| Portales to Norwich | 4,931.35 mi (7,936.25 km) |
| Portales to Nottingham | 4,832.60 mi (7,777.31 km) |
| Portales to Nuneaton | 4,836.25 mi (7,783.20 km) |
| Portales to Oadby | 4,847.74 mi (7,801.69 km) |
| Portales to Oakengates | 4,794.62 mi (7,716.19 km) |
| Portales to Oakham | 4,857.55 mi (7,817.47 km) |
| Portales to Oldbury | 4,816.99 mi (7,752.20 km) |
| Portales to Oldham | 4,777.52 mi (7,688.67 km) |
| Portales to Ollerton | 4,828.57 mi (7,770.83 km) |
| Portales to Olton | 4,826.98 mi (7,768.27 km) |
| Portales to Omagh | 4,558.31 mi (7,335.90 km) |
| Portales to Ormesby | 4,775.81 mi (7,685.92 km) |
| Portales to Ormskirk | 4,749.25 mi (7,643.18 km) |
| Portales to Orpington | 4,934.44 mi (7,941.22 km) |
| Portales to Ossett | 4,791.92 mi (7,711.86 km) |
