Johnston Atoll Airport is located on the Johnston Atoll in the United States Minor Outlying Islands, in the Pacific Ocean 717 nautical miles (1328 kilometers) southwest of Hawaii. It was an active U.S. military facility during the 20th century, but the airport was shut down in 2005 and the runway is not maintained. Although no longer a diversion airport, it is still considered preferable to a dangerous water landing in an extreme emergency.