Alaska Air Announces Q2 Economic Fuel Cost $4.43/Gal, Up 85% YoY; Q3 Capacity Expected To Be Up ~2% To 3% YoY; Q3 Non-fuel Unit Costs Expected To Increase In Low To Mid Single Digits YoY; Q3 Economic Fuel Cost Per Gallon $3.75; Expects Q3 Adjusted EPS Range $0 To $1;