| Rio Grande City to Oswaldtwistle | 5,016.43 mi (8,073.16 km) |
| Rio Grande City to Oswestry | 5,012.82 mi (8,067.35 km) |
| Rio Grande City to Otley | 5,039.17 mi (8,109.77 km) |
| Rio Grande City to Ovenden | 5,036.03 mi (8,104.71 km) |
| Rio Grande City to Oxford | 5,111.61 mi (8,226.34 km) |
| Rio Grande City to Oxted | 5,174.53 mi (8,327.59 km) |
| Rio Grande City to Padbury | 5,117.85 mi (8,236.38 km) |
| Rio Grande City to Padiham | 5,018.21 mi (8,076.03 km) |
| Rio Grande City to Paignton | 5,052.64 mi (8,131.43 km) |
| Rio Grande City to Paisley | 4,890.68 mi (7,870.80 km) |
| Rio Grande City to Palmers Green | 5,160.53 mi (8,305.08 km) |
| Rio Grande City to Parkstone | 5,111.33 mi (8,225.89 km) |
| Rio Grande City to Partick | 4,894.22 mi (7,876.49 km) |
| Rio Grande City to Patcham | 5,179.62 mi (8,335.80 km) |
| Rio Grande City to Peebles | 4,940.43 mi (7,950.85 km) |
