| Gentilly to Orangevale (California) | 5,476.85 mi (8,814.13 km) |
| Gentilly to Orchards (Washington) | 5,113.55 mi (8,229.47 km) |
| Gentilly to Orcutt (California) | 5,671.01 mi (9,126.60 km) |
| Gentilly to Oregon (Ohio) | 3,977.08 mi (6,400.49 km) |
| Gentilly to Oregon (Wisconsin) | 4,154.99 mi (6,686.81 km) |
| Gentilly to Oregon City (Oregon) | 5,135.09 mi (8,264.12 km) |
| Gentilly to Orem (Utah) | 5,086.25 mi (8,185.53 km) |
| Gentilly to Orinda (California) | 5,552.07 mi (8,935.20 km) |
| Gentilly to Orland Park (Illinois) | 4,154.96 mi (6,686.76 km) |
| Gentilly to Orlando (Florida) | 4,491.42 mi (7,228.24 km) |
| Gentilly to Ormond Beach (Florida) | 4,441.96 mi (7,148.65 km) |
| Gentilly to Oro Valley (Arizona) | 5,488.17 mi (8,832.35 km) |
| Gentilly to Oroville (California) | 5,440.54 mi (8,755.70 km) |
| Gentilly to Oshkosh (Wisconsin) | 4,074.36 mi (6,557.05 km) |
| Gentilly to Oskaloosa (Iowa) | 4,354.49 mi (7,007.88 km) |
