| Gretz-Armainvilliers to Odessa (Texas) | 5,212.60 mi (8,388.87 km) |
| Gretz-Armainvilliers to Ogden (Utah) | 5,061.21 mi (8,145.24 km) |
| Gretz-Armainvilliers to Oildale (California) | 5,610.72 mi (9,029.57 km) |
| Gretz-Armainvilliers to Ojus (Florida) | 4,579.08 mi (7,369.31 km) |
| Gretz-Armainvilliers to Okemos (Michigan) | 3,988.49 mi (6,418.85 km) |
| Gretz-Armainvilliers to Oklahoma City (Oklahoma) | 4,842.35 mi (7,793.02 km) |
| Gretz-Armainvilliers to Okmulgee (Oklahoma) | 4,776.32 mi (7,686.74 km) |
| Gretz-Armainvilliers to Olathe (Kansas) | 4,570.25 mi (7,355.11 km) |
| Gretz-Armainvilliers to Old Jamestown (Missouri) | 4,395.41 mi (7,073.73 km) |
| Gretz-Armainvilliers to Oldsmar (Florida) | 4,588.70 mi (7,384.79 km) |
| Gretz-Armainvilliers to Olean (New York) | 3,774.00 mi (6,073.67 km) |
| Gretz-Armainvilliers to Olive Branch (Mississippi) | 4,561.53 mi (7,341.07 km) |
| Gretz-Armainvilliers to Olivehurst (California) | 5,479.85 mi (8,818.97 km) |
| Gretz-Armainvilliers to Olney (Maryland) | 3,840.98 mi (6,181.46 km) |
| Gretz-Armainvilliers to Olympia (Washington) | 5,060.41 mi (8,143.94 km) |
