| Plattsburgh to Olympia (Washington) | 2,344.25 mi (3,772.70 km) |
| Plattsburgh to Olympia Heights (Florida) | 1,365.86 mi (2,198.14 km) |
| Plattsburgh to Omaha (Nebraska) | 1,162.60 mi (1,871.02 km) |
| Plattsburgh to On Top of the World Designated Place (Florida) | 1,180.71 mi (1,900.17 km) |
| Plattsburgh to Onalaska (Wisconsin) | 877.94 mi (1,412.90 km) |
| Plattsburgh to Oneida (New York) | 156.73 mi (252.23 km) |
| Plattsburgh to Oneonta (New York) | 174.49 mi (280.82 km) |
| Plattsburgh to Ontario (California) | 2,437.49 mi (3,922.75 km) |
| Plattsburgh to Ontario (Oregon) | 2,124.34 mi (3,418.80 km) |
| Plattsburgh to Opa-locka (Florida) | 1,352.80 mi (2,177.12 km) |
| Plattsburgh to Opelika (Alabama) | 1,048.68 mi (1,687.68 km) |
| Plattsburgh to Opelousas (Louisiana) | 1,406.98 mi (2,264.31 km) |
| Plattsburgh to Orange (California) | 2,456.47 mi (3,953.30 km) |
| Plattsburgh to Orange (Texas) | 1,494.05 mi (2,404.45 km) |
| Plattsburgh to Orange City (Florida) | 1,170.53 mi (1,883.79 km) |
