X0303 4 2010-02-11 0000100517 UAL CORP /DE/ UAUA 0001231908 TAGUE JOHN P P.O. BOX 66100 - HDQLD CHICAGO IL 60666 1 1 EVP President of UA Common Stock 2010-02-11 4 S 0 15000 15.55 D 86257 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.515 to $15.57, inclusive. The reporting person undertakes to provide to UAL Corp., any security holder of UAL Corp., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4. /s/ Lydia J. Mathas for John P. Tague 2010-02-12