| San Mateo to Altus (Oklahoma) | 1,296.43 mi (2,086.40 km) |
| San Mateo to Alum Rock (California) | 29.61 mi (47.65 km) |
| San Mateo to Alvin (Texas) | 1,649.20 mi (2,654.13 km) |
| San Mateo to Amarillo (Texas) | 1,148.55 mi (1,848.41 km) |
| San Mateo to Amelia (Ohio) | 2,053.05 mi (3,304.06 km) |
| San Mateo to American Canyon (California) | 43.45 mi (69.92 km) |
| San Mateo to American Fork (Utah) | 597.32 mi (961.29 km) |
| San Mateo to Americus (Georgia) | 2,178.34 mi (3,505.71 km) |
| San Mateo to Ames (Iowa) | 1,546.62 mi (2,489.04 km) |
| San Mateo to Amherst (Ohio) | 2,134.93 mi (3,435.84 km) |
| San Mateo to Ammon (Idaho) | 679.81 mi (1,094.04 km) |
| San Mateo to Amsterdam (New York) | 2,530.00 mi (4,071.64 km) |
| San Mateo to Anacortes (Washington) | 755.74 mi (1,216.25 km) |
| San Mateo to Anaheim (California) | 358.10 mi (576.31 km) |
| San Mateo to Anchorage (Alaska) | 1,998.21 mi (3,215.80 km) |
