| Cernavoda to Oswego (Illinois) | 5,309.77 mi (8,545.26 km) |
| Cernavoda to Oswego (New York) | 4,801.36 mi (7,727.05 km) |
| Cernavoda to Otsego (Minnesota) | 5,290.26 mi (8,513.86 km) |
| Cernavoda to Ottawa (Illinois) | 5,343.47 mi (8,599.48 km) |
| Cernavoda to Ottawa (Kansas) | 5,705.67 mi (9,182.38 km) |
| Cernavoda to Ottumwa (Iowa) | 5,480.99 mi (8,820.79 km) |
| Cernavoda to Overland (Missouri) | 5,536.41 mi (8,909.98 km) |
| Cernavoda to Overland Park (Kansas) | 5,671.05 mi (9,126.68 km) |
| Cernavoda to Overlea (Maryland) | 4,994.16 mi (8,037.33 km) |
| Cernavoda to Oviedo (Florida) | 5,708.05 mi (9,186.22 km) |
| Cernavoda to Owasso (Oklahoma) | 5,852.16 mi (9,418.15 km) |
| Cernavoda to Owatonna (Minnesota) | 5,341.58 mi (8,596.44 km) |
| Cernavoda to Owensboro (Kentucky) | 5,471.22 mi (8,805.08 km) |
| Cernavoda to Owings Mills (Maryland) | 5,002.53 mi (8,050.80 km) |
| Cernavoda to Owosso (Michigan) | 5,099.61 mi (8,207.03 km) |
