| Englefield Green to Orangevale (California) | 5,256.41 mi (8,459.38 km) |
| Englefield Green to Orchards (Washington) | 4,891.59 mi (7,872.25 km) |
| Englefield Green to Orcutt (California) | 5,452.11 mi (8,774.32 km) |
| Englefield Green to Oregon (Ohio) | 3,781.10 mi (6,085.09 km) |
| Englefield Green to Oregon (Wisconsin) | 3,951.33 mi (6,359.05 km) |
| Englefield Green to Oregon City (Oregon) | 4,913.15 mi (7,906.95 km) |
| Englefield Green to Orem (Utah) | 4,869.18 mi (7,836.18 km) |
| Englefield Green to Orinda (California) | 5,331.55 mi (8,580.30 km) |
| Englefield Green to Orland Park (Illinois) | 3,954.57 mi (6,364.27 km) |
| Englefield Green to Orlando (Florida) | 4,322.90 mi (6,957.04 km) |
| Englefield Green to Ormond Beach (Florida) | 4,272.22 mi (6,875.47 km) |
| Englefield Green to Oro Valley (Arizona) | 5,276.59 mi (8,491.86 km) |
| Englefield Green to Oroville (California) | 5,219.79 mi (8,400.45 km) |
| Englefield Green to Oshkosh (Wisconsin) | 3,869.91 mi (6,228.02 km) |
| Englefield Green to Oskaloosa (Iowa) | 4,150.09 mi (6,678.93 km) |
