| McDonough to Arcos de Valdevez | 4,049.65 mi (6,517.29 km) |
| McDonough to Arcozelo | 4,056.49 mi (6,528.30 km) |
| McDonough to Arganil | 4,104.67 mi (6,605.83 km) |
| McDonough to Arouca | 4,078.69 mi (6,564.02 km) |
| McDonough to Arruda dos Vinhos | 4,082.98 mi (6,570.92 km) |
| McDonough to Aveiro | 4,065.54 mi (6,542.85 km) |
| McDonough to Aver-o-Mar | 4,042.34 mi (6,505.51 km) |
| McDonough to Aves | 4,064.53 mi (6,541.22 km) |
| McDonough to Azambuja | 4,091.09 mi (6,583.98 km) |
| McDonough to Baiao | 4,083.79 mi (6,572.22 km) |
| McDonough to Barcelos | 4,047.30 mi (6,513.50 km) |
| McDonough to Barreiro | 4,090.49 mi (6,583.00 km) |
| McDonough to Batalha | 4,080.74 mi (6,567.31 km) |
| McDonough to Beja | 4,165.91 mi (6,704.38 km) |
| McDonough to Belas | 4,077.53 mi (6,562.16 km) |
