Exhibit 12.1 UAL Corporation and Subsidiary Companies Computation of Ratio of Earnings to Fixed Charges Year Ended December 31 1994 1993 1992 1991 1990 (In Millions) Earnings: Earnings (loss) before income taxes and extraordinary items $ 170 $ (47) $ (656) $(508) $164 Fixed charges, from below 1,052 1,104 1,001 749 592 Interest capitalized (41) (51) (92) (91) (71) Earnings $1,181 $1,006 $ 253 $ 150 $685 Fixed charges: Interest expense $ 372 $ 358 $ 329 $ 211 $193 Portion of rental expense representative of the interest factor 680 746 672 538 399 Fixed charges $1,052 $1,104 $1,001 $ 749 $592 Ratio of earnings to fixed charges 1.12 (a) (a) (a) 1.16 (a) Earnings were inadequate to cover fixed charges by $98 million in 1993, $748 million in 1992 and $599 million in 1991.