| Castelldefels to Aldine (Texas) | 5,236.06 mi (8,426.62 km) |
| Castelldefels to Alexander City (Alabama) | 4,668.64 mi (7,513.45 km) |
| Castelldefels to Alexandria (Louisiana) | 5,041.70 mi (8,113.84 km) |
| Castelldefels to Alexandria (Minnesota) | 4,560.60 mi (7,339.58 km) |
| Castelldefels to Alexandria (Virginia) | 4,031.95 mi (6,488.79 km) |
| Castelldefels to Algonquin (Illinois) | 4,414.80 mi (7,104.93 km) |
| Castelldefels to Alhambra (California) | 5,990.77 mi (9,641.21 km) |
| Castelldefels to Alice (Texas) | 5,456.47 mi (8,781.34 km) |
| Castelldefels to Aliso Viejo (California) | 6,001.98 mi (9,659.25 km) |
| Castelldefels to Allen (Texas) | 5,153.79 mi (8,294.22 km) |
| Castelldefels to Allen Park (Michigan) | 4,189.66 mi (6,742.61 km) |
| Castelldefels to Allendale (Michigan) | 4,282.76 mi (6,892.43 km) |
| Castelldefels to Allentown (Pennsylvania) | 3,897.41 mi (6,272.28 km) |
| Castelldefels to Alliance (Ohio) | 4,144.12 mi (6,669.31 km) |
| Castelldefels to Allison Park (Pennsylvania) | 4,103.55 mi (6,604.03 km) |
