| Delaware to Oswaldtwistle | 3,698.34 mi (5,951.90 km) |
| Delaware to Oswestry | 3,694.36 mi (5,945.51 km) |
| Delaware to Otley | 3,721.29 mi (5,988.84 km) |
| Delaware to Ovenden | 3,718.02 mi (5,983.57 km) |
| Delaware to Oxford | 3,793.17 mi (6,104.52 km) |
| Delaware to Oxted | 3,856.12 mi (6,205.83 km) |
| Delaware to Padbury | 3,799.38 mi (6,114.51 km) |
| Delaware to Padiham | 3,700.16 mi (5,954.83 km) |
| Delaware to Paignton | 3,735.32 mi (6,011.41 km) |
| Delaware to Paisley | 3,574.26 mi (5,752.21 km) |
| Delaware to Palmers Green | 3,842.07 mi (6,183.22 km) |
| Delaware to Parkstone | 3,793.42 mi (6,104.92 km) |
| Delaware to Partick | 3,577.86 mi (5,758.01 km) |
| Delaware to Patcham | 3,861.36 mi (6,214.26 km) |
| Delaware to Peebles | 3,624.06 mi (5,832.36 km) |
