| Middle River to Ashtabula (Ohio) | 288.61 mi (464.48 km) |
| Middle River to Ashwaubenon (Wisconsin) | 695.85 mi (1,119.86 km) |
| Middle River to Aspen Hill (Maryland) | 39.22 mi (63.12 km) |
| Middle River to Astoria (Oregon) | 2,412.33 mi (3,882.28 km) |
| Middle River to Atascadero (California) | 2,419.35 mi (3,893.57 km) |
| Middle River to Atascocita (Texas) | 1,243.86 mi (2,001.80 km) |
| Middle River to Atchison (Kansas) | 996.57 mi (1,603.82 km) |
| Middle River to Athens (Alabama) | 659.65 mi (1,061.61 km) |
| Middle River to Athens (Georgia) | 535.39 mi (861.63 km) |
| Middle River to Athens (Ohio) | 303.14 mi (487.86 km) |
| Middle River to Athens (Tennessee) | 522.79 mi (841.35 km) |
| Middle River to Athens (Texas) | 1,191.24 mi (1,917.11 km) |
| Middle River to Atlanta (Georgia) | 587.50 mi (945.48 km) |
| Middle River to Atlantic Beach (Florida) | 683.21 mi (1,099.52 km) |
| Middle River to Atlantic City (New Jersey) | 105.40 mi (169.63 km) |
