| Risca to Archdale (North Carolina) | 3,798.51 mi (6,113.12 km) |
| Risca to Arden-Arcade (California) | 5,181.44 mi (8,338.72 km) |
| Risca to Ardmore (Oklahoma) | 4,570.49 mi (7,355.50 km) |
| Risca to Ardmore (Pennsylvania) | 3,421.23 mi (5,505.93 km) |
| Risca to Arecibo (Puerto Rico) | 4,101.84 mi (6,601.28 km) |
| Risca to Arkadelphia (Arkansas) | 4,415.38 mi (7,105.87 km) |
| Risca to Arkansas City (Kansas) | 4,421.97 mi (7,116.47 km) |
| Risca to Arlington (Tennessee) | 4,224.06 mi (6,797.97 km) |
| Risca to Arlington (Texas) | 4,646.73 mi (7,478.19 km) |
| Risca to Arlington (Virginia) | 3,545.03 mi (5,705.17 km) |
| Risca to Arlington (Washington) | 4,662.96 mi (7,504.30 km) |
| Risca to Arlington Heights (Illinois) | 3,834.45 mi (6,170.95 km) |
| Risca to Arnold (Maryland) | 3,512.85 mi (5,653.38 km) |
| Risca to Arnold (Missouri) | 4,098.68 mi (6,596.18 km) |
| Risca to Arroyo Grande (California) | 5,354.68 mi (8,617.52 km) |
