| Mastic Beach to Arcos de Valdevez | 3,262.25 mi (5,250.08 km) |
| Mastic Beach to Arcozelo | 3,271.88 mi (5,265.58 km) |
| Mastic Beach to Arganil | 3,322.38 mi (5,346.85 km) |
| Mastic Beach to Arouca | 3,294.11 mi (5,301.35 km) |
| Mastic Beach to Arruda dos Vinhos | 3,306.58 mi (5,321.42 km) |
| Mastic Beach to Aveiro | 3,282.39 mi (5,282.50 km) |
| Mastic Beach to Aver-o-Mar | 3,256.67 mi (5,241.11 km) |
| Mastic Beach to Aves | 3,278.32 mi (5,275.94 km) |
| Mastic Beach to Azambuja | 3,314.11 mi (5,333.54 km) |
| Mastic Beach to Baiao | 3,298.23 mi (5,307.98 km) |
| Mastic Beach to Barcelos | 3,261.13 mi (5,248.27 km) |
| Mastic Beach to Barreiro | 3,315.39 mi (5,335.60 km) |
| Mastic Beach to Batalha | 3,301.38 mi (5,313.06 km) |
| Mastic Beach to Beja | 3,391.84 mi (5,458.64 km) |
| Mastic Beach to Belas | 3,302.25 mi (5,314.46 km) |
