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Material accounting policies - Schedule of Significant Subsidiaries (Detail)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Panama | Copa Airlines
Disclosure of information about unconsolidated subsidiaries [line items]
Ownership interest	99.90%	99.90%
Panama | LNA
Disclosure of information about unconsolidated subsidiaries [line items]
Ownership interest	100.00%	100.00%
Colombia | AeroRepública
Disclosure of information about unconsolidated subsidiaries [line items]
Ownership interest	99.90%	99.90%
British Virgin Islands | Oval
Disclosure of information about unconsolidated subsidiaries [line items]
Ownership interest	100.00%	100.00%

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

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- Definition

The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Total for all subsidiaries [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2025-01-01
-Paragraph 17
-Subparagraph b
-Clause iii
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-URIDate 2025-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2025-01-01
-Paragraph 16
-Subparagraph b
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-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2025-en-r&anchor=para_16_b_iii&doctype=Standard
-URIDate 2025-03-27

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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-IssueDate 2025-01-01
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-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2025-en-r&anchor=para_19B_c&doctype=Standard
-URIDate 2025-03-27

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