| Frederick to Arcos de Valdevez | 3,520.34 mi (5,665.44 km) |
| Frederick to Arcozelo | 3,530.28 mi (5,681.43 km) |
| Frederick to Arganil | 3,580.95 mi (5,762.99 km) |
| Frederick to Arouca | 3,552.51 mi (5,717.21 km) |
| Frederick to Arruda dos Vinhos | 3,565.37 mi (5,737.91 km) |
| Frederick to Aveiro | 3,540.91 mi (5,698.55 km) |
| Frederick to Aver-o-Mar | 3,514.97 mi (5,656.80 km) |
| Frederick to Aves | 3,536.55 mi (5,691.53 km) |
| Frederick to Azambuja | 3,572.89 mi (5,750.01 km) |
| Frederick to Baiao | 3,556.53 mi (5,723.68 km) |
| Frederick to Barcelos | 3,519.37 mi (5,663.87 km) |
| Frederick to Barreiro | 3,574.19 mi (5,752.10 km) |
| Frederick to Batalha | 3,560.10 mi (5,729.43 km) |
| Frederick to Beja | 3,650.64 mi (5,875.14 km) |
| Frederick to Belas | 3,561.05 mi (5,730.95 km) |
