| Denver to Arcos de Valdevez | 4,750.72 mi (7,645.54 km) |
| Denver to Arcozelo | 4,772.75 mi (7,681.00 km) |
| Denver to Arganil | 4,831.28 mi (7,775.20 km) |
| Denver to Arouca | 4,794.41 mi (7,715.86 km) |
| Denver to Arruda dos Vinhos | 4,837.08 mi (7,784.53 km) |
| Denver to Aveiro | 4,789.10 mi (7,707.32 km) |
| Denver to Aver-o-Mar | 4,753.43 mi (7,649.90 km) |
| Denver to Aves | 4,771.89 mi (7,679.61 km) |
| Denver to Azambuja | 4,842.47 mi (7,793.19 km) |
| Denver to Baiao | 4,794.09 mi (7,715.35 km) |
| Denver to Barcelos | 4,755.43 mi (7,653.12 km) |
| Denver to Barreiro | 4,849.81 mi (7,805.02 km) |
| Denver to Batalha | 4,821.94 mi (7,760.17 km) |
| Denver to Beja | 4,927.41 mi (7,929.90 km) |
| Denver to Belas | 4,836.46 mi (7,783.53 km) |
