| Boadilla del Monte to Oswego (Illinois) | 4,209.53 mi (6,774.59 km) |
| Boadilla del Monte to Oswego (New York) | 3,616.85 mi (5,820.76 km) |
| Boadilla del Monte to Otsego (Minnesota) | 4,313.36 mi (6,941.68 km) |
| Boadilla del Monte to Ottawa (Illinois) | 4,242.77 mi (6,828.08 km) |
| Boadilla del Monte to Ottawa (Kansas) | 4,632.48 mi (7,455.25 km) |
| Boadilla del Monte to Ottumwa (Iowa) | 4,414.65 mi (7,104.69 km) |
| Boadilla del Monte to Overland (Missouri) | 4,407.72 mi (7,093.54 km) |
| Boadilla del Monte to Overland Park (Kansas) | 4,595.61 mi (7,395.92 km) |
| Boadilla del Monte to Overlea (Maryland) | 3,736.07 mi (6,012.62 km) |
| Boadilla del Monte to Oviedo (Florida) | 4,336.70 mi (6,979.25 km) |
| Boadilla del Monte to Owasso (Oklahoma) | 4,749.10 mi (7,642.94 km) |
| Boadilla del Monte to Owatonna (Minnesota) | 4,338.73 mi (6,982.51 km) |
| Boadilla del Monte to Owensboro (Kentucky) | 4,291.48 mi (6,906.47 km) |
| Boadilla del Monte to Owings Mills (Maryland) | 3,747.74 mi (6,031.41 km) |
| Boadilla del Monte to Owosso (Michigan) | 3,979.57 mi (6,404.50 km) |
