| Willoughby to Mirfield | 3,599.11 mi (5,792.21 km) |
| Willoughby to Mitcham | 3,719.15 mi (5,985.40 km) |
| Willoughby to Mold | 3,556.34 mi (5,723.37 km) |
| Willoughby to Molesey | 3,710.81 mi (5,971.97 km) |
| Willoughby to Monkseaton | 3,574.27 mi (5,752.23 km) |
| Willoughby to Monmouth | 3,606.63 mi (5,804.31 km) |
| Willoughby to Montrose | 3,499.13 mi (5,631.30 km) |
| Willoughby to Morden | 3,717.43 mi (5,982.63 km) |
| Willoughby to Morecambe | 3,544.52 mi (5,704.35 km) |
| Willoughby to Moreton | 3,551.46 mi (5,715.53 km) |
| Willoughby to Morley | 3,600.69 mi (5,794.75 km) |
| Willoughby to Morpeth | 3,562.69 mi (5,733.60 km) |
| Willoughby to Morriston | 3,561.87 mi (5,732.27 km) |
| Willoughby to Mosbrough | 3,620.61 mi (5,826.81 km) |
| Willoughby to Mossley | 3,589.89 mi (5,777.36 km) |
