| Watervliet to Olympia (Washington) | 2,386.50 mi (3,840.69 km) |
| Watervliet to Olympia Heights (Florida) | 1,233.16 mi (1,984.57 km) |
| Watervliet to Omaha (Nebraska) | 1,148.57 mi (1,848.44 km) |
| Watervliet to On Top of the World Designated Place (Florida) | 1,054.96 mi (1,697.79 km) |
| Watervliet to Onalaska (Wisconsin) | 881.92 mi (1,419.31 km) |
| Watervliet to Oneida (New York) | 101.92 mi (164.03 km) |
| Watervliet to Oneonta (New York) | 71.63 mi (115.27 km) |
| Watervliet to Ontario (California) | 2,423.30 mi (3,899.93 km) |
| Watervliet to Ontario (Oregon) | 2,149.76 mi (3,459.71 km) |
| Watervliet to Opa-locka (Florida) | 1,220.05 mi (1,963.48 km) |
| Watervliet to Opelika (Alabama) | 941.85 mi (1,515.76 km) |
| Watervliet to Opelousas (Louisiana) | 1,317.18 mi (2,119.80 km) |
| Watervliet to Orange (California) | 2,441.80 mi (3,929.70 km) |
| Watervliet to Orange (Texas) | 1,408.33 mi (2,266.49 km) |
| Watervliet to Orange City (Florida) | 1,042.01 mi (1,676.96 km) |
