| Horley to Orangevale (California) | 5,281.08 mi (8,499.08 km) |
| Horley to Orchards (Washington) | 4,916.15 mi (7,911.78 km) |
| Horley to Orcutt (California) | 5,476.76 mi (8,813.99 km) |
| Horley to Oregon (Ohio) | 3,804.14 mi (6,122.18 km) |
| Horley to Oregon (Wisconsin) | 3,975.01 mi (6,397.16 km) |
| Horley to Oregon City (Oregon) | 4,937.71 mi (7,946.48 km) |
| Horley to Orem (Utah) | 4,893.76 mi (7,875.75 km) |
| Horley to Orinda (California) | 5,356.22 mi (8,620.00 km) |
| Horley to Orland Park (Illinois) | 3,978.00 mi (6,401.97 km) |
| Horley to Orlando (Florida) | 4,343.48 mi (6,990.16 km) |
| Horley to Ormond Beach (Florida) | 4,292.91 mi (6,908.77 km) |
| Horley to Oro Valley (Arizona) | 5,300.88 mi (8,530.94 km) |
| Horley to Oroville (California) | 5,244.46 mi (8,440.14 km) |
| Horley to Oshkosh (Wisconsin) | 3,893.66 mi (6,266.24 km) |
| Horley to Oskaloosa (Iowa) | 4,173.84 mi (6,717.15 km) |
