| Romanshorn to Arcos de Valdevez | 955.19 mi (1,537.22 km) |
| Romanshorn to Arcozelo | 993.66 mi (1,599.15 km) |
| Romanshorn to Arganil | 1,001.22 mi (1,611.31 km) |
| Romanshorn to Arouca | 981.09 mi (1,578.91 km) |
| Romanshorn to Arruda dos Vinhos | 1,095.92 mi (1,763.71 km) |
| Romanshorn to Aveiro | 1,010.27 mi (1,625.87 km) |
| Romanshorn to Aver-o-Mar | 986.49 mi (1,587.60 km) |
| Romanshorn to Aves | 964.53 mi (1,552.26 km) |
| Romanshorn to Azambuja | 1,083.94 mi (1,744.43 km) |
| Romanshorn to Baiao | 963.02 mi (1,549.83 km) |
| Romanshorn to Barcelos | 975.69 mi (1,570.23 km) |
| Romanshorn to Barreiro | 1,109.73 mi (1,785.93 km) |
| Romanshorn to Batalha | 1,056.36 mi (1,700.05 km) |
| Romanshorn to Beja | 1,090.18 mi (1,754.48 km) |
| Romanshorn to Belas | 1,113.51 mi (1,792.03 km) |
