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Consolidated Statements of Cash Flows
$ in Thousands, $ in Millions
 12 Months Ended
Dec. 31, 2018
MXN ($)
Dec. 31, 2017
MXN ($)
Dec. 31, 2016
MXN ($)
Operating activities      
Income before income taxes $ 6,916,699 $ 8,386,544 $ 5,031,378
Adjustments for:      
Gain in business combination (Note 1)   (7,029,200)  
Impairment of goodwill (Note 8.1)   4,719,096  
Depreciation and amortization (Notes 4, 7 and 8) 1,760,741 1,166,114 529,660
Interest income (280,623) (245,787) (184,569)
Interest expense 1,230,651 618,831 126,186
Other comprehensive income from results of joint venture accounted for by the equity method (Note 9)   (112,345) (144,248)
Exchange loss 16,373 95,788 719,224
Exchange gain (295,524) (262,405) (384,178)
Working capital variations:      
Accounts receivable (Note 6) (107,608) (51,155) (45,258)
Recoverable taxes and other current assets 48,182 54,030 336,485
Other assets   394,972  
Trade accounts payable and other liabilities (Note 10) 490,827 154,791 94,586
Total adjustments to reconcile profit (loss) 9,779,718 7,889,274 6,079,266
Income taxes paid (Note 14) (2,083,398) (1,858,139) (1,569,879)
Net cash flows generated from operating activities 7,696,320 6,031,135 4,509,387
Investing activities      
Payment for investment increase in Aerostar, net of cash acquired   (183,386)  
Payment for acquisition of the subsidiary Airplan   (3,752,081)  
Loans collected from joint venture (Note 9)   275,376 325,693
Improvements to assets under concession and acquisition of furniture and equipment (Note 8) (1,636,325) (1,471,418) (1,814,482)
Interest received 265,350 259,717 122,093
Restricted cash and equivalents (Note 5.1) 59,018 (89,361)  
Net cash flows used in investing activities (1,311,957) (4,961,153) (1,366,696)
Financing activities      
Consideration paid for the non-controlling interest of Airplan (213,469)    
Bank loans received (Note 11)   8,000,000  
Bank loans paid (Note 11) (3,090,124) (5,339,338)  
Long-term debt paid (Note 12)   (102,907)  
Interest paid (Note 11) (1,139,071) (628,222) (106,873)
Dividends paid (Note 13) (2,034,000) (1,848,000) (1,683,000)
Net cash flows (used) generated from financing activities (6,476,664) 81,533 (1,789,873)
(Decrease) increase in cash and cash equivalents (92,301) 1,151,515 1,352,818
Cash and cash equivalents at the beginning of the year 4,677,454 3,497,635 2,084,160
Exchange (loss) gains on cash and cash equivalents (646) 28,304 60,657
Cash and cash equivalents at the end of the year $ 4,584,507 $ 4,677,454 $ 3,497,635