| Gentilly to Oswego (Illinois) | 4,170.16 mi (6,711.22 km) |
| Gentilly to Oswego (New York) | 3,620.92 mi (5,827.31 km) |
| Gentilly to Otsego (Minnesota) | 4,207.26 mi (6,770.94 km) |
| Gentilly to Ottawa (Illinois) | 4,204.11 mi (6,765.86 km) |
| Gentilly to Ottawa (Kansas) | 4,583.38 mi (7,376.23 km) |
| Gentilly to Ottumwa (Iowa) | 4,358.75 mi (7,014.74 km) |
| Gentilly to Overland (Missouri) | 4,387.53 mi (7,061.05 km) |
| Gentilly to Overland Park (Kansas) | 4,547.28 mi (7,318.15 km) |
| Gentilly to Overlea (Maryland) | 3,790.04 mi (6,099.48 km) |
| Gentilly to Oviedo (Florida) | 4,476.22 mi (7,203.78 km) |
| Gentilly to Owasso (Oklahoma) | 4,718.34 mi (7,593.44 km) |
| Gentilly to Owatonna (Minnesota) | 4,246.86 mi (6,834.67 km) |
| Gentilly to Owensboro (Kentucky) | 4,300.65 mi (6,921.23 km) |
| Gentilly to Owings Mills (Maryland) | 3,799.58 mi (6,114.84 km) |
| Gentilly to Owosso (Michigan) | 3,948.69 mi (6,354.81 km) |
