| Risca to Accokeek (Maryland) | 3,550.05 mi (5,713.26 km) |
| Risca to Acworth (Georgia) | 4,080.09 mi (6,566.27 km) |
| Risca to Ada (Oklahoma) | 4,523.83 mi (7,280.39 km) |
| Risca to Addison (Illinois) | 3,842.95 mi (6,184.63 km) |
| Risca to Addison (Texas) | 4,622.18 mi (7,438.67 km) |
| Risca to Adelanto (California) | 5,283.19 mi (8,502.47 km) |
| Risca to Adelphi (Maryland) | 3,533.95 mi (5,687.34 km) |
| Risca to Adrian (Michigan) | 3,690.16 mi (5,938.73 km) |
| Risca to Affton (Missouri) | 4,091.10 mi (6,583.99 km) |
| Risca to Agoura Hills (California) | 5,351.00 mi (8,611.60 km) |
| Risca to Aguadilla (Puerto Rico) | 4,120.02 mi (6,630.53 km) |
| Risca to Aiken (South Carolina) | 3,983.89 mi (6,411.45 km) |
| Risca to Akron (Ohio) | 3,626.64 mi (5,836.51 km) |
| Risca to Alabaster (Alabama) | 4,208.74 mi (6,773.31 km) |
| Risca to Alachua (Florida) | 4,198.04 mi (6,756.09 km) |
