| Seia to Oswestry | 886.73 mi (1,427.06 km) |
| Seia to Otley | 972.63 mi (1,565.29 km) |
| Seia to Ovenden | 959.53 mi (1,544.21 km) |
| Seia to Oxford | 840.72 mi (1,353.01 km) |
| Seia to Oxted | 834.19 mi (1,342.49 km) |
| Seia to Padbury | 859.88 mi (1,383.84 km) |
| Seia to Padiham | 957.57 mi (1,541.06 km) |
| Seia to Paignton | 720.09 mi (1,158.87 km) |
| Seia to Paisley | 1,076.03 mi (1,731.70 km) |
| Seia to Palmers Green | 853.95 mi (1,374.29 km) |
| Seia to Parkstone | 762.77 mi (1,227.55 km) |
| Seia to Partick | 1,078.40 mi (1,735.51 km) |
| Seia to Patcham | 807.46 mi (1,299.48 km) |
| Seia to Peebles | 1,072.17 mi (1,725.50 km) |
| Seia to Pelsall | 885.75 mi (1,425.47 km) |
