| Signal Hill to Arcata (California) | 585.48 mi (942.24 km) |
| Signal Hill to Archdale (North Carolina) | 2,157.52 mi (3,472.20 km) |
| Signal Hill to Arden-Arcade (California) | 376.88 mi (606.53 km) |
| Signal Hill to Ardmore (Oklahoma) | 1,203.51 mi (1,936.86 km) |
| Signal Hill to Ardmore (Pennsylvania) | 2,383.83 mi (3,836.40 km) |
| Signal Hill to Arecibo (Puerto Rico) | 3,325.07 mi (5,351.18 km) |
| Signal Hill to Arkadelphia (Arkansas) | 1,434.62 mi (2,308.80 km) |
| Signal Hill to Arkansas City (Kansas) | 1,208.07 mi (1,944.21 km) |
| Signal Hill to Arlington (Tennessee) | 1,619.80 mi (2,606.81 km) |
| Signal Hill to Arlington (Texas) | 1,216.16 mi (1,957.23 km) |
| Signal Hill to Arlington (Virginia) | 2,292.85 mi (3,689.99 km) |
| Signal Hill to Arlington (Washington) | 1,013.73 mi (1,631.45 km) |
| Signal Hill to Arlington Heights (Illinois) | 1,730.81 mi (2,785.47 km) |
| Signal Hill to Arnold (Maryland) | 2,324.36 mi (3,740.70 km) |
| Signal Hill to Arnold (Missouri) | 1,577.63 mi (2,538.95 km) |
