| Elko to Olympia Heights (Florida) | 2,276.21 mi (3,663.20 km) |
| Elko to Omaha (Nebraska) | 1,025.47 mi (1,650.33 km) |
| Elko to On Top of the World Designated Place (Florida) | 2,045.74 mi (3,292.30 km) |
| Elko to Onalaska (Wisconsin) | 1,266.60 mi (2,038.39 km) |
| Elko to Oneida (New York) | 2,046.78 mi (3,293.98 km) |
| Elko to Oneonta (New York) | 2,084.17 mi (3,354.14 km) |
| Elko to Ontario (California) | 480.42 mi (773.17 km) |
| Elko to Ontario (Oregon) | 228.70 mi (368.06 km) |
| Elko to Opa-locka (Florida) | 2,273.25 mi (3,658.45 km) |
| Elko to Opelika (Alabama) | 1,764.36 mi (2,839.46 km) |
| Elko to Opelousas (Louisiana) | 1,501.34 mi (2,416.17 km) |
| Elko to Orange (California) | 498.91 mi (802.92 km) |
| Elko to Orange (Texas) | 1,436.51 mi (2,311.84 km) |
| Elko to Orange City (Florida) | 2,103.04 mi (3,384.52 km) |
| Elko to Orangeburg (South Carolina) | 1,973.31 mi (3,175.74 km) |
