| Holyhead to Archdale (North Carolina) | 3,706.29 mi (5,964.70 km) |
| Holyhead to Arden-Arcade (California) | 5,053.19 mi (8,132.32 km) |
| Holyhead to Ardmore (Oklahoma) | 4,462.42 mi (7,181.57 km) |
| Holyhead to Ardmore (Pennsylvania) | 3,327.66 mi (5,355.35 km) |
| Holyhead to Arecibo (Puerto Rico) | 4,058.51 mi (6,531.54 km) |
| Holyhead to Arkadelphia (Arkansas) | 4,311.32 mi (6,938.40 km) |
| Holyhead to Arkansas City (Kansas) | 4,311.05 mi (6,937.97 km) |
| Holyhead to Arlington (Tennessee) | 4,122.12 mi (6,633.91 km) |
| Holyhead to Arlington (Texas) | 4,540.20 mi (7,306.74 km) |
| Holyhead to Arlington (Virginia) | 3,451.35 mi (5,554.41 km) |
| Holyhead to Arlington (Washington) | 4,531.12 mi (7,292.13 km) |
| Holyhead to Arlington Heights (Illinois) | 3,725.61 mi (5,995.79 km) |
| Holyhead to Arnold (Maryland) | 3,419.57 mi (5,503.26 km) |
| Holyhead to Arnold (Missouri) | 3,992.21 mi (6,424.84 km) |
| Holyhead to Arroyo Grande (California) | 5,228.34 mi (8,414.19 km) |
