| Plover to Olympia (Washington) | 1,605.75 mi (2,584.21 km) |
| Plover to Olympia Heights (Florida) | 1,392.96 mi (2,241.76 km) |
| Plover to Omaha (Nebraska) | 396.93 mi (638.79 km) |
| Plover to On Top of the World Designated Place (Florida) | 1,133.15 mi (1,823.63 km) |
| Plover to Onalaska (Wisconsin) | 91.71 mi (147.59 km) |
| Plover to Oneida (New York) | 698.05 mi (1,123.40 km) |
| Plover to Oneonta (New York) | 737.88 mi (1,187.51 km) |
| Plover to Ontario (California) | 1,654.37 mi (2,662.45 km) |
| Plover to Ontario (Oregon) | 1,352.03 mi (2,175.88 km) |
| Plover to Opa-locka (Florida) | 1,383.26 mi (2,226.14 km) |
| Plover to Opelika (Alabama) | 845.44 mi (1,360.60 km) |
| Plover to Opelousas (Louisiana) | 972.81 mi (1,565.59 km) |
| Plover to Orange (California) | 1,673.74 mi (2,693.63 km) |
| Plover to Orange (Texas) | 1,017.16 mi (1,636.96 km) |
| Plover to Orange City (Florida) | 1,164.57 mi (1,874.19 km) |
