| Key West to Ashtabula (Ohio) | 1,197.75 mi (1,927.60 km) |
| Key West to Ashwaubenon (Wisconsin) | 1,421.02 mi (2,286.92 km) |
| Key West to Aspen Hill (Maryland) | 1,040.54 mi (1,674.59 km) |
| Key West to Astoria (Oregon) | 2,753.51 mi (4,431.35 km) |
| Key West to Atascadero (California) | 2,428.97 mi (3,909.05 km) |
| Key West to Atascocita (Texas) | 904.09 mi (1,454.99 km) |
| Key West to Atchison (Kansas) | 1,295.12 mi (2,084.30 km) |
| Key West to Athens (Alabama) | 771.07 mi (1,240.91 km) |
| Key West to Athens (Georgia) | 655.58 mi (1,055.05 km) |
| Key West to Athens (Ohio) | 1,020.18 mi (1,641.82 km) |
| Key West to Athens (Tennessee) | 771.30 mi (1,241.28 km) |
| Key West to Athens (Texas) | 1,002.83 mi (1,613.90 km) |
| Key West to Atlanta (Georgia) | 655.20 mi (1,054.45 km) |
| Key West to Atlantic Beach (Florida) | 399.52 mi (642.97 km) |
| Key West to Atlantic City (New Jersey) | 1,109.00 mi (1,784.76 km) |
