| Willoughby to Arcata (California) | 2,194.02 mi (3,530.94 km) |
| Willoughby to Archdale (North Carolina) | 404.37 mi (650.77 km) |
| Willoughby to Arden-Arcade (California) | 2,103.53 mi (3,385.31 km) |
| Willoughby to Ardmore (Oklahoma) | 997.12 mi (1,604.71 km) |
| Willoughby to Ardmore (Pennsylvania) | 339.10 mi (545.73 km) |
| Willoughby to Arecibo (Puerto Rico) | 1,821.05 mi (2,930.70 km) |
| Willoughby to Arkadelphia (Arkansas) | 820.02 mi (1,319.70 km) |
| Willoughby to Arkansas City (Kansas) | 891.17 mi (1,434.21 km) |
| Willoughby to Arlington (Tennessee) | 627.47 mi (1,009.81 km) |
| Willoughby to Arlington (Texas) | 1,060.61 mi (1,706.88 km) |
| Willoughby to Arlington (Virginia) | 296.80 mi (477.66 km) |
| Willoughby to Arlington (Washington) | 2,018.65 mi (3,248.71 km) |
| Willoughby to Arlington Heights (Illinois) | 339.58 mi (546.51 km) |
| Willoughby to Arnold (Maryland) | 314.89 mi (506.76 km) |
| Willoughby to Arnold (Missouri) | 523.36 mi (842.27 km) |
