| Horley to Odessa (Texas) | 5,015.54 mi (8,071.73 km) |
| Horley to Ogden (Utah) | 4,851.95 mi (7,808.46 km) |
| Horley to Oildale (California) | 5,400.87 mi (8,691.86 km) |
| Horley to Ojus (Florida) | 4,419.29 mi (7,112.17 km) |
| Horley to Okemos (Michigan) | 3,795.15 mi (6,107.71 km) |
| Horley to Oklahoma City (Oklahoma) | 4,646.18 mi (7,477.31 km) |
| Horley to Okmulgee (Oklahoma) | 4,581.36 mi (7,372.99 km) |
| Horley to Olathe (Kansas) | 4,372.84 mi (7,037.40 km) |
| Horley to Old Jamestown (Missouri) | 4,201.98 mi (6,762.44 km) |
| Horley to Oldsmar (Florida) | 4,420.99 mi (7,114.90 km) |
| Horley to Olean (New York) | 3,587.16 mi (5,772.98 km) |
| Horley to Olive Branch (Mississippi) | 4,373.57 mi (7,038.58 km) |
| Horley to Olivehurst (California) | 5,268.49 mi (8,478.81 km) |
| Horley to Olney (Maryland) | 3,660.89 mi (5,891.63 km) |
| Horley to Olympia (Washington) | 4,848.48 mi (7,802.87 km) |
