US airlines advance as lower oil prices ease fuel cost worries

** Shares of US airlines rise after crude oil prices fall more than $3 a barrel, easing concerns over fuel costs, a key expense for carriers

** Investors await Washington's next move in the Iran war after Republicans lose control of Congress in the midterm elections

** Jetblue Airways JBLU.O and Alaska Airlines ALK.N advance 7% and 4%, respectively

** American Airlines AAL.O rises 3.5%, Southwest Airlines LUV.N up 2.4%

** Delta Airlines DAL.N and United Airlines UAL.O gain about 2.6% and 3.6%, respectively

** Including session gains, Dow Jones US airlines sub-index .DJUSAR up 1.1% YTD