| Leek to Orangevale (California) | 5,130.60 mi (8,256.90 km) |
| Leek to Orchards (Washington) | 4,763.06 mi (7,665.40 km) |
| Leek to Orcutt (California) | 5,328.19 mi (8,574.89 km) |
| Leek to Oregon (Ohio) | 3,678.15 mi (5,919.42 km) |
| Leek to Oregon (Wisconsin) | 3,842.00 mi (6,183.11 km) |
| Leek to Oregon City (Oregon) | 4,784.69 mi (7,700.22 km) |
| Leek to Orem (Utah) | 4,747.34 mi (7,640.10 km) |
| Leek to Orinda (California) | 5,205.61 mi (8,377.63 km) |
| Leek to Orland Park (Illinois) | 3,847.96 mi (6,192.69 km) |
| Leek to Orlando (Florida) | 4,240.10 mi (6,823.78 km) |
| Leek to Ormond Beach (Florida) | 4,188.59 mi (6,740.88 km) |
| Leek to Oro Valley (Arizona) | 5,159.95 mi (8,304.14 km) |
| Leek to Oroville (California) | 5,093.54 mi (8,197.26 km) |
| Leek to Oshkosh (Wisconsin) | 3,759.97 mi (6,051.09 km) |
| Leek to Oskaloosa (Iowa) | 4,040.05 mi (6,501.83 km) |
