| Ermua to Oswego (Illinois) | 4,169.95 mi (6,710.89 km) |
| Ermua to Oswego (New York) | 3,588.23 mi (5,774.69 km) |
| Ermua to Otsego (Minnesota) | 4,253.77 mi (6,845.78 km) |
| Ermua to Ottawa (Illinois) | 4,203.54 mi (6,764.94 km) |
| Ermua to Ottawa (Kansas) | 4,591.44 mi (7,389.20 km) |
| Ermua to Ottumwa (Iowa) | 4,370.75 mi (7,034.04 km) |
| Ermua to Overland (Missouri) | 4,374.82 mi (7,040.59 km) |
| Ermua to Overland Park (Kansas) | 4,554.68 mi (7,330.05 km) |
| Ermua to Overlea (Maryland) | 3,723.66 mi (5,992.66 km) |
| Ermua to Oviedo (Florida) | 4,354.02 mi (7,007.11 km) |
| Ermua to Owasso (Oklahoma) | 4,714.12 mi (7,586.65 km) |
| Ermua to Owatonna (Minnesota) | 4,283.55 mi (6,893.71 km) |
| Ermua to Owensboro (Kentucky) | 4,267.28 mi (6,867.52 km) |
| Ermua to Owings Mills (Maryland) | 3,734.72 mi (6,010.45 km) |
| Ermua to Owosso (Michigan) | 3,941.70 mi (6,343.55 km) |
