| Royal Leamington Spa to Odessa (Texas) | 4,927.06 mi (7,929.34 km) |
| Royal Leamington Spa to Ogden (Utah) | 4,757.02 mi (7,655.69 km) |
| Royal Leamington Spa to Oildale (California) | 5,305.58 mi (8,538.51 km) |
| Royal Leamington Spa to Ojus (Florida) | 4,349.51 mi (6,999.87 km) |
| Royal Leamington Spa to Okemos (Michigan) | 3,708.84 mi (5,968.80 km) |
| Royal Leamington Spa to Oklahoma City (Oklahoma) | 4,558.22 mi (7,335.74 km) |
| Royal Leamington Spa to Okmulgee (Oklahoma) | 4,494.03 mi (7,232.45 km) |
| Royal Leamington Spa to Olathe (Kansas) | 4,284.28 mi (6,894.89 km) |
| Royal Leamington Spa to Old Jamestown (Missouri) | 4,115.52 mi (6,623.29 km) |
| Royal Leamington Spa to Oldsmar (Florida) | 4,347.33 mi (6,996.35 km) |
| Royal Leamington Spa to Olean (New York) | 3,504.26 mi (5,639.56 km) |
| Royal Leamington Spa to Olive Branch (Mississippi) | 4,289.84 mi (6,903.83 km) |
| Royal Leamington Spa to Olivehurst (California) | 5,172.27 mi (8,323.96 km) |
| Royal Leamington Spa to Olney (Maryland) | 3,581.39 mi (5,763.69 km) |
| Royal Leamington Spa to Olympia (Washington) | 4,751.65 mi (7,647.05 km) |
