| Oak Ridge to Oswaldtwistle | 3,955.46 mi (6,365.70 km) |
| Oak Ridge to Oswestry | 3,948.04 mi (6,353.76 km) |
| Oak Ridge to Otley | 3,979.43 mi (6,404.27 km) |
| Oak Ridge to Ovenden | 3,975.49 mi (6,397.93 km) |
| Oak Ridge to Oxford | 4,044.45 mi (6,508.92 km) |
| Oak Ridge to Oxted | 4,106.78 mi (6,609.22 km) |
| Oak Ridge to Padbury | 4,051.65 mi (6,520.49 km) |
| Oak Ridge to Padiham | 3,957.52 mi (6,369.01 km) |
| Oak Ridge to Paignton | 3,980.04 mi (6,405.26 km) |
| Oak Ridge to Paisley | 3,837.06 mi (6,175.15 km) |
| Oak Ridge to Palmers Green | 4,093.85 mi (6,588.41 km) |
| Oak Ridge to Parkstone | 4,040.52 mi (6,502.60 km) |
| Oak Ridge to Partick | 3,840.80 mi (6,181.18 km) |
| Oak Ridge to Patcham | 4,110.57 mi (6,615.32 km) |
| Oak Ridge to Peebles | 3,886.92 mi (6,255.39 km) |
