| Griffin to Arcos de Valdevez | 4,063.03 mi (6,538.81 km) |
| Griffin to Arcozelo | 4,069.74 mi (6,549.61 km) |
| Griffin to Arganil | 4,117.81 mi (6,626.97 km) |
| Griffin to Arouca | 4,091.93 mi (6,585.33 km) |
| Griffin to Arruda dos Vinhos | 4,095.88 mi (6,591.68 km) |
| Griffin to Aveiro | 4,078.72 mi (6,564.06 km) |
| Griffin to Aver-o-Mar | 4,055.63 mi (6,526.91 km) |
| Griffin to Aves | 4,077.84 mi (6,562.65 km) |
| Griffin to Azambuja | 4,104.02 mi (6,604.78 km) |
| Griffin to Baiao | 4,097.07 mi (6,593.60 km) |
| Griffin to Barcelos | 4,060.62 mi (6,534.93 km) |
| Griffin to Barreiro | 4,103.34 mi (6,603.68 km) |
| Griffin to Batalha | 4,093.76 mi (6,588.27 km) |
| Griffin to Beja | 4,178.71 mi (6,724.99 km) |
| Griffin to Belas | 4,090.39 mi (6,582.85 km) |
