| Ribeira Grande to Oswego (Illinois) | 3,273.09 mi (5,267.53 km) |
| Ribeira Grande to Oswego (New York) | 2,659.42 mi (4,279.93 km) |
| Ribeira Grande to Otsego (Minnesota) | 3,454.02 mi (5,558.71 km) |
| Ribeira Grande to Ottawa (Illinois) | 3,304.02 mi (5,317.31 km) |
| Ribeira Grande to Ottawa (Kansas) | 3,689.51 mi (5,937.69 km) |
| Ribeira Grande to Ottumwa (Iowa) | 3,488.40 mi (5,614.03 km) |
| Ribeira Grande to Overland (Missouri) | 3,441.47 mi (5,538.51 km) |
| Ribeira Grande to Overland Park (Kansas) | 3,653.22 mi (5,879.28 km) |
| Ribeira Grande to Overlea (Maryland) | 2,719.15 mi (4,376.05 km) |
| Ribeira Grande to Oviedo (Florida) | 3,231.21 mi (5,200.13 km) |
| Ribeira Grande to Owasso (Oklahoma) | 3,781.72 mi (6,086.09 km) |
| Ribeira Grande to Owatonna (Minnesota) | 3,459.83 mi (5,568.05 km) |
| Ribeira Grande to Owensboro (Kentucky) | 3,298.55 mi (5,308.51 km) |
| Ribeira Grande to Owings Mills (Maryland) | 2,732.49 mi (4,397.51 km) |
| Ribeira Grande to Owosso (Michigan) | 3,044.04 mi (4,898.91 km) |
