| Denver to Ascoli Piceno | 5,556.49 mi (8,942.31 km) |
| Denver to Asola | 5,329.64 mi (8,577.23 km) |
| Denver to Asolo | 5,352.60 mi (8,614.17 km) |
| Denver to Assemini | 5,565.67 mi (8,957.07 km) |
| Denver to Assisi | 5,511.53 mi (8,869.96 km) |
| Denver to Asti | 5,267.10 mi (8,476.58 km) |
| Denver to Atessa | 5,626.21 mi (9,054.50 km) |
| Denver to Atri | 5,583.82 mi (8,986.29 km) |
| Denver to Atripalda | 5,697.92 mi (9,169.91 km) |
| Denver to Augusta | 5,899.99 mi (9,495.12 km) |
| Denver to Aulla | 5,362.28 mi (8,629.76 km) |
| Denver to Aurisina | 5,417.40 mi (8,718.46 km) |
| Denver to Avellino | 5,696.63 mi (9,167.84 km) |
| Denver to Aversa | 5,673.30 mi (9,130.30 km) |
| Denver to Avezzano | 5,592.18 mi (8,999.74 km) |
