EXHIBIT 12 Alaska Air Group, Inc. Calculation of Ratio of Earnings to Fixed Charges (In thousands, except ratios) 1999 1998 1997 1996 1995 --------------------------------------------------------- Earnings: Income before income tax expense $220,700 $204,400 $123,600 $64,349 $33,983 Less: Capitalized interest (10,200) (6,600) (5,300) (1,031) (208) Add: Interest on indebtedness 16,300 21,200 33,600 38,394 51,479 Amortization of debt expense 440 682 685 1,224 1,100 Portion of rent under long-term operating leases representative of an interest factor 81,437 80,547 72,900 71,562 67,295 --------------------------------------------------------- Earnings Available for Fixed Charges $308,677 $300,229 $225,485 $174,498 $153,649 ========================================================= Fixed Charges: Interest 16,300 21,200 33,600 38,394 51,479 Amortization of debt expense 440 682 685 1,224 1,100 Portion of rent under long-term operating leases representative of an interest factor 81,437 80,547 72,900 71,562 67,295 --------------------------------------------------------- Total Fixed Charges $98,177 $102,429 $107,185 $111,180 $119,874 ========================================================= Ratio of Earnings to Fixed Charges 3.14 2.93 2.10 1.57 1.28 ========================================================= Page 1