| San Mateo to Allison Park (Pennsylvania) | 2,259.78 mi (3,636.77 km) |
| San Mateo to Allouez (Wisconsin) | 1,835.62 mi (2,954.14 km) |
| San Mateo to Aloha (Oregon) | 549.35 mi (884.09 km) |
| San Mateo to Alpena (Michigan) | 2,061.79 mi (3,318.13 km) |
| San Mateo to Alpharetta (Georgia) | 2,130.33 mi (3,428.44 km) |
| San Mateo to Alpine (California) | 451.65 mi (726.85 km) |
| San Mateo to Alpine (Utah) | 600.08 mi (965.74 km) |
| San Mateo to Alsip (Illinois) | 1,849.62 mi (2,976.67 km) |
| San Mateo to Altadena (California) | 329.45 mi (530.19 km) |
| San Mateo to Altamont (Oregon) | 322.50 mi (519.01 km) |
| San Mateo to Altamonte Springs (Florida) | 2,426.14 mi (3,904.50 km) |
| San Mateo to Alton (Illinois) | 1,739.00 mi (2,798.65 km) |
| San Mateo to Alton (Texas) | 1,601.57 mi (2,577.47 km) |
| San Mateo to Altoona (Iowa) | 1,553.35 mi (2,499.88 km) |
| San Mateo to Altoona (Pennsylvania) | 2,341.35 mi (3,768.03 km) |
