| Delaware to Ashtabula (Ohio) | 161.84 mi (260.46 km) |
| Delaware to Ashwaubenon (Wisconsin) | 386.49 mi (621.99 km) |
| Delaware to Aspen Hill (Maryland) | 328.97 mi (529.42 km) |
| Delaware to Astoria (Oregon) | 2,066.83 mi (3,326.25 km) |
| Delaware to Atascadero (California) | 2,061.98 mi (3,318.44 km) |
| Delaware to Atascocita (Texas) | 986.20 mi (1,587.13 km) |
| Delaware to Atchison (Kansas) | 640.62 mi (1,030.97 km) |
| Delaware to Athens (Alabama) | 435.26 mi (700.49 km) |
| Delaware to Athens (Georgia) | 437.96 mi (704.83 km) |
| Delaware to Athens (Ohio) | 84.04 mi (135.25 km) |
| Delaware to Athens (Tennessee) | 343.84 mi (553.35 km) |
| Delaware to Athens (Texas) | 902.35 mi (1,452.19 km) |
| Delaware to Atlanta (Georgia) | 456.72 mi (735.02 km) |
| Delaware to Atlantic Beach (Florida) | 693.63 mi (1,116.28 km) |
| Delaware to Atlantic City (New Jersey) | 461.50 mi (742.72 km) |
