| Castricum to Accokeek (Maryland) | 3,842.01 mi (6,183.12 km) |
| Castricum to Acworth (Georgia) | 4,368.80 mi (7,030.91 km) |
| Castricum to Ada (Oklahoma) | 4,783.74 mi (7,698.69 km) |
| Castricum to Addison (Illinois) | 4,102.54 mi (6,602.39 km) |
| Castricum to Addison (Texas) | 4,886.36 mi (7,863.83 km) |
| Castricum to Adelanto (California) | 5,483.78 mi (8,825.28 km) |
| Castricum to Adelphi (Maryland) | 3,825.10 mi (6,155.90 km) |
| Castricum to Adrian (Michigan) | 3,958.51 mi (6,370.61 km) |
| Castricum to Affton (Missouri) | 4,355.70 mi (7,009.82 km) |
| Castricum to Agoura Hills (California) | 5,548.33 mi (8,929.17 km) |
| Castricum to Aguadilla (Puerto Rico) | 4,454.08 mi (7,168.14 km) |
| Castricum to Aiken (South Carolina) | 4,279.59 mi (6,887.34 km) |
| Castricum to Akron (Ohio) | 3,902.82 mi (6,280.98 km) |
| Castricum to Alabaster (Alabama) | 4,495.03 mi (7,234.05 km) |
| Castricum to Alachua (Florida) | 4,500.24 mi (7,242.43 km) |
