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INTANGIBLE ASSETS OTHER THAN GOODWILL (Details) - Schedule of intangible assets - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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INTANGIBLE ASSETS OTHER THAN GOODWILL (Details) - Schedule of intangible assets [Line Items] |  |  |
Classes of intangible assets, net |  | $ 1,018,892 | $ 1,046,559
Classes of intangible assets, gross |  | 1,384,945 | 1,470,951
Airport slots [Member] |  |  |
INTANGIBLE ASSETS OTHER THAN GOODWILL (Details) - Schedule of intangible assets [Line Items] |  |  |
Classes of intangible assets, net |  | 587,214 | 627,742
Classes of intangible assets, gross |  | 587,214 | 627,742
Loyalty program [Member] |  |  |
INTANGIBLE ASSETS OTHER THAN GOODWILL (Details) - Schedule of intangible assets [Line Items] |  |  |
Classes of intangible assets, net |  | 190,542 | 204,615
Classes of intangible assets, gross |  | 190,542 | 204,615
Computer software [Member] |  |  |
INTANGIBLE ASSETS OTHER THAN GOODWILL (Details) - Schedule of intangible assets [Line Items] |  |  |
Classes of intangible assets, net |  | 136,135 | 139,113
Classes of intangible assets, gross |  | 463,478 | 528,097
Developing software [Member] |  |  |
INTANGIBLE ASSETS OTHER THAN GOODWILL (Details) - Schedule of intangible assets [Line Items] |  |  |
Classes of intangible assets, net |  | 104,874 | 68,521
Classes of intangible assets, gross |  | 105,673 | 69,379
Trademarks [Member] |  |  |
INTANGIBLE ASSETS OTHER THAN GOODWILL (Details) - Schedule of intangible assets [Line Items] |  |  |
Classes of intangible assets, net | [1] |  | 6,340
Classes of intangible assets, gross | [1] | 36,723 | 39,803
Other assets [Member] |  |  |
INTANGIBLE ASSETS OTHER THAN GOODWILL (Details) - Schedule of intangible assets [Line Items] |  |  |
Classes of intangible assets, net |  | 127 | 228
Classes of intangible assets, gross |  | $ 1,315 | $ 1,315
[1] | In 2016, the Company resolved to adopt a unique name and identity, and announced that the group’s brand will be LATAM, which united all the companies under a single image.

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