| Pittsburgh to Oswaldtwistle | 3,571.84 mi (5,748.32 km) |
| Pittsburgh to Oswestry | 3,565.70 mi (5,738.44 km) |
| Pittsburgh to Otley | 3,595.47 mi (5,786.34 km) |
| Pittsburgh to Ovenden | 3,591.75 mi (5,780.37 km) |
| Pittsburgh to Oxford | 3,663.10 mi (5,895.20 km) |
| Pittsburgh to Oxted | 3,725.71 mi (5,995.95 km) |
| Pittsburgh to Padbury | 3,669.90 mi (5,906.13 km) |
| Pittsburgh to Padiham | 3,573.82 mi (5,751.50 km) |
| Pittsburgh to Paignton | 3,601.57 mi (5,796.17 km) |
| Pittsburgh to Paisley | 3,451.60 mi (5,554.81 km) |
| Pittsburgh to Palmers Green | 3,712.32 mi (5,974.39 km) |
| Pittsburgh to Parkstone | 3,660.98 mi (5,891.78 km) |
| Pittsburgh to Partick | 3,455.30 mi (5,560.77 km) |
| Pittsburgh to Patcham | 3,730.12 mi (6,003.05 km) |
| Pittsburgh to Peebles | 3,501.45 mi (5,635.04 km) |
