| Opfikon to Arcos de Valdevez | 917.36 mi (1,476.35 km) |
| Opfikon to Arcozelo | 956.00 mi (1,538.54 km) |
| Opfikon to Arganil | 963.96 mi (1,551.34 km) |
| Opfikon to Arouca | 943.52 mi (1,518.45 km) |
| Opfikon to Arruda dos Vinhos | 1,058.91 mi (1,704.16 km) |
| Opfikon to Aveiro | 972.73 mi (1,565.46 km) |
| Opfikon to Aver-o-Mar | 948.73 mi (1,526.83 km) |
| Opfikon to Aves | 926.81 mi (1,491.55 km) |
| Opfikon to Azambuja | 1,046.95 mi (1,684.90 km) |
| Opfikon to Baiao | 925.41 mi (1,489.31 km) |
| Opfikon to Barcelos | 937.92 mi (1,509.43 km) |
| Opfikon to Barreiro | 1,072.86 mi (1,726.60 km) |
| Opfikon to Batalha | 1,019.15 mi (1,640.16 km) |
| Opfikon to Beja | 1,054.04 mi (1,696.31 km) |
| Opfikon to Belas | 1,076.54 mi (1,732.53 km) |
