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TRANSACTIONS WITH RELATED PARTIES (Details) - Schedule of related party transactions - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Inversiones Costa Verde Ltda. y CPA. [Member] |  |  |
TRANSACTIONS WITH RELATED PARTIES (Details) - Schedule of related party transactions [Line Items] |  |  |
Tax No. | 96.810.370-9 |  |
Related party | Inversiones Costa Verde Ltda. y CPA. |  |
Nature of relationship with related parties | Related director |  |
Country of origin | Chile |  |
Nature of related parties transactions | Tickets sales |  |
Currency | CLP |  |
Transaction amount with related parties | $ 16 | $ 16 | $ 18
Comunidad Mujer [Member] |  |  |
TRANSACTIONS WITH RELATED PARTIES (Details) - Schedule of related party transactions [Line Items] |  |  |
Tax No. | 65.216.000-K |  |
Related party | Comunidad Mujer |  |
Nature of relationship with related parties | Related director |  |
Country of origin | Chile |  |
Nature of related parties transactions | Tickets sales |  |
Currency | CLP |  |
Transaction amount with related parties |  |  | 14
Bethia S.A and subsidiaries [Member] |  |  |
TRANSACTIONS WITH RELATED PARTIES (Details) - Schedule of related party transactions [Line Items] |  |  |
Tax No. | 78.591.370-1 |  |
Related party | Bethia S.A and subsidiaries |  |
Nature of relationship with related parties | Related director |  |
Country of origin | Chile |  |
Nature of related parties transactions | Services received of cargo transport |  |
Currency | CLP |  |
Transaction amount with related parties | $ 556 | 1,778 | 1,643
Bethia S.A and subsidiaries [Member] |  |  |
TRANSACTIONS WITH RELATED PARTIES (Details) - Schedule of related party transactions [Line Items] |  |  |
Nature of related parties transactions | Services received from National and International Courier |  |
Currency | CLP |  |
Transaction amount with related parties | $ (3) | (85) | (382)
Bethia S.A and subsidiaries [Member] |  |  |
TRANSACTIONS WITH RELATED PARTIES (Details) - Schedule of related party transactions [Line Items] |  |  |
Nature of related parties transactions | Services provided of cargo transport |  |
Currency | CLP |  |
Transaction amount with related parties |  |  | (17)
Bethia S.A and subsidiaries [Member] |  |  |
TRANSACTIONS WITH RELATED PARTIES (Details) - Schedule of related party transactions [Line Items] |  |  |
Nature of related parties transactions | Sales commissions |  |
Currency | CLP |  |
Transaction amount with related parties | $ (218) | (821) | (761)
Bethia S.A and subsidiaries [Member] |  |  |
TRANSACTIONS WITH RELATED PARTIES (Details) - Schedule of related party transactions [Line Items] |  |  |
Nature of related parties transactions | Services received advertising |  |
Currency | CLP |  |
Transaction amount with related parties | $ (726) | (1,025) |
Transportes San Felipe S.A [Member] |  |  |
TRANSACTIONS WITH RELATED PARTIES (Details) - Schedule of related party transactions [Line Items] |  |  |
Tax No. | 79.773.440-3 |  |
Related party | Transportes San Felipe S.A |  |
Nature of relationship with related parties | Related director |  |
Country of origin | Chile |  |
Nature of related parties transactions | Tickets sales |  |
Currency | CLP |  |
Transaction amount with related parties |  |  | 1
Granja Marina Tornagaleones S.A. [Member] |  |  |
TRANSACTIONS WITH RELATED PARTIES (Details) - Schedule of related party transactions [Line Items] |  |  |
Tax No. | 87.752.000-5 |  |
Related party | Granja Marina Tornagaleones S.A. |  |
Nature of relationship with related parties | Common shareholder |  |
Country of origin | Chile |  |
Nature of related parties transactions | Tickets sales |  |
Currency | CLP |  |
Transaction amount with related parties | $ 61 | 51 | 72
Consultoría Administrativa Profesional S.A. de C.V. [Member] |  |  |
TRANSACTIONS WITH RELATED PARTIES (Details) - Schedule of related party transactions [Line Items] |  |  |
Tax No. | Foreign |  |
Related party | Consultora Administrativa Profesional S.A. de C.V. |  |
Nature of relationship with related parties | Associate |  |
Country of origin | Mexico |  |
Nature of related parties transactions | Professional counseling services received |  |
Currency | MXN |  |
Transaction amount with related parties |  |  | (2,357)
Inmobiliaria Inversiones Asturias S.A. [Member] |  |  |
TRANSACTIONS WITH RELATED PARTIES (Details) - Schedule of related party transactions [Line Items] |  |  |
Tax No. | 96.782.530-1 |  |
Related party | Inmobiliaria Inversiones Asturias S.A. |  |
Nature of relationship with related parties | Related director |  |
Country of origin | Chile |  |
Nature of related parties transactions | Tickets sales |  |
Currency | CLP |  |
Transaction amount with related parties |  | 25 |
Parque de Chile S.A. [Member] |  |  |
TRANSACTIONS WITH RELATED PARTIES (Details) - Schedule of related party transactions [Line Items] |  |  |
Tax No. | 76.335.600-0 |  |
Related party | Parque de Chile S.A. |  |
Nature of relationship with related parties | Related director |  |
Country of origin | Chile |  |
Nature of related parties transactions | Tickets sales |  |
Currency | CLP |  |
Transaction amount with related parties | $ 9 | 20 |
Rio Dulce S.A. [Member] |  |  |
TRANSACTIONS WITH RELATED PARTIES (Details) - Schedule of related party transactions [Line Items] |  |  |
Tax No. | 96.989.370-3 |  |
Related party | Rio Dulce S.A. |  |
Nature of relationship with related parties | Related director |  |
Country of origin | Chile |  |
Nature of related parties transactions | Tickets sales |  |
Currency | CLP |  |
Transaction amount with related parties |  | 18 |
Inversora Aeronáutica Argentina [Member] |  |  |
TRANSACTIONS WITH RELATED PARTIES (Details) - Schedule of related party transactions [Line Items] |  |  |
Tax No. | Foreign |  |
Related party | Inversora Aeronutica Argentina |  |
Nature of relationship with related parties | Related director |  |
Country of origin | Argentina |  |
Nature of related parties transactions | Property leases received |  |
Currency | ARS$ |  |
Transaction amount with related parties |  | (231) | (251)
TAM Aviação Executiva e Taxi Aéreo S/A [Member] |  |  |
TRANSACTIONS WITH RELATED PARTIES (Details) - Schedule of related party transactions [Line Items] |  |  |
Tax No. | Foreign |  |
Related party | TAM Aviao Executiva e Taxi Areo S/A |  |
Nature of relationship with related parties | Common shareholder |  |
Country of origin | Brazil |  |
Nature of related parties transactions | Services provided |  |
Currency | BRL |  |
Transaction amount with related parties | $ 58 | 62 | 45
TAM Aviação Executiva e Taxi Aéreo S/A [Member] |  |  |
TRANSACTIONS WITH RELATED PARTIES (Details) - Schedule of related party transactions [Line Items] |  |  |
Nature of related parties transactions | Services received of cargo transport |  |
Currency | BRL |  |
Transaction amount with related parties | $ 2 | 8 |
TAM Aviação Executiva e Taxi Aéreo S/A [Member] |  |  |
TRANSACTIONS WITH RELATED PARTIES (Details) - Schedule of related party transactions [Line Items] |  |  |
Nature of related parties transactions | Services provided |  |
Currency | BRL |  |
Transaction amount with related parties | $ (10) |  |
TAM Aviação Executiva e Taxi Aéreo S/A [Member] |  |  |
TRANSACTIONS WITH RELATED PARTIES (Details) - Schedule of related party transactions [Line Items] |  |  |
Nature of related parties transactions | Services received at airports |  |
Currency | BRL |  |
Transaction amount with related parties |  | (2) | (39)
Qatar Airways [Member] |  |  |
TRANSACTIONS WITH RELATED PARTIES (Details) - Schedule of related party transactions [Line Items] |  |  |
Tax No. | Foreign |  |
Related party | Qatar Airways |  |
Nature of relationship with related parties | Indirect shareholder |  |
Country of origin | Qatar |  |
Nature of related parties transactions | Services provided by aircraft lease |  |
Currency | US$ |  |
Transaction amount with related parties | $ 39,528 | 21,321 | 31,707
Qatar Airways [Member] |  |  |
TRANSACTIONS WITH RELATED PARTIES (Details) - Schedule of related party transactions [Line Items] |  |  |
Nature of related parties transactions | Interlineal received service |  |
Currency | US$ |  |
Transaction amount with related parties | $ (2,050) | (6,345) | (2,139)
Qatar Airways [Member] |  |  |
TRANSACTIONS WITH RELATED PARTIES (Details) - Schedule of related party transactions [Line Items] |  |  |
Nature of related parties transactions | Interlineal provided service |  |
Currency | US$ |  |
Transaction amount with related parties | $ 3,739 | 8,635 | 5,279
Qatar Airways [Member] |  |  |
TRANSACTIONS WITH RELATED PARTIES (Details) - Schedule of related party transactions [Line Items] |  |  |
Nature of related parties transactions | Services provided of handling |  |
Currency | US$ |  |
Transaction amount with related parties | $ 1,106 | 1,392 | $ 1,002
Qatar Airways [Member] |  |  |
TRANSACTIONS WITH RELATED PARTIES (Details) - Schedule of related party transactions [Line Items] |  |  |
Nature of related parties transactions | Services provided / received others |  |
Currency | US$ |  |
Transaction amount with related parties | $ 996 | $ 1,805 |

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