| Mason City to Arcata (California) | 1,584.07 mi (2,549.32 km) |
| Mason City to Archdale (North Carolina) | 863.50 mi (1,389.67 km) |
| Mason City to Arden-Arcade (California) | 1,498.10 mi (2,410.96 km) |
| Mason City to Ardmore (Oklahoma) | 653.68 mi (1,052.00 km) |
| Mason City to Ardmore (Pennsylvania) | 948.63 mi (1,526.67 km) |
| Mason City to Arecibo (Puerto Rico) | 2,299.37 mi (3,700.48 km) |
| Mason City to Arkadelphia (Arkansas) | 623.49 mi (1,003.42 km) |
| Mason City to Arkansas City (Kansas) | 466.12 mi (750.15 km) |
| Mason City to Arlington (Tennessee) | 576.81 mi (928.29 km) |
| Mason City to Arlington (Texas) | 752.74 mi (1,211.41 km) |
| Mason City to Arlington (Virginia) | 887.91 mi (1,428.96 km) |
| Mason City to Arlington (Washington) | 1,430.91 mi (2,302.82 km) |
| Mason City to Arlington Heights (Illinois) | 274.99 mi (442.56 km) |
| Mason City to Arnold (Maryland) | 912.90 mi (1,469.18 km) |
| Mason City to Arnold (Missouri) | 357.95 mi (576.07 km) |
