| Potomac to Arroyo Grande (California) | 2,384.55 mi (3,837.56 km) |
| Potomac to Artesia (California) | 2,280.90 mi (3,670.76 km) |
| Potomac to Artesia (New Mexico) | 1,575.30 mi (2,535.21 km) |
| Potomac to Artondale (Washington) | 2,325.86 mi (3,743.11 km) |
| Potomac to Arvada (Colorado) | 1,487.12 mi (2,393.29 km) |
| Potomac to Arvin (California) | 2,289.49 mi (3,684.57 km) |
| Potomac to Asbury Lake (Florida) | 672.15 mi (1,081.72 km) |
| Potomac to Asbury Park (New Jersey) | 188.82 mi (303.88 km) |
| Potomac to Ashburn (Virginia) | 14.90 mi (23.99 km) |
| Potomac to Asheboro (North Carolina) | 269.43 mi (433.60 km) |
| Potomac to Asheville (North Carolina) | 378.54 mi (609.20 km) |
| Potomac to Ashland (California) | 2,410.66 mi (3,879.59 km) |
| Potomac to Ashland (Kentucky) | 296.20 mi (476.69 km) |
| Potomac to Ashland (Ohio) | 299.92 mi (482.67 km) |
| Potomac to Ashland (Oregon) | 2,368.86 mi (3,812.31 km) |
