| Gentilly to Odessa (Texas) | 5,194.90 mi (8,360.39 km) |
| Gentilly to Ogden (Utah) | 5,045.03 mi (8,119.20 km) |
| Gentilly to Oildale (California) | 5,594.69 mi (9,003.79 km) |
| Gentilly to Ojus (Florida) | 4,560.66 mi (7,339.68 km) |
| Gentilly to Okemos (Michigan) | 3,970.59 mi (6,390.05 km) |
| Gentilly to Oklahoma City (Oklahoma) | 4,824.60 mi (7,764.45 km) |
| Gentilly to Okmulgee (Oklahoma) | 4,758.50 mi (7,658.06 km) |
| Gentilly to Olathe (Kansas) | 4,552.58 mi (7,326.68 km) |
| Gentilly to Old Jamestown (Missouri) | 4,377.51 mi (7,044.93 km) |
| Gentilly to Oldsmar (Florida) | 4,570.26 mi (7,355.12 km) |
| Gentilly to Olean (New York) | 3,755.85 mi (6,044.45 km) |
| Gentilly to Olive Branch (Mississippi) | 4,543.40 mi (7,311.90 km) |
| Gentilly to Olivehurst (California) | 5,464.46 mi (8,794.20 km) |
| Gentilly to Olney (Maryland) | 3,822.66 mi (6,151.98 km) |
| Gentilly to Olympia (Washington) | 5,046.05 mi (8,120.83 km) |
