<Page> 1 Exhibit 12 AMR CORPORATION Computation of Ratio of Earnings to Fixed Charges (in millions) <Table> <Caption> Three Months Ended June 30, Six Months Ended June 30, 2002 2001 2002 2001 <s> <c> <c> <c> <c> Earnings: Loss before income taxes $(720) $ (793) $(1,583) $(850) Add: Total fixed charges (per below) 435 423 875 754 Less: Interest capitalized 22 38 44 79 Total loss $(307) $ (408) $ (752) $(175) Fixed charges: Interest, including interest capitalized $ 156 $ 126 $ 316 $ 240 Portion of rental expense representative of the interest factor 270 290 542 502 Amortization of debt expense 9 7 17 12 Total fixed charges $ 435 $ 423 $ 875 $ 754 Coverage deficiency $ 742 $ 831 $1,627 $ 929 </Table>