| Azpeitia to Oswego (Illinois) | 4,180.31 mi (6,727.57 km) |
| Azpeitia to Oswego (New York) | 3,598.92 mi (5,791.90 km) |
| Azpeitia to Otsego (Minnesota) | 4,263.49 mi (6,861.42 km) |
| Azpeitia to Ottawa (Illinois) | 4,213.91 mi (6,781.63 km) |
| Azpeitia to Ottawa (Kansas) | 4,601.74 mi (7,405.78 km) |
| Azpeitia to Ottumwa (Iowa) | 4,380.97 mi (7,050.49 km) |
| Azpeitia to Overland (Missouri) | 4,385.36 mi (7,057.55 km) |
| Azpeitia to Overland Park (Kansas) | 4,564.99 mi (7,346.64 km) |
| Azpeitia to Overlea (Maryland) | 3,734.73 mi (6,010.46 km) |
| Azpeitia to Oviedo (Florida) | 4,365.57 mi (7,025.71 km) |
| Azpeitia to Owasso (Oklahoma) | 4,724.59 mi (7,603.49 km) |
| Azpeitia to Owatonna (Minnesota) | 4,293.42 mi (6,909.60 km) |
| Azpeitia to Owensboro (Kentucky) | 4,278.05 mi (6,884.85 km) |
| Azpeitia to Owings Mills (Maryland) | 3,745.77 mi (6,028.23 km) |
| Azpeitia to Owosso (Michigan) | 3,952.12 mi (6,360.32 km) |
