| Horsell to Orangevale (California) | 5,261.72 mi (8,467.92 km) |
| Horsell to Orchards (Washington) | 4,897.27 mi (7,881.40 km) |
| Horsell to Orcutt (California) | 5,457.19 mi (8,782.50 km) |
| Horsell to Oregon (Ohio) | 3,784.36 mi (6,090.33 km) |
| Horsell to Oregon (Wisconsin) | 3,955.08 mi (6,365.09 km) |
| Horsell to Oregon City (Oregon) | 4,918.82 mi (7,916.08 km) |
| Horsell to Orem (Utah) | 4,874.04 mi (7,844.01 km) |
| Horsell to Orinda (California) | 5,336.88 mi (8,588.87 km) |
| Horsell to Orland Park (Illinois) | 3,958.11 mi (6,369.97 km) |
| Horsell to Orlando (Florida) | 4,324.73 mi (6,959.98 km) |
| Horsell to Ormond Beach (Florida) | 4,274.10 mi (6,878.50 km) |
| Horsell to Oro Valley (Arizona) | 5,280.96 mi (8,498.88 km) |
| Horsell to Oroville (California) | 5,225.16 mi (8,409.08 km) |
| Horsell to Oshkosh (Wisconsin) | 3,873.72 mi (6,234.15 km) |
| Horsell to Oskaloosa (Iowa) | 4,153.90 mi (6,685.06 km) |
