Sometimes the airline biz is just weird. Case in point: Delta Air Lines is cutting more flights at Memphis (MEM), where until recently it had a hub. Delta looks to be down to about 43 flights a day from Memphis by early next year. Among the casualties: Delta is ending flights from Memphis to Boston and Washington Reagan National Airport, and cutting flights to LaGuardia to one a day. Yet somehow the airline will continue to operate two CLT-MEM flights a day (down from the current three a day). The latest federal data shows CLT-MEM as about an 85 passenger-a-day-each-way market (US Airways also flies the route six times a day), with Delta having just over a 30 percent market share. Hard to see how those flights are anything but a money suck for Delta. Also hard to imagine how those remaining two flights sticking around much longer.