| Frederick to Ashtabula (Ohio) | 245.01 mi (394.30 km) |
| Frederick to Ashwaubenon (Wisconsin) | 649.10 mi (1,044.62 km) |
| Frederick to Aspen Hill (Maryland) | 29.49 mi (47.46 km) |
| Frederick to Astoria (Oregon) | 2,362.46 mi (3,802.01 km) |
| Frederick to Atascadero (California) | 2,366.19 mi (3,808.02 km) |
| Frederick to Atascocita (Texas) | 1,199.42 mi (1,930.28 km) |
| Frederick to Atchison (Kansas) | 943.40 mi (1,518.25 km) |
| Frederick to Athens (Alabama) | 615.35 mi (990.31 km) |
| Frederick to Athens (Georgia) | 502.10 mi (808.04 km) |
| Frederick to Athens (Ohio) | 250.27 mi (402.76 km) |
| Frederick to Athens (Tennessee) | 480.43 mi (773.18 km) |
| Frederick to Athens (Texas) | 1,143.47 mi (1,840.23 km) |
| Frederick to Atlanta (Georgia) | 551.58 mi (887.68 km) |
| Frederick to Atlantic Beach (Florida) | 667.89 mi (1,074.87 km) |
| Frederick to Atlantic City (New Jersey) | 158.13 mi (254.49 km) |
