| Castricum to Wichita (Kansas) | 4,652.87 mi (7,488.07 km) |
| Castricum to Wichita Falls (Texas) | 4,896.85 mi (7,880.71 km) |
| Castricum to Wickliffe (Ohio) | 3,875.89 mi (6,237.64 km) |
| Castricum to Wildomar (California) | 5,535.07 mi (8,907.84 km) |
| Castricum to Wildwood (Florida) | 4,532.65 mi (7,294.59 km) |
| Castricum to Wildwood (Missouri) | 4,366.77 mi (7,027.63 km) |
| Castricum to Wilkes-Barre (Pennsylvania) | 3,678.18 mi (5,919.46 km) |
| Castricum to Wilkinsburg (Pennsylvania) | 3,870.00 mi (6,228.16 km) |
| Castricum to Williamsburg (Virginia) | 3,897.20 mi (6,271.93 km) |
| Castricum to Williamsport (Pennsylvania) | 3,723.55 mi (5,992.47 km) |
| Castricum to Williamstown (New Jersey) | 3,714.89 mi (5,978.54 km) |
| Castricum to Willimantic (Connecticut) | 3,513.48 mi (5,654.40 km) |
| Castricum to Williston (North Dakota) | 4,306.84 mi (6,931.18 km) |
| Castricum to Willmar (Minnesota) | 4,190.77 mi (6,744.39 km) |
| Castricum to Willoughby (Ohio) | 3,871.78 mi (6,231.02 km) |
