Search for Malaysia Airlines Flight 370

The disappearance of Malaysia Airlines Flight 370^[a] led to a multinational search effort in Southeast Asia and the southern Indian Ocean that became the most expensive search in aviation history.^[2]

Despite delays, the search of the priority search area was to be completed around May 2015.^[3] On 29 July 2015, a piece of marine debris, later confirmed to be a flaperon from Flight 370, was found on Réunion Island.^[4][5][6]

On 20 December 2016, it was announced that an unsearched area of around 25,000 square kilometres (9,700 sq mi), and approximately centred on location 34°S 93°E / 34°S 93°E / -34; 93, was the most likely impact location for flight MH370.^[7] The search was suspended on 17 January 2017.^[8] In October 2017, the final drift study believed the most likely impact location to be at around 35°36′S 92°48′E / 35.6°S 92.8°E / -35.6; 92.8 (CSIRO crash area). The search based on these coordinates was resumed in January 2018 by Ocean Infinity, a private company; it ended in June 2018 without success.

In March 2022, Ocean Infinity committed to resuming its search in 2023 or 2024, pending approval by the Malaysian government.^[9]

Ships and aircraft from Malaysia, China, India, Japan, Australia, New Zealand, South Korea, Vietnam, the United Kingdom, and the United States were involved in the search of the southern Indian Ocean. Satellite imagery was also made available by Tomnod to the general public so they could help with the search through crowdsourcing efforts.

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