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Financial risk management: (Tables)

12 Months Ended

Dec. 31, 2021

Financial risk management:

Schedule of exchange rate risk


		December 31,
		2020			2021
Asset		Ps.	88,426		Ps.	124,656
Liability			(5,578)			(7,580)
Net Monetary Assets		Ps.	82,848		Ps.	117,076

Schedule of liquidity position


December 31, 2020		Cash and equivalents			Total Debt			Debt term short			Debt term long
Mexico		Ps.	4,058,495		Ps.	3,971,210		Ps.	322,209		Ps.	3,649,001
Aerostar			804,634			7,171,278			529,337			6,641,941
Airplan			329,499			2,757,858			287,204			2,470,654
Total		Ps.	5,192,628		Ps.	13,900,346		Ps.	1,138,750		Ps.	12,761,596


December 31, 2021		Cash and equivalents			Total Debt			Debt term short			Debt term long
Mexico		Ps.	5,700,314		Ps.	4,630,722		Ps.	6,964		Ps.	4,623,758
Aerostar			2,295,087			6,952,069			353,672			6,598,397
Airplan			774,661			2,196,756			217,508			1,979,248
Total		Ps.	8,770,062		Ps.	13,779,547		Ps.	578,144		Ps.	13,201,403

Schedule of liquidity risk


		Under			Between 3 months			Between 1			Between 2 and
At December 31, 2020		3 months			and one year			and 2 years			5 years
Bank loans and interest		Ps.	11,176		Ps.	797,339		Ps.	2,238,558		Ps.	3,881,097
Long term debt			114,420			215,815			233,123			6,408,818
Suppliers			353,806
Accounts payable and accrued expenses			1,187,345

At December 31, 2021
Bank loans and interest		Ps.	13,660		Ps.	210,812		Ps.	3,945,092		Ps.	2,305,320
Long term debt			114,009			239,663			1,512,848			5,696,815
Suppliers			290,689
Accounts payable and accrued expenses			1,383,249

Schedule of short term liquidity


		December 31,
		2020			2021

Current assets		Ps.	7,716,049		Ps.	11,662,100
Current liabilities			2,767,087			3,786,398
Short term position (liquidity)		Ps.	4,948,962		Ps.	7,875,702