| Willoughby to Maricopa (Arizona) | 1,771.38 mi (2,850.76 km) |
| Willoughby to Marietta (Georgia) | 558.25 mi (898.42 km) |
| Willoughby to Marietta (Ohio) | 153.52 mi (247.07 km) |
| Willoughby to Marina (California) | 2,170.14 mi (3,492.50 km) |
| Willoughby to Marinette (Wisconsin) | 392.62 mi (631.86 km) |
| Willoughby to Marion (Arkansas) | 651.19 mi (1,047.98 km) |
| Willoughby to Marion (Illinois) | 482.89 mi (777.14 km) |
| Willoughby to Marion (Indiana) | 233.96 mi (376.52 km) |
| Willoughby to Marion (Iowa) | 524.21 mi (843.64 km) |
| Willoughby to Marion (Ohio) | 114.93 mi (184.97 km) |
| Willoughby to Marion Oaks (Florida) | 874.78 mi (1,407.83 km) |
| Willoughby to Markham (Illinois) | 324.41 mi (522.08 km) |
| Willoughby to Marlborough (Massachusetts) | 508.41 mi (818.21 km) |
| Willoughby to Marlton (New Jersey) | 359.69 mi (578.86 km) |
| Willoughby to Marquette (Michigan) | 450.47 mi (724.96 km) |
