| Samokov to Oswego (Illinois) | 5,250.62 mi (8,450.05 km) |
| Samokov to Oswego (New York) | 4,720.17 mi (7,596.38 km) |
| Samokov to Otsego (Minnesota) | 5,255.56 mi (8,458.01 km) |
| Samokov to Ottawa (Illinois) | 5,284.52 mi (8,504.61 km) |
| Samokov to Ottawa (Kansas) | 5,655.56 mi (9,101.74 km) |
| Samokov to Ottumwa (Iowa) | 5,430.30 mi (8,739.22 km) |
| Samokov to Overland (Missouri) | 5,473.29 mi (8,808.42 km) |
| Samokov to Overland Park (Kansas) | 5,620.18 mi (9,044.81 km) |
| Samokov to Overlea (Maryland) | 4,898.77 mi (7,883.81 km) |
| Samokov to Oviedo (Florida) | 5,590.57 mi (8,997.15 km) |
| Samokov to Owasso (Oklahoma) | 5,797.08 mi (9,329.49 km) |
| Samokov to Owatonna (Minnesota) | 5,302.30 mi (8,533.23 km) |
| Samokov to Owensboro (Kentucky) | 5,396.70 mi (8,685.14 km) |
| Samokov to Owings Mills (Maryland) | 4,907.93 mi (7,898.55 km) |
| Samokov to Owosso (Michigan) | 5,034.49 mi (8,102.23 km) |
