| Rock Island to Abilene (Texas) | 801.19 mi (1,289.39 km) |
| Rock Island to Accokeek (Maryland) | 742.66 mi (1,195.20 km) |
| Rock Island to Acworth (Georgia) | 605.11 mi (973.84 km) |
| Rock Island to Ada (Oklahoma) | 568.83 mi (915.44 km) |
| Rock Island to Addison (Illinois) | 136.56 mi (219.78 km) |
| Rock Island to Addison (Texas) | 680.83 mi (1,095.70 km) |
| Rock Island to Adelanto (California) | 1,530.01 mi (2,462.31 km) |
| Rock Island to Adelphi (Maryland) | 737.38 mi (1,186.70 km) |
| Rock Island to Adrian (Michigan) | 338.58 mi (544.89 km) |
| Rock Island to Affton (Missouri) | 202.21 mi (325.42 km) |
| Rock Island to Agoura Hills (California) | 1,610.73 mi (2,592.22 km) |
| Rock Island to Aguadilla (Puerto Rico) | 2,106.93 mi (3,390.78 km) |
| Rock Island to Aiken (South Carolina) | 731.68 mi (1,177.52 km) |
| Rock Island to Akron (Ohio) | 471.06 mi (758.10 km) |
| Rock Island to Alabaster (Alabama) | 606.12 mi (975.46 km) |
