| Elmont to Olympia Heights (Florida) | 1,102.78 mi (1,774.75 km) |
| Elmont to Omaha (Nebraska) | 1,162.92 mi (1,871.54 km) |
| Elmont to On Top of the World Designated Place (Florida) | 936.09 mi (1,506.49 km) |
| Elmont to Onalaska (Wisconsin) | 919.11 mi (1,479.16 km) |
| Elmont to Oneida (New York) | 192.34 mi (309.55 km) |
| Elmont to Oneonta (New York) | 139.93 mi (225.20 km) |
| Elmont to Ontario (California) | 2,428.24 mi (3,907.87 km) |
| Elmont to Ontario (Oregon) | 2,195.32 mi (3,533.03 km) |
| Elmont to Opa-locka (Florida) | 1,089.61 mi (1,753.56 km) |
| Elmont to Opelika (Alabama) | 851.16 mi (1,369.81 km) |
| Elmont to Opelousas (Louisiana) | 1,244.76 mi (2,003.25 km) |
| Elmont to Orange (California) | 2,446.17 mi (3,936.74 km) |
| Elmont to Orange (Texas) | 1,340.14 mi (2,156.75 km) |
| Elmont to Orange City (Florida) | 918.89 mi (1,478.82 km) |
| Elmont to Orangeburg (South Carolina) | 635.01 mi (1,021.94 km) |
