| Signal Hill to Allison Park (Pennsylvania) | 2,136.93 mi (3,439.05 km) |
| Signal Hill to Allouez (Wisconsin) | 1,762.36 mi (2,836.24 km) |
| Signal Hill to Aloha (Oregon) | 845.12 mi (1,360.09 km) |
| Signal Hill to Alpena (Michigan) | 1,990.91 mi (3,204.06 km) |
| Signal Hill to Alpharetta (Georgia) | 1,933.99 mi (3,112.46 km) |
| Signal Hill to Alpine (California) | 104.95 mi (168.89 km) |
| Signal Hill to Alpine (Utah) | 579.16 mi (932.07 km) |
| Signal Hill to Alsip (Illinois) | 1,738.82 mi (2,798.37 km) |
| Signal Hill to Altadena (California) | 26.99 mi (43.44 km) |
| Signal Hill to Altamont (Oregon) | 611.35 mi (983.87 km) |
| Signal Hill to Altamonte Springs (Florida) | 2,189.67 mi (3,523.93 km) |
| Signal Hill to Alton (Illinois) | 1,591.60 mi (2,561.43 km) |
| Signal Hill to Alton (Texas) | 1,293.29 mi (2,081.34 km) |
| Signal Hill to Altoona (Iowa) | 1,447.68 mi (2,329.81 km) |
| Signal Hill to Altoona (Pennsylvania) | 2,218.84 mi (3,570.88 km) |
