| Irthlingborough to Mickleover | 56.02 mi (90.15 km) |
| Irthlingborough to Middlesbrough | 157.73 mi (253.84 km) |
| Irthlingborough to Middleton | 107.35 mi (172.76 km) |
| Irthlingborough to Middlewich | 97.18 mi (156.40 km) |
| Irthlingborough to Midsomer Norton | 107.37 mi (172.79 km) |
| Irthlingborough to Mildenhall | 47.43 mi (76.33 km) |
| Irthlingborough to Milford Haven | 192.93 mi (310.49 km) |
| Irthlingborough to Mill Hill | 51.31 mi (82.58 km) |
| Irthlingborough to Milngavie | 291.32 mi (468.84 km) |
| Irthlingborough to Milnrow | 108.52 mi (174.64 km) |
| Irthlingborough to Milton | 81.31 mi (130.85 km) |
| Irthlingborough to Milton Keynes | 20.57 mi (33.11 km) |
| Irthlingborough to Minehead | 144.71 mi (232.89 km) |
| Irthlingborough to Minster | 87.05 mi (140.09 km) |
| Irthlingborough to Mirfield | 103.84 mi (167.12 km) |
