| Castel Gandolfo to Arcozelo | 1,101.68 mi (1,772.98 km) |
| Castel Gandolfo to Arganil | 1,082.52 mi (1,742.15 km) |
| Castel Gandolfo to Arouca | 1,082.81 mi (1,742.62 km) |
| Castel Gandolfo to Arruda dos Vinhos | 1,156.00 mi (1,860.40 km) |
| Castel Gandolfo to Aveiro | 1,107.42 mi (1,782.22 km) |
| Castel Gandolfo to Aver-o-Mar | 1,104.58 mi (1,777.65 km) |
| Castel Gandolfo to Aves | 1,080.18 mi (1,738.38 km) |
| Castel Gandolfo to Azambuja | 1,144.08 mi (1,841.21 km) |
| Castel Gandolfo to Baiao | 1,069.30 mi (1,720.87 km) |
| Castel Gandolfo to Barcelos | 1,095.67 mi (1,763.31 km) |
| Castel Gandolfo to Barreiro | 1,162.38 mi (1,870.67 km) |
| Castel Gandolfo to Batalha | 1,130.03 mi (1,818.61 km) |
| Castel Gandolfo to Beja | 1,115.55 mi (1,795.30 km) |
| Castel Gandolfo to Belas | 1,170.69 mi (1,884.05 km) |
| Castel Gandolfo to Benavente | 1,142.59 mi (1,838.82 km) |
