| Cincinnati to Arcos de Valdevez | 3,865.16 mi (6,220.38 km) |
| Cincinnati to Arcozelo | 3,877.78 mi (6,240.69 km) |
| Cincinnati to Arganil | 3,930.36 mi (6,325.30 km) |
| Cincinnati to Arouca | 3,899.98 mi (6,276.42 km) |
| Cincinnati to Arruda dos Vinhos | 3,919.23 mi (6,307.40 km) |
| Cincinnati to Aveiro | 3,889.70 mi (6,259.86 km) |
| Cincinnati to Aver-o-Mar | 3,861.54 mi (6,214.54 km) |
| Cincinnati to Aves | 3,882.53 mi (6,248.33 km) |
| Cincinnati to Azambuja | 3,926.33 mi (6,318.82 km) |
| Cincinnati to Baiao | 3,903.08 mi (6,281.40 km) |
| Cincinnati to Barcelos | 3,865.43 mi (6,220.81 km) |
| Cincinnati to Barreiro | 3,928.89 mi (6,322.94 km) |
| Cincinnati to Batalha | 3,911.87 mi (6,295.55 km) |
| Cincinnati to Beja | 4,005.85 mi (6,446.79 km) |
| Cincinnati to Belas | 3,915.67 mi (6,301.66 km) |
