| Arenys de Mar to Orangevale (California) | 5,860.43 mi (9,431.44 km) |
| Arenys de Mar to Orchards (Washington) | 5,523.64 mi (8,889.45 km) |
| Arenys de Mar to Orcutt (California) | 6,038.49 mi (9,718.01 km) |
| Arenys de Mar to Oregon (Ohio) | 4,235.28 mi (6,816.03 km) |
| Arenys de Mar to Oregon (Wisconsin) | 4,443.55 mi (7,151.21 km) |
| Arenys de Mar to Oregon City (Oregon) | 5,544.30 mi (8,922.69 km) |
| Arenys de Mar to Orem (Utah) | 5,441.71 mi (8,757.58 km) |
| Arenys de Mar to Orinda (California) | 5,936.41 mi (9,553.73 km) |
| Arenys de Mar to Orland Park (Illinois) | 4,429.41 mi (7,128.44 km) |
| Arenys de Mar to Orlando (Florida) | 4,647.57 mi (7,479.54 km) |
| Arenys de Mar to Ormond Beach (Florida) | 4,602.63 mi (7,407.22 km) |
| Arenys de Mar to Oro Valley (Arizona) | 5,806.83 mi (9,345.19 km) |
| Arenys de Mar to Oroville (California) | 5,828.01 mi (9,379.28 km) |
| Arenys de Mar to Oshkosh (Wisconsin) | 4,367.10 mi (7,028.17 km) |
| Arenys de Mar to Oskaloosa (Iowa) | 4,644.76 mi (7,475.02 km) |
