Duncan to Kings Norton | 4,603.16 mi (7,408.07 km) |
| Duncan to Kingsnorth | 4,750.26 mi (7,644.80 km) |
| Duncan to Kingsteignton | 4,596.57 mi (7,397.47 km) |
| Duncan to Kingston upon Hull | 4,620.00 mi (7,435.17 km) |
| Duncan to Kingston upon Thames | 4,696.52 mi (7,558.33 km) |
