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OTHER INCOME, BY FUNCTION (Tables) | 12 Months Ended
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Dec. 31, 2018
Material income and expense [abstract] |
Schedule of other income by function | Other income by function is as follows:
|  | For the year ended |
|  | December 31, |
|  | 2018 |  |  | 2017 |  |  | 2016 |
|  | ThUS$ |  |  | ThUS$ |  |  | ThUS$ |
Coalition and loyalty program Multiplus |  |  | 126,443 |  |  |  | 240,952 |  |  |  | 174,197 |
Tours |  |  | 108,448 |  |  |  | 109,463 |  |  |  | 133,575 |
Aircraft leasing |  |  | 78,056 |  |  |  | 103,741 |  |  |  | 65,011 |
Customs and warehousing |  |  | 26,667 |  |  |  | 26,793 |  |  |  | 24,548 |
Maintenance |  |  | 16,569 |  |  |  | 8,038 |  |  |  | 11,141 |
Duty free |  |  | 3,555 |  |  |  | 6,585 |  |  |  | 17,090 |
Other miscellaneous income |  |  | 113,020 |  |  |  | 54,317 |  |  |  | 113,186 |
Total |  |  | 472,758 |  |  |  | 549,889 |  |  |  | 538,748 |

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