| Grevena to Oswestry | 1,449.45 mi (2,332.66 km) |
| Grevena to Otley | 1,436.68 mi (2,312.11 km) |
| Grevena to Ovenden | 1,437.39 mi (2,313.25 km) |
| Grevena to Oxford | 1,346.66 mi (2,167.23 km) |
| Grevena to Oxted | 1,283.05 mi (2,064.87 km) |
| Grevena to Padbury | 1,342.36 mi (2,160.32 km) |
| Grevena to Padiham | 1,454.44 mi (2,340.69 km) |
| Grevena to Paignton | 1,400.12 mi (2,253.28 km) |
| Grevena to Paisley | 1,600.10 mi (2,575.11 km) |
| Grevena to Palmers Green | 1,299.02 mi (2,090.57 km) |
| Grevena to Parkstone | 1,342.07 mi (2,159.85 km) |
| Grevena to Partick | 1,597.33 mi (2,570.66 km) |
| Grevena to Patcham | 1,275.84 mi (2,053.26 km) |
| Grevena to Peebles | 1,552.47 mi (2,498.45 km) |
| Grevena to Pelsall | 1,402.11 mi (2,256.48 km) |
