| Willoughby to Ashtabula (Ohio) | 35.37 mi (56.92 km) |
| Willoughby to Ashwaubenon (Wisconsin) | 389.76 mi (627.26 km) |
| Willoughby to Aspen Hill (Maryland) | 287.99 mi (463.47 km) |
| Willoughby to Astoria (Oregon) | 2,107.80 mi (3,392.17 km) |
| Willoughby to Atascadero (California) | 2,145.05 mi (3,452.13 km) |
| Willoughby to Atascocita (Texas) | 1,113.73 mi (1,792.38 km) |
| Willoughby to Atchison (Kansas) | 733.55 mi (1,180.54 km) |
| Willoughby to Athens (Alabama) | 561.19 mi (903.15 km) |
| Willoughby to Athens (Georgia) | 542.30 mi (872.75 km) |
| Willoughby to Athens (Ohio) | 164.27 mi (264.37 km) |
| Willoughby to Athens (Tennessee) | 461.05 mi (742.00 km) |
| Willoughby to Athens (Texas) | 1,027.23 mi (1,653.17 km) |
| Willoughby to Atlanta (Georgia) | 568.93 mi (915.60 km) |
| Willoughby to Atlantic Beach (Florida) | 781.33 mi (1,257.44 km) |
| Willoughby to Atlantic City (New Jersey) | 397.36 mi (639.48 km) |
