| Cernay to Olympia Heights (Florida) | 4,812.12 mi (7,744.35 km) |
| Cernay to Omaha (Nebraska) | 4,704.82 mi (7,571.68 km) |
| Cernay to On Top of the World Designated Place (Florida) | 4,735.49 mi (7,621.04 km) |
| Cernay to Onalaska (Wisconsin) | 4,401.34 mi (7,083.27 km) |
| Cernay to Oneida (New York) | 3,831.00 mi (6,165.40 km) |
| Cernay to Oneonta (New York) | 3,831.86 mi (6,166.78 km) |
| Cernay to Ontario (California) | 5,832.89 mi (9,387.12 km) |
| Cernay to Ontario (Oregon) | 5,243.45 mi (8,438.51 km) |
| Cernay to Opa-locka (Florida) | 4,799.91 mi (7,724.71 km) |
| Cernay to Opelika (Alabama) | 4,698.16 mi (7,560.96 km) |
| Cernay to Opelousas (Louisiana) | 5,081.57 mi (8,178.00 km) |
| Cernay to Orange (California) | 5,853.27 mi (9,419.93 km) |
| Cernay to Orange (Texas) | 5,170.60 mi (8,321.28 km) |
| Cernay to Orange City (Florida) | 4,700.05 mi (7,564.00 km) |
| Cernay to Orangeburg (South Carolina) | 4,467.65 mi (7,189.99 km) |
