| Costa Mesa to Arroyo Grande (California) | 182.55 mi (293.79 km) |
| Costa Mesa to Artesia (California) | 16.87 mi (27.15 km) |
| Costa Mesa to Artesia (New Mexico) | 780.70 mi (1,256.41 km) |
| Costa Mesa to Artondale (Washington) | 973.83 mi (1,567.23 km) |
| Costa Mesa to Arvada (Colorado) | 823.80 mi (1,325.78 km) |
| Costa Mesa to Arvin (California) | 117.78 mi (189.55 km) |
| Costa Mesa to Asbury Lake (Florida) | 2,124.15 mi (3,418.49 km) |
| Costa Mesa to Asbury Park (New Jersey) | 2,440.86 mi (3,928.18 km) |
| Costa Mesa to Ashburn (Virginia) | 2,262.06 mi (3,640.43 km) |
| Costa Mesa to Asheboro (North Carolina) | 2,155.61 mi (3,469.12 km) |
| Costa Mesa to Asheville (North Carolina) | 2,004.12 mi (3,225.31 km) |
| Costa Mesa to Ashland (California) | 364.69 mi (586.90 km) |
| Costa Mesa to Ashland (Kentucky) | 1,985.14 mi (3,194.78 km) |
| Costa Mesa to Ashland (Ohio) | 2,004.73 mi (3,226.30 km) |
| Costa Mesa to Ashland (Oregon) | 643.82 mi (1,036.13 km) |
