| Potomac to Ascoli Piceno | 4,500.80 mi (7,243.34 km) |
| Potomac to Asola | 4,283.09 mi (6,892.96 km) |
| Potomac to Asolo | 4,327.43 mi (6,964.33 km) |
| Potomac to Assemini | 4,421.42 mi (7,115.59 km) |
| Potomac to Assisi | 4,450.87 mi (7,162.98 km) |
| Potomac to Asti | 4,198.05 mi (6,756.11 km) |
| Potomac to Atessa | 4,566.73 mi (7,349.45 km) |
| Potomac to Atri | 4,527.72 mi (7,286.66 km) |
| Potomac to Atripalda | 4,625.47 mi (7,443.97 km) |
| Potomac to Augusta | 4,781.62 mi (7,695.27 km) |
| Potomac to Aulla | 4,296.71 mi (6,914.88 km) |
| Potomac to Aurisina | 4,406.61 mi (7,091.76 km) |
| Potomac to Avellino | 4,623.85 mi (7,441.37 km) |
| Potomac to Aversa | 4,596.02 mi (7,396.58 km) |
| Potomac to Avezzano | 4,523.51 mi (7,279.89 km) |
