| Longford to Orangevale (California) | 4,927.31 mi (7,929.74 km) |
| Longford to Orchards (Washington) | 4,572.06 mi (7,358.02 km) |
| Longford to Orcutt (California) | 5,118.84 mi (8,237.98 km) |
| Longford to Oregon (Ohio) | 3,440.58 mi (5,537.08 km) |
| Longford to Oregon (Wisconsin) | 3,609.07 mi (5,808.24 km) |
| Longford to Oregon City (Oregon) | 4,593.25 mi (7,392.11 km) |
| Longford to Orem (Utah) | 4,532.84 mi (7,294.90 km) |
| Longford to Orinda (California) | 5,002.75 mi (8,051.15 km) |
| Longford to Orland Park (Illinois) | 3,612.79 mi (5,814.22 km) |
| Longford to Orlando (Florida) | 3,998.69 mi (6,435.27 km) |
| Longford to Ormond Beach (Florida) | 3,947.11 mi (6,352.25 km) |
| Longford to Oro Valley (Arizona) | 4,935.65 mi (7,943.16 km) |
| Longford to Oroville (California) | 4,891.88 mi (7,872.72 km) |
| Longford to Oshkosh (Wisconsin) | 3,527.61 mi (5,677.15 km) |
| Longford to Oskaloosa (Iowa) | 3,807.79 mi (6,128.05 km) |
