| Security-Widefield to Arcos de Valdevez | 4,786.51 mi (7,703.15 km) |
| Security-Widefield to Arcozelo | 4,807.70 mi (7,737.25 km) |
| Security-Widefield to Arganil | 4,865.74 mi (7,830.65 km) |
| Security-Widefield to Arouca | 4,829.44 mi (7,772.23 km) |
| Security-Widefield to Arruda dos Vinhos | 4,869.86 mi (7,837.28 km) |
| Security-Widefield to Aveiro | 4,823.65 mi (7,762.92 km) |
| Security-Widefield to Aver-o-Mar | 4,788.64 mi (7,706.57 km) |
| Security-Widefield to Aves | 4,807.36 mi (7,736.70 km) |
| Security-Widefield to Azambuja | 4,875.42 mi (7,846.24 km) |
| Security-Widefield to Baiao | 4,829.44 mi (7,772.24 km) |
| Security-Widefield to Barcelos | 4,790.82 mi (7,710.08 km) |
| Security-Widefield to Barreiro | 4,882.29 mi (7,857.28 km) |
| Security-Widefield to Batalha | 4,855.49 mi (7,814.15 km) |
| Security-Widefield to Beja | 4,959.91 mi (7,982.21 km) |
| Security-Widefield to Belas | 4,868.93 mi (7,835.79 km) |
