| Corning to Olympia Heights (Florida) | 1,149.97 mi (1,850.69 km) |
| Corning to Omaha (Nebraska) | 979.80 mi (1,576.84 km) |
| Corning to On Top of the World Designated Place (Florida) | 947.22 mi (1,524.41 km) |
| Corning to Onalaska (Wisconsin) | 724.01 mi (1,165.18 km) |
| Corning to Oneida (New York) | 95.66 mi (153.95 km) |
| Corning to Oneonta (New York) | 103.87 mi (167.16 km) |
| Corning to Ontario (California) | 2,252.45 mi (3,624.97 km) |
| Corning to Ontario (Oregon) | 1,998.81 mi (3,216.78 km) |
| Corning to Opa-locka (Florida) | 1,137.19 mi (1,830.13 km) |
| Corning to Opelika (Alabama) | 797.92 mi (1,284.13 km) |
| Corning to Opelousas (Louisiana) | 1,156.05 mi (1,860.49 km) |
| Corning to Orange (California) | 2,270.79 mi (3,654.49 km) |
| Corning to Orange (Texas) | 1,244.46 mi (2,002.76 km) |
| Corning to Orange City (Florida) | 943.03 mi (1,517.66 km) |
| Corning to Orangeburg (South Carolina) | 632.91 mi (1,018.56 km) |
