UPDATE 3-Delta buys stake in Korean Air, seeks to expand in Asia <div>Delta Air Lines Inc said on Thursday it has acquired a 4.3% stake in joint venture partner Korean Air Lines Co Ltd's parent company with a view toward expanding across Asia.<div class="feedflare"> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=1xJZQGwyTZQ:5Kp3gMC3F3U:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?d=yIl2AUoC8zA" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=1xJZQGwyTZQ:5Kp3gMC3F3U:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=1xJZQGwyTZQ:5Kp3gMC3F3U:V_sGLiPBpWU" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=1xJZQGwyTZQ:5Kp3gMC3F3U:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=1xJZQGwyTZQ:5Kp3gMC3F3U:F7zBnMyn0Lo" border="0"></a> </div><img src="http://feeds.feedburner.com/~r/reuters/UKBankingFinancial/~4/1xJZQGwyTZQ" height="1" width="1" alt=""></div> Posted by Reuters