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Income tax incurred and deferred: (Tables) | 12 Months Ended
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Dec. 31, 2021
Income tax incurred and deferred: |
Schedule of IT provision - Mexico | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31,
​ |  | 2019 |  | 2020 |  | 2021
Mexico: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Current IT | ​ | Ps. | 1,864,384 | ​ | Ps. | 631,471 | ​ | Ps. | 1,749,031
Deferred IT | ​ |  | 57,023 | ​ |  | 117,924 | ​ | ​ | (128,254)
IT provision Mexico | ​ | Ps. | 1,921,407 | ​ | Ps. | 749,395 | ​ | Ps. | 1,620,777
Aerostar: | ​ |  |  | ​ |  |  | ​ |  |
Current Income Tax | ​ | Ps. | 433 | ​ | Ps. | (16) | ​ | Ps. | 886
Deferred Income Tax | ​ | ​ | 38,146 | ​ | ​ | 42,546 | ​ | ​ | 37,979
IT provision Aerostar | ​ | Ps. | 38,579 | ​ | Ps. | 42,530 | ​ | Ps. | 38,865
Airplan: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Current IT | ​ | Ps. | 110,910 | ​ | Ps. | 2,916 | ​ | Ps. | 74,862
Deferred IT | ​ | ​ | (92,794) | ​ | ​ | (65,686) | ​ | ​ | (5,997)
IT provision Airplan | ​ | Ps. | 18,116 | ​ | Ps. | (62,770) | ​ | Ps. | 68,865
Total IT provision | ​ | Ps. | 1,978,102 | ​ | Ps. | 729,155 | ​ | Ps. | 1,728,507
Schedule of reconciliation between statutory and effective income tax rates | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, | ​
​ |  | 2019 |  | 2020 |  | 2021 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Consolidated income before provision for IT | ​ | Ps. | 7,661,741 | ​ | Ps. | 2,855,692 | ​ | Ps. | 8,126,035 | ​
Plus (less): | ​ |  | ​ | ​ |  | ​ | ​ | ​ | ​ | ​
Net (loss) income before taxes of Airplan and Aerostar | ​ |  | (843,352) | ​ |  | (65,672) | ​ | ​ | (1,418,186) | ​
Net (loss) income before taxes of subsidiaries in Mexico not subject to IT | ​ |  | (100,793) | ​ |  | 4,337 | ​ | ​ | (170,247) | ​
Income before provisions for income taxes | ​ |  | 6,717,596 | ​ |  | 2,794,357 | ​ | ​ | 6,537,602 | ​
Statutory IT rate | ​ |  | 30 | % | ​ | 30 | % | ​ | 30 | %
IT that would result from applying the IT rate to book profit before income taxes | ​ | ​ | 2,015,279 | ​ |  | 838,307 | ​ | ​ | 1,961,281 | ​
Non-deductible items and other permanent differences | ​ |  | 11,941 | ​ |  | 10,496 | ​ | ​ | 7,853 | ​
Annual adjustment for tax inflation | ​ |  | (12,783) | ​ | ​ | (18,958) | ​ | ​ | (33,603) | ​
Accounting disconnect inflation | ​ |  | (93,030) | ​ | ​ | (80,450) | ​ | ​ | (314,754) | ​
Effect by difference in rate of IT Aerostar | ​ |  | 38,579 | ​ | ​ | 42,530 | ​ | ​ | 38,865 | ​
Effect by difference in rate of IT Airplan | ​ |  | 18,116 | ​ | ​ | (62,770) | ​ | ​ | 68,865 | ​
IT provision | ​ | Ps. | 1,978,102 | ​ | Ps. | 729,155 | ​ | Ps. | 1,728,507 | ​
Effective IT rate | ​ | ​ | 29 | % | ​ | 26 | % | ​ | 26 | %
​
Schedule of principal temporary differences with respect to deferred tax | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year ended
​ | ​ | December 31,
​ |  | 2020 |  | 2021
​ | ​ |  | ​ | ​ |  | ​
​ |  |  |  |  |  |
Deferred income tax asset: |  | ​ |  |  | ​ |
Temporary liabilities |  | Ps. | 31,019 | ​ | Ps. | 57,201
Fair value of long-term debt (Bank loan) |  | ​ | 162,574 | ​ | ​ | 149,120
Allowance for doubtful accounts |  | ​ | 66,609 | ​ | ​ | 57,962
​ |  | ​ | 260,202 | ​ | ​ | 264,283
Deferred income tax payable: |  | ​ | ​ | ​ | ​ | ​
Fixed and intangible assets (*) |  | ​ | (3,198,632) | ​ | ​ | (3,111,403)
Temporary assets |  | ​ | (226,106) | ​ | ​ | (197,104)
Amortization of expenses |  | ​ | (609) | ​ | ​ | (408)
​ |  | ​ | (3,425,347) | ​ | ​ | (3,308,915)
Deferred income tax liability - Net |  | Ps. | (3,165,145) | ​ | Ps. | (3,044,632)
​ (*)Includes Ps. 1,032,799 and Ps.1,100,265 from Aerostar from the periods 2020 and 2021, and Ps.647,571 and Ps.587,845 from Airplan in 2020 and 2021, respectively.
Schedule of net movements of the deferred tax asset and liability | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Impairment |  |  |  |  |  |  |  |  |  |  |  |
​ | ​ | provision | ​ | ​ | ​ | ​ | Foreign | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | of loan | ​ | Concession | ​ | Currency | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | portfolio | ​ | Assets | ​ | Conversion | ​ | Others | ​ | Total
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balances as of December 31, 2019 |  | Ps. | (34,296) |  | Ps. | 3,016,922 |  | Ps. | (42,814) |  | Ps. | 64,772 |  | Ps. | 3,004,584
Revaluation effect by conversion Airplan and Aerostar |  | ​ | ​ |  | ​ | ​ |  | ​ | 141,236 |  | ​ | (75,459) |  | ​ | 65,777
Consolidated income statement: |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​
Airplan |  | ​ | (11,390) |  | ​ | (73,994) |  | ​ | (461) |  | ​ | 20,159 |  | ​ | (65,686)
Aerostar |  | ​ | ​ |  | ​ | 43,767 |  | ​ | (1,221) |  | ​ | ​ |  | ​ | 42,546
México |  | ​ | (20,923) |  | ​ | 115,197 |  | ​ | ​ |  | ​ | 23,650 |  | ​ | 117,924
​ |  | ​ | (32,313) |  | ​ | 84,970 |  | ​ | (1,682) |  | ​ | 43,809 |  | ​ | 94,784
Balances as of December 31, 2020 | ​ | Ps. | (66,609) |  | Ps. | 3,101,892 |  | Ps. | 96,740 |  | Ps. | 33,122 |  | Ps. | 3,165,145
Conversion revaluation effect Airplan and Aerostar | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | (61,018) | ​ | ​ | 36,777 | ​ | ​ | (24,241)
Consolidated income statement: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Airplan | ​ | ​ | 11,390 | ​ | ​ | 28,642 | ​ | ​ | (1,089) | ​ | ​ | (44,940) | ​ | ​ | (5,997)
Aerostar | ​ | ​ | ​ | ​ | ​ | 39,709 | ​ | ​ | (1,730) | ​ | ​ | ​ | ​ | ​ | 37,979
México | ​ | ​ | (2,743) | ​ | ​ | (91,743) | ​ | ​ | ​ | ​ | ​ | (33,768) | ​ | ​ | (128,254)
​ | ​ | ​ | 8,647 |  | ​ | (23,392) |  | ​ | (2,819) |  | ​ | (78,708) |  | ​ | (96,272)
Balances as of December 31, 2021 |  | Ps. | (57,962) |  | Ps. | 3,078,500 |  | Ps. | 32,903 |  | Ps. | (8,809) |  | Ps. | 3,044,632
Schedule of Aerostar tax loss carry forwards | ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Year of
Year of loss |  | Amount |  | expiration
2012 |  | Ps. | 7,085 |  | 2022
2013 |  |  | 37,256 |  | 2023
2014 |  |  | 25,545 |  | 2024
2015 |  |  | 28,520 |  | 2025
2016 |  |  | 27,745 |  | 2026
2017 |  |  | 22,372 |  | 2027
2018 |  |  | 10,900 |  | 2028
2020 | ​ | ​ | 30,725 | ​ | 2030
Total |  | Ps. | 190,148 |  |
Schedule of Temporal differences not recognized | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, | ​
​ | ​ | 2020 | ​ | 2021 | ​
Undistributed utilities |  | Ps. | 3,200,543 | ​ | Ps. | 4,903,164 | ​
Tax rate |  |  | 30 | % |  | 30 | %
Deferred income tax liabilities unrecognized with the previous temporary differences |  | Ps. | 960,163 | ​ | Ps. | 1,470,949 | ​

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