| Ericeira to Odessa (Texas) | 5,018.89 mi (8,077.13 km) |
| Ericeira to Ogden (Utah) | 5,064.61 mi (8,150.70 km) |
| Ericeira to Oildale (California) | 5,614.93 mi (9,036.36 km) |
| Ericeira to Ojus (Florida) | 4,119.03 mi (6,628.94 km) |
| Ericeira to Okemos (Michigan) | 3,796.12 mi (6,109.27 km) |
| Ericeira to Oklahoma City (Oklahoma) | 4,649.99 mi (7,483.43 km) |
| Ericeira to Okmulgee (Oklahoma) | 4,572.99 mi (7,359.51 km) |
| Ericeira to Olathe (Kansas) | 4,400.48 mi (7,081.88 km) |
| Ericeira to Old Jamestown (Missouri) | 4,188.96 mi (6,741.48 km) |
| Ericeira to Oldsmar (Florida) | 4,175.51 mi (6,719.83 km) |
| Ericeira to Olean (New York) | 3,529.97 mi (5,680.93 km) |
| Ericeira to Olive Branch (Mississippi) | 4,298.11 mi (6,917.15 km) |
| Ericeira to Olivehurst (California) | 5,546.42 mi (8,926.09 km) |
| Ericeira to Olney (Maryland) | 3,539.41 mi (5,696.13 km) |
| Ericeira to Olympia (Washington) | 5,221.83 mi (8,403.72 km) |
