| Upminster to Mexborough | 148.96 mi (239.72 km) |
| Upminster to Mickleover | 120.26 mi (193.53 km) |
| Upminster to Middlesbrough | 217.65 mi (350.28 km) |
| Upminster to Middleton | 171.95 mi (276.72 km) |
| Upminster to Middlewich | 160.28 mi (257.95 km) |
| Upminster to Midsomer Norton | 119.23 mi (191.88 km) |
| Upminster to Mildenhall | 55.60 mi (89.48 km) |
| Upminster to Milford Haven | 227.24 mi (365.70 km) |
| Upminster to Mill Hill | 21.13 mi (34.00 km) |
| Upminster to Milngavie | 355.69 mi (572.42 km) |
| Upminster to Milnrow | 173.14 mi (278.64 km) |
| Upminster to Milton | 144.50 mi (232.54 km) |
| Upminster to Milton Keynes | 54.65 mi (87.95 km) |
| Upminster to Minehead | 162.45 mi (261.44 km) |
| Upminster to Minster | 25.74 mi (41.42 km) |
