| San Marcos to Arroyo Grande (California) | 238.57 mi (383.94 km) |
| San Marcos to Artesia (California) | 72.72 mi (117.03 km) |
| San Marcos to Artesia (New Mexico) | 738.55 mi (1,188.57 km) |
| San Marcos to Artondale (Washington) | 1,019.78 mi (1,641.18 km) |
| San Marcos to Arvada (Colorado) | 811.37 mi (1,305.77 km) |
| San Marcos to Arvin (California) | 170.91 mi (275.05 km) |
| San Marcos to Asbury Lake (Florida) | 2,083.87 mi (3,353.66 km) |
| San Marcos to Asbury Park (New Jersey) | 2,416.87 mi (3,889.58 km) |
| San Marcos to Ashburn (Virginia) | 2,235.98 mi (3,598.46 km) |
| San Marcos to Asheboro (North Carolina) | 2,124.00 mi (3,418.25 km) |
| San Marcos to Asheville (North Carolina) | 1,971.87 mi (3,173.41 km) |
| San Marcos to Ashland (California) | 420.17 mi (676.19 km) |
| San Marcos to Ashland (Kentucky) | 1,957.90 mi (3,150.93 km) |
| San Marcos to Ashland (Ohio) | 1,981.88 mi (3,189.53 km) |
| San Marcos to Ashland (Oregon) | 694.43 mi (1,117.57 km) |
