| Willoughby to Mankato (Minnesota) | 658.82 mi (1,060.26 km) |
| Willoughby to Manor (Texas) | 1,187.91 mi (1,911.76 km) |
| Willoughby to Manorville (New York) | 450.72 mi (725.37 km) |
| Willoughby to Mansfield (Ohio) | 84.16 mi (135.45 km) |
| Willoughby to Mansfield (Texas) | 1,066.29 mi (1,716.03 km) |
| Willoughby to Manteca (California) | 2,113.89 mi (3,401.98 km) |
| Willoughby to Manville (New Jersey) | 363.08 mi (584.31 km) |
| Willoughby to Maple Grove (Minnesota) | 650.13 mi (1,046.28 km) |
| Willoughby to Maple Heights (Ohio) | 18.18 mi (29.26 km) |
| Willoughby to Maple Valley (Washington) | 2,016.76 mi (3,245.66 km) |
| Willoughby to Mapleton (Utah) | 1,571.30 mi (2,528.76 km) |
| Willoughby to Maplewood (Minnesota) | 627.15 mi (1,009.30 km) |
| Willoughby to Marana (Arizona) | 1,748.86 mi (2,814.52 km) |
| Willoughby to Marco Island (Florida) | 1,085.78 mi (1,747.40 km) |
| Willoughby to Margate (Florida) | 1,066.16 mi (1,715.83 km) |
