| Grodzisk Mazowiecki to Oswego (Illinois) | 4,693.29 mi (7,553.12 km) |
| Grodzisk Mazowiecki to Oswego (New York) | 4,202.73 mi (6,763.65 km) |
| Grodzisk Mazowiecki to Otsego (Minnesota) | 4,661.80 mi (7,502.44 km) |
| Grodzisk Mazowiecki to Ottawa (Illinois) | 4,726.78 mi (7,607.02 km) |
| Grodzisk Mazowiecki to Ottawa (Kansas) | 5,083.36 mi (8,180.88 km) |
| Grodzisk Mazowiecki to Ottumwa (Iowa) | 4,859.36 mi (7,820.39 km) |
| Grodzisk Mazowiecki to Overland (Missouri) | 4,921.89 mi (7,921.02 km) |
| Grodzisk Mazowiecki to Overland Park (Kansas) | 5,049.20 mi (8,125.90 km) |
| Grodzisk Mazowiecki to Overlea (Maryland) | 4,408.22 mi (7,094.34 km) |
| Grodzisk Mazowiecki to Oviedo (Florida) | 5,143.76 mi (8,278.08 km) |
| Grodzisk Mazowiecki to Owasso (Oklahoma) | 5,232.23 mi (8,420.45 km) |
| Grodzisk Mazowiecki to Owatonna (Minnesota) | 4,714.84 mi (7,587.80 km) |
| Grodzisk Mazowiecki to Owensboro (Kentucky) | 4,864.92 mi (7,829.33 km) |
| Grodzisk Mazowiecki to Owings Mills (Maryland) | 4,415.74 mi (7,106.44 km) |
| Grodzisk Mazowiecki to Owosso (Michigan) | 4,487.50 mi (7,221.94 km) |
