| Denver to Alenquer | 4,836.59 mi (7,783.74 km) |
| Denver to Alfena | 4,770.36 mi (7,677.15 km) |
| Denver to Alijo | 4,813.33 mi (7,746.31 km) |
| Denver to Aljustrel | 4,919.74 mi (7,917.56 km) |
| Denver to Almada | 4,845.25 mi (7,797.67 km) |
| Denver to Almargem | 4,833.57 mi (7,778.89 km) |
| Denver to Almeirim | 4,847.99 mi (7,802.08 km) |
| Denver to Amadora | 4,839.83 mi (7,788.95 km) |
| Denver to Amarante | 4,788.68 mi (7,706.64 km) |
| Denver to Amares | 4,763.46 mi (7,666.04 km) |
| Denver to Amora | 4,849.14 mi (7,803.93 km) |
| Denver to Anadia | 4,806.38 mi (7,735.12 km) |
| Denver to Angra do Heroismo | 4,017.27 mi (6,465.18 km) |
| Denver to Ansiao | 4,827.09 mi (7,768.46 km) |
| Denver to Anta | 4,775.29 mi (7,685.08 km) |
