| Gretz-Armainvilliers to Oswego (Illinois) | 4,187.95 mi (6,739.85 km) |
| Gretz-Armainvilliers to Oswego (New York) | 3,639.05 mi (5,856.49 km) |
| Gretz-Armainvilliers to Otsego (Minnesota) | 4,224.45 mi (6,798.60 km) |
| Gretz-Armainvilliers to Ottawa (Illinois) | 4,221.90 mi (6,794.49 km) |
| Gretz-Armainvilliers to Ottawa (Kansas) | 4,601.04 mi (7,404.66 km) |
| Gretz-Armainvilliers to Ottumwa (Iowa) | 4,376.39 mi (7,043.12 km) |
| Gretz-Armainvilliers to Overland (Missouri) | 4,405.43 mi (7,089.86 km) |
| Gretz-Armainvilliers to Overland Park (Kansas) | 4,564.96 mi (7,346.59 km) |
| Gretz-Armainvilliers to Overlea (Maryland) | 3,808.36 mi (6,128.97 km) |
| Gretz-Armainvilliers to Oviedo (Florida) | 4,494.65 mi (7,233.45 km) |
| Gretz-Armainvilliers to Owasso (Oklahoma) | 4,736.13 mi (7,622.06 km) |
| Gretz-Armainvilliers to Owatonna (Minnesota) | 4,264.19 mi (6,862.56 km) |
| Gretz-Armainvilliers to Owensboro (Kentucky) | 4,318.74 mi (6,950.34 km) |
| Gretz-Armainvilliers to Owings Mills (Maryland) | 3,817.90 mi (6,144.32 km) |
| Gretz-Armainvilliers to Owosso (Michigan) | 3,966.58 mi (6,383.59 km) |
