| Salmon Creek to Olympia (Washington) | 92.68 mi (149.16 km) |
| Salmon Creek to Olympia Heights (Florida) | 2,703.08 mi (4,350.19 km) |
| Salmon Creek to Omaha (Nebraska) | 1,362.10 mi (2,192.09 km) |
| Salmon Creek to On Top of the World Designated Place (Florida) | 2,460.58 mi (3,959.92 km) |
| Salmon Creek to Onalaska (Wisconsin) | 1,537.35 mi (2,474.12 km) |
| Salmon Creek to Oneida (New York) | 2,294.09 mi (3,691.97 km) |
| Salmon Creek to Oneonta (New York) | 2,338.03 mi (3,762.69 km) |
| Salmon Creek to Ontario (California) | 849.31 mi (1,366.83 km) |
| Salmon Creek to Ontario (Oregon) | 301.73 mi (485.60 km) |
| Salmon Creek to Opa-locka (Florida) | 2,698.89 mi (4,343.44 km) |
| Salmon Creek to Opelika (Alabama) | 2,165.90 mi (3,485.69 km) |
| Salmon Creek to Opelousas (Louisiana) | 1,947.46 mi (3,134.13 km) |
| Salmon Creek to Orange (California) | 861.45 mi (1,386.38 km) |
| Salmon Creek to Orange (Texas) | 1,891.64 mi (3,044.31 km) |
| Salmon Creek to Orange City (Florida) | 2,514.91 mi (4,047.35 km) |
