| Guimar to Oswego (Illinois) | 4,056.36 mi (6,528.08 km) |
| Guimar to Oswego (New York) | 3,443.83 mi (5,542.30 km) |
| Guimar to Otsego (Minnesota) | 4,262.94 mi (6,860.54 km) |
| Guimar to Ottawa (Illinois) | 4,085.77 mi (6,575.42 km) |
| Guimar to Ottawa (Kansas) | 4,463.49 mi (7,183.30 km) |
| Guimar to Ottumwa (Iowa) | 4,272.91 mi (6,876.59 km) |
| Guimar to Overland (Missouri) | 4,207.48 mi (6,771.28 km) |
| Guimar to Overland Park (Kansas) | 4,428.00 mi (7,126.18 km) |
| Guimar to Overlea (Maryland) | 3,468.83 mi (5,582.54 km) |
| Guimar to Oviedo (Florida) | 3,881.26 mi (6,246.28 km) |
| Guimar to Owasso (Oklahoma) | 4,541.67 mi (7,309.11 km) |
| Guimar to Owatonna (Minnesota) | 4,262.60 mi (6,859.99 km) |
| Guimar to Owensboro (Kentucky) | 4,051.71 mi (6,520.60 km) |
| Guimar to Owings Mills (Maryland) | 3,482.97 mi (5,605.30 km) |
| Guimar to Owosso (Michigan) | 3,831.34 mi (6,165.94 km) |
