| Irthlingborough to Kingswood | 100.32 mi (161.45 km) |
| Irthlingborough to Kippax | 104.53 mi (168.22 km) |
| Irthlingborough to Kirk of Shotts | 274.10 mi (441.13 km) |
| Irthlingborough to Kirkby | 123.99 mi (199.55 km) |
| Irthlingborough to Kirkby in Ashfield | 59.71 mi (96.09 km) |
| Irthlingborough to Kirkcaldy | 281.19 mi (452.53 km) |
| Irthlingborough to Kirkintilloch | 287.84 mi (463.23 km) |
| Irthlingborough to Kirkstall | 110.94 mi (178.55 km) |
| Irthlingborough to Kirkwall | 468.88 mi (754.59 km) |
| Irthlingborough to Knaresborough | 121.62 mi (195.73 km) |
| Irthlingborough to Knottingley | 99.00 mi (159.33 km) |
| Irthlingborough to Knowle | 47.38 mi (76.25 km) |
| Irthlingborough to Knowsley | 121.40 mi (195.38 km) |
| Irthlingborough to Knutsford | 99.76 mi (160.55 km) |
| Irthlingborough to Laindon | 67.95 mi (109.35 km) |
