| Dayton to Arcos de Valdevez | 3,829.51 mi (6,162.99 km) |
| Dayton to Arcozelo | 3,842.64 mi (6,184.14 km) |
| Dayton to Arganil | 3,895.59 mi (6,269.35 km) |
| Dayton to Arouca | 3,864.83 mi (6,219.84 km) |
| Dayton to Arruda dos Vinhos | 3,885.44 mi (6,253.02 km) |
| Dayton to Aveiro | 3,854.81 mi (6,203.72 km) |
| Dayton to Aver-o-Mar | 3,826.22 mi (6,157.70 km) |
| Dayton to Aves | 3,847.09 mi (6,191.29 km) |
| Dayton to Azambuja | 3,892.45 mi (6,264.29 km) |
| Dayton to Baiao | 3,867.75 mi (6,224.53 km) |
| Dayton to Barcelos | 3,830.01 mi (6,163.80 km) |
| Dayton to Barreiro | 3,895.30 mi (6,268.88 km) |
| Dayton to Batalha | 3,877.62 mi (6,240.42 km) |
| Dayton to Beja | 3,972.35 mi (6,392.88 km) |
| Dayton to Belas | 3,882.05 mi (6,247.56 km) |
