Delta estimates cut by Goldman Tuesday June 11, 12:00 PM EDT CHICAGO, June 11 (Reuters) - Goldman Sachs analyst Glenn Engel said on Tuesday he cut estimates on Delta Air Lines Inc. (DAL <http://money.excite.com/jsp/qt/full.jsp?time=0&symbol_search_text=DAL> ), as the No. 3 U.S. carrier's yield, or average fare level, lags that of the industry. Engel lowered his 2002 results per share estimate to a loss of $6.15 from a previously estimated loss of $4.50 and his 2003 estimate to a profit of 35 cents from a previous estimate of a profit of $1.60. He continues to recommend buying the stock. "Delta's yield recovery has lagged our expectations, owing to weak industry conditions and the impact of low fare competition...Nevertheless, we believe Delta will have more upside in yield when industry conditions improve and (put) less pressure on costs." Delta was off 12 cents to $24.98 per share in early trade.