| Upminster to Oswaldtwistle | 187.39 mi (301.57 km) |
| Upminster to Oswestry | 166.41 mi (267.81 km) |
| Upminster to Otley | 181.43 mi (291.99 km) |
| Upminster to Ovenden | 175.51 mi (282.45 km) |
| Upminster to Oxford | 66.09 mi (106.36 km) |
| Upminster to Oxted | 23.43 mi (37.70 km) |
| Upminster to Padbury | 58.91 mi (94.81 km) |
| Upminster to Padiham | 188.39 mi (303.19 km) |
| Upminster to Paignton | 182.99 mi (294.49 km) |
| Upminster to Paisley | 352.56 mi (567.39 km) |
| Upminster to Palmers Green | 16.06 mi (25.84 km) |
| Upminster to Parkstone | 111.90 mi (180.08 km) |
| Upminster to Partick | 351.51 mi (565.70 km) |
| Upminster to Patcham | 50.85 mi (81.83 km) |
| Upminster to Peebles | 316.12 mi (508.75 km) |
