| Willoughby to Melzo | 4,297.41 mi (6,916.01 km) |
| Willoughby to Mendicino | 4,828.13 mi (7,770.12 km) |
| Willoughby to Menfi | 4,759.04 mi (7,658.93 km) |
| Willoughby to Mentana | 4,565.49 mi (7,347.44 km) |
| Willoughby to Merano | 4,324.31 mi (6,959.31 km) |
| Willoughby to Merate | 4,290.70 mi (6,905.21 km) |
| Willoughby to Mercato San Severino | 4,704.33 mi (7,570.89 km) |
| Willoughby to Mercogliano | 4,697.55 mi (7,559.97 km) |
| Willoughby to Mesagne | 4,839.47 mi (7,788.38 km) |
| Willoughby to Messina | 4,846.31 mi (7,799.39 km) |
| Willoughby to Mestre | 4,412.24 mi (7,100.82 km) |
| Willoughby to Mestrino | 4,394.80 mi (7,072.74 km) |
| Willoughby to Milan | 4,289.35 mi (6,903.04 km) |
| Willoughby to Milazzo | 4,831.73 mi (7,775.91 km) |
| Willoughby to Minerbio | 4,414.72 mi (7,104.81 km) |
