| Arenys de Mar to Odessa (Texas) | 5,472.71 mi (8,807.48 km) |
| Arenys de Mar to Ogden (Utah) | 5,405.31 mi (8,699.01 km) |
| Arenys de Mar to Oildale (California) | 5,958.74 mi (9,589.67 km) |
| Arenys de Mar to Ojus (Florida) | 4,693.17 mi (7,552.93 km) |
| Arenys de Mar to Okemos (Michigan) | 4,239.81 mi (6,823.31 km) |
| Arenys de Mar to Oklahoma City (Oklahoma) | 5,100.52 mi (8,208.49 km) |
| Arenys de Mar to Okmulgee (Oklahoma) | 5,028.81 mi (8,093.09 km) |
| Arenys de Mar to Olathe (Kansas) | 4,836.92 mi (7,784.27 km) |
| Arenys de Mar to Old Jamestown (Missouri) | 4,643.53 mi (7,473.03 km) |
| Arenys de Mar to Oldsmar (Florida) | 4,730.30 mi (7,612.69 km) |
| Arenys de Mar to Olean (New York) | 3,998.56 mi (6,435.06 km) |
| Arenys de Mar to Olive Branch (Mississippi) | 4,783.12 mi (7,697.69 km) |
| Arenys de Mar to Olivehurst (California) | 5,850.53 mi (9,415.52 km) |
| Arenys de Mar to Olney (Maryland) | 4,037.33 mi (6,497.46 km) |
| Arenys de Mar to Olympia (Washington) | 5,461.22 mi (8,788.98 km) |
