| National City to Kidbrooke | 5,489.69 mi (8,834.79 km) |
| National City to Kidderminster | 5,374.13 mi (8,648.83 km) |
| National City to Kidlington | 5,430.31 mi (8,739.25 km) |
| National City to Kidsgrove | 5,344.09 mi (8,600.48 km) |
| National City to Killamarsh | 5,364.20 mi (8,632.85 km) |
| National City to Killingworth | 5,282.32 mi (8,501.08 km) |
| National City to Kilmarnock | 5,166.26 mi (8,314.30 km) |
| National City to Kilsyth | 5,164.72 mi (8,311.82 km) |
| National City to Kilwinning | 5,157.95 mi (8,300.92 km) |
| National City to King's Lynn | 5,443.83 mi (8,761.00 km) |
| National City to Kings Norton | 5,383.91 mi (8,664.57 km) |
| National City to Kingsnorth | 5,532.53 mi (8,903.74 km) |
| National City to Kingsteignton | 5,407.47 mi (8,702.48 km) |
| National City to Kingston upon Hull | 5,376.66 mi (8,652.90 km) |
| National City to Kingston upon Thames | 5,481.25 mi (8,821.22 km) |
