I'm glad I'm not the only one that noticed the change in DTW-LGA fares. I was shopping yesterday for a Sat-Mon trip in late October and the K fare was $289 round trip, at least $70 more than I expected.
Similar story for DTW-DCA. A Mon-Tues trip priced at $600+ almost 2 months out. I don't want to fly to BWI, which would be $139 all in.
Two trips that I won't take now that I would have had there been reasonable fares.