| Key Largo to Arcata (California) | 2,719.94 mi (4,377.33 km) |
| Key Largo to Archdale (North Carolina) | 745.37 mi (1,199.55 km) |
| Key Largo to Arden-Arcade (California) | 2,553.29 mi (4,109.13 km) |
| Key Largo to Ardmore (Oklahoma) | 1,180.70 mi (1,900.15 km) |
| Key Largo to Ardmore (Pennsylvania) | 1,069.95 mi (1,721.92 km) |
| Key Largo to Arecibo (Puerto Rico) | 990.14 mi (1,593.48 km) |
| Key Largo to Arkadelphia (Arkansas) | 980.96 mi (1,578.70 km) |
| Key Largo to Arkansas City (Kansas) | 1,280.70 mi (2,061.09 km) |
| Key Largo to Arlington (Tennessee) | 891.26 mi (1,434.34 km) |
| Key Largo to Arlington (Texas) | 1,136.37 mi (1,828.81 km) |
| Key Largo to Arlington (Virginia) | 969.85 mi (1,560.83 km) |
| Key Largo to Arlington (Washington) | 2,758.06 mi (4,438.66 km) |
| Key Largo to Arlington Heights (Illinois) | 1,249.70 mi (2,011.19 km) |
| Key Largo to Arnold (Maryland) | 988.50 mi (1,590.84 km) |
| Key Largo to Arnold (Missouri) | 1,088.19 mi (1,751.27 km) |
