| San Mateo to Arroyo Grande (California) | 193.36 mi (311.18 km) |
| San Mateo to Artesia (California) | 348.01 mi (560.07 km) |
| San Mateo to Artesia (New Mexico) | 1,058.78 mi (1,703.95 km) |
| San Mateo to Artondale (Washington) | 673.86 mi (1,084.47 km) |
| San Mateo to Arvada (Colorado) | 937.27 mi (1,508.38 km) |
| San Mateo to Arvin (California) | 253.05 mi (407.24 km) |
| San Mateo to Asbury Lake (Florida) | 2,364.95 mi (3,806.02 km) |
| San Mateo to Asbury Park (New Jersey) | 2,572.01 mi (4,139.24 km) |
| San Mateo to Ashburn (Virginia) | 2,409.01 mi (3,876.93 km) |
| San Mateo to Asheboro (North Carolina) | 2,339.66 mi (3,765.32 km) |
| San Mateo to Asheville (North Carolina) | 2,194.28 mi (3,531.35 km) |
| San Mateo to Ashland (California) | 14.54 mi (23.41 km) |
| San Mateo to Ashland (Kentucky) | 2,143.61 mi (3,449.81 km) |
| San Mateo to Ashland (Ohio) | 2,134.83 mi (3,435.67 km) |
| San Mateo to Ashland (Oregon) | 321.13 mi (516.81 km) |
