| Willoughby to Anoka (Minnesota) | 648.85 mi (1,044.22 km) |
| Willoughby to Ansonia (Connecticut) | 431.92 mi (695.10 km) |
| Willoughby to Antelope (California) | 2,099.83 mi (3,379.35 km) |
| Willoughby to Anthem (Arizona) | 1,751.09 mi (2,818.11 km) |
| Willoughby to Antioch (California) | 2,138.76 mi (3,441.99 km) |
| Willoughby to Antioch (Illinois) | 346.50 mi (557.63 km) |
| Willoughby to Apache Junction (Arizona) | 1,735.95 mi (2,793.75 km) |
| Willoughby to Apex (North Carolina) | 431.35 mi (694.19 km) |
| Willoughby to Apollo Beach (Florida) | 960.93 mi (1,546.47 km) |
| Willoughby to Apopka (Florida) | 894.40 mi (1,439.39 km) |
| Willoughby to Apple Valley (California) | 1,992.51 mi (3,206.63 km) |
| Willoughby to Apple Valley (Minnesota) | 630.69 mi (1,015.00 km) |
| Willoughby to Appleton (Wisconsin) | 396.88 mi (638.71 km) |
| Willoughby to Arbutus (Maryland) | 298.37 mi (480.18 km) |
| Willoughby to Arcadia (California) | 2,046.98 mi (3,294.29 km) |
