| Round Lake Beach to Arcata (California) | 1,848.22 mi (2,974.42 km) |
| Round Lake Beach to Archdale (North Carolina) | 623.63 mi (1,003.63 km) |
| Round Lake Beach to Arden-Arcade (California) | 1,757.87 mi (2,829.02 km) |
| Round Lake Beach to Ardmore (Oklahoma) | 747.66 mi (1,203.24 km) |
| Round Lake Beach to Ardmore (Pennsylvania) | 684.04 mi (1,100.86 km) |
| Round Lake Beach to Arecibo (Puerto Rico) | 2,073.11 mi (3,336.34 km) |
| Round Lake Beach to Arkadelphia (Arkansas) | 631.03 mi (1,015.54 km) |
| Round Lake Beach to Arkansas City (Kansas) | 600.26 mi (966.03 km) |
| Round Lake Beach to Arlington (Tennessee) | 499.26 mi (803.48 km) |
| Round Lake Beach to Arlington (Texas) | 831.24 mi (1,337.74 km) |
| Round Lake Beach to Arlington (Virginia) | 623.89 mi (1,004.06 km) |
| Round Lake Beach to Arlington (Washington) | 1,688.91 mi (2,718.03 km) |
| Round Lake Beach to Arlington Heights (Illinois) | 20.23 mi (32.56 km) |
| Round Lake Beach to Arnold (Maryland) | 648.30 mi (1,043.34 km) |
| Round Lake Beach to Arnold (Missouri) | 298.31 mi (480.08 km) |
