| Salcea to Olympia Heights (Florida) | 5,637.21 mi (9,072.21 km) |
| Salcea to Omaha (Nebraska) | 5,356.91 mi (8,621.11 km) |
| Salcea to On Top of the World Designated Place (Florida) | 5,537.30 mi (8,911.42 km) |
| Salcea to Onalaska (Wisconsin) | 5,063.62 mi (8,149.10 km) |
| Salcea to Oneida (New York) | 4,579.90 mi (7,370.64 km) |
| Salcea to Oneonta (New York) | 4,587.96 mi (7,383.61 km) |
| Salcea to Ontario (California) | 6,368.05 mi (10,248.38 km) |
| Salcea to Ontario (Oregon) | 5,722.14 mi (9,208.89 km) |
| Salcea to Opa-locka (Florida) | 5,624.61 mi (9,051.93 km) |
| Salcea to Opelika (Alabama) | 5,466.83 mi (8,798.01 km) |
| Salcea to Opelousas (Louisiana) | 5,826.19 mi (9,376.34 km) |
| Salcea to Orange (California) | 6,387.88 mi (10,280.30 km) |
| Salcea to Orange (Texas) | 5,907.72 mi (9,507.55 km) |
| Salcea to Orange City (Florida) | 5,507.06 mi (8,862.75 km) |
| Salcea to Orangeburg (South Carolina) | 5,253.42 mi (8,454.56 km) |
