| Rockville Centre to Arcos de Valdevez | 3,303.48 mi (5,316.43 km) |
| Rockville Centre to Arcozelo | 3,313.30 mi (5,332.23 km) |
| Rockville Centre to Arganil | 3,363.93 mi (5,413.73 km) |
| Rockville Centre to Arouca | 3,335.53 mi (5,368.01 km) |
| Rockville Centre to Arruda dos Vinhos | 3,348.42 mi (5,388.76 km) |
| Rockville Centre to Aveiro | 3,323.90 mi (5,349.30 km) |
| Rockville Centre to Aver-o-Mar | 3,298.02 mi (5,307.66 km) |
| Rockville Centre to Aves | 3,319.63 mi (5,342.42 km) |
| Rockville Centre to Azambuja | 3,355.92 mi (5,400.83 km) |
| Rockville Centre to Baiao | 3,339.58 mi (5,374.53 km) |
| Rockville Centre to Barcelos | 3,302.44 mi (5,314.76 km) |
| Rockville Centre to Barreiro | 3,357.28 mi (5,403.01 km) |
| Rockville Centre to Batalha | 3,343.09 mi (5,380.18 km) |
| Rockville Centre to Beja | 3,433.77 mi (5,526.11 km) |
| Rockville Centre to Belas | 3,344.13 mi (5,381.86 km) |
