| Sfantu-Gheorghe to Oswego (Illinois) | 5,157.85 mi (8,300.77 km) |
| Sfantu-Gheorghe to Oswego (New York) | 4,649.62 mi (7,482.83 km) |
| Sfantu-Gheorghe to Otsego (Minnesota) | 5,139.50 mi (8,271.22 km) |
| Sfantu-Gheorghe to Ottawa (Illinois) | 5,191.55 mi (8,355.00 km) |
| Sfantu-Gheorghe to Ottawa (Kansas) | 5,554.05 mi (8,938.39 km) |
| Sfantu-Gheorghe to Ottumwa (Iowa) | 5,329.33 mi (8,576.73 km) |
| Sfantu-Gheorghe to Overland (Missouri) | 5,384.43 mi (8,665.40 km) |
| Sfantu-Gheorghe to Overland Park (Kansas) | 5,519.41 mi (8,882.63 km) |
| Sfantu-Gheorghe to Overlea (Maryland) | 4,843.14 mi (7,794.28 km) |
| Sfantu-Gheorghe to Oviedo (Florida) | 5,559.04 mi (8,946.41 km) |
| Sfantu-Gheorghe to Owasso (Oklahoma) | 5,700.38 mi (9,173.87 km) |
| Sfantu-Gheorghe to Owatonna (Minnesota) | 5,190.50 mi (8,353.31 km) |
| Sfantu-Gheorghe to Owensboro (Kentucky) | 5,319.27 mi (8,560.53 km) |
| Sfantu-Gheorghe to Owings Mills (Maryland) | 4,851.45 mi (7,807.65 km) |
| Sfantu-Gheorghe to Owosso (Michigan) | 4,947.61 mi (7,962.41 km) |
