| Isperih to Oswego (Illinois) | 5,299.62 mi (8,528.92 km) |
| Isperih to Oswego (New York) | 4,784.73 mi (7,700.28 km) |
| Isperih to Otsego (Minnesota) | 5,286.98 mi (8,508.58 km) |
| Isperih to Ottawa (Illinois) | 5,333.39 mi (8,583.25 km) |
| Isperih to Ottawa (Kansas) | 5,698.24 mi (9,170.44 km) |
| Isperih to Ottumwa (Iowa) | 5,473.30 mi (8,808.42 km) |
| Isperih to Overland (Missouri) | 5,525.23 mi (8,892.01 km) |
| Isperih to Overland Park (Kansas) | 5,663.40 mi (9,114.36 km) |
| Isperih to Overlea (Maryland) | 4,973.57 mi (8,004.19 km) |
| Isperih to Oviedo (Florida) | 5,681.40 mi (9,143.33 km) |
| Isperih to Owasso (Oklahoma) | 5,843.40 mi (9,404.04 km) |
| Isperih to Owatonna (Minnesota) | 5,337.04 mi (8,589.13 km) |
| Isperih to Owensboro (Kentucky) | 5,456.79 mi (8,781.85 km) |
| Isperih to Owings Mills (Maryland) | 4,982.17 mi (8,018.03 km) |
| Isperih to Owosso (Michigan) | 5,087.67 mi (8,187.82 km) |
