Airline jet fuel prices will eventually come down, but that doesn’t mean the cost of flights will, according to Dallas-based Southwest Airlines’ chief executive. Speaking at Bernstein’s 42nd Annual Strategic Decisions Conference on Thursday, Southwest CEO Bob Jordan said in prepared remarks: “I think we — our network competitors, you can tell, we’re all focused on ratable production of results, steady production of results, sustainable margins.” He continued, “And so I do think that produces a backdrop where we’ll — there’ll be — we’ll certainly not attempt to give some of these fare increases back.” Aircraft fuel and oil are some of the biggest expenses for airlines, according to published statistics from World Air Transport — comprising nearly 29% of all costs and “highlighting the significant impact of fuel prices on operational expenses.” Jordan said that the aviation industry has had seven consecutive fare increases since Feb.…