| Pittsburgh to Alenquer | 3,663.65 mi (5,896.08 km) |
| Pittsburgh to Alfena | 3,622.98 mi (5,830.63 km) |
| Pittsburgh to Alijo | 3,671.46 mi (5,908.65 km) |
| Pittsburgh to Aljustrel | 3,739.56 mi (6,018.24 km) |
| Pittsburgh to Almada | 3,667.94 mi (5,902.98 km) |
| Pittsburgh to Almargem | 3,657.42 mi (5,886.04 km) |
| Pittsburgh to Almeirim | 3,678.45 mi (5,919.89 km) |
| Pittsburgh to Amadora | 3,662.70 mi (5,894.55 km) |
| Pittsburgh to Amarante | 3,643.83 mi (5,864.18 km) |
| Pittsburgh to Amares | 3,621.25 mi (5,827.84 km) |
| Pittsburgh to Amora | 3,671.48 mi (5,908.68 km) |
| Pittsburgh to Anadia | 3,650.63 mi (5,875.13 km) |
| Pittsburgh to Angra do Heroismo | 2,771.18 mi (4,459.79 km) |
| Pittsburgh to Ansiao | 3,665.85 mi (5,899.61 km) |
| Pittsburgh to Anta | 3,624.88 mi (5,833.68 km) |
