Seasonal cuts to MVY, ACK, and HYA aren't too surprising (and neither are cutbacks to some of the smaller places in Maine). Demand for travel to the Cape and Islands drops off a cliff after Labor Day.
It is a bit shocking to me, though, to see mainline service to DAY end, especially given that DAY had been a hub for Piedmont. Moreover, it looks like deep cuts of 25-30% are in store for all West coast destinations (aside from SNA, which has value due to its slot limitations). And the cuts to BDA are very deep -- from four daily flights to one. PIT also shoulders deep cuts, losing over 20% of its mainline service and about one in six flights overall. It seems the abandonment of BWI continues, while BOS continues to see reductions in service (and the US terminal at BOS seemed VERY quiet the last time was through there a month ago). CLT and PHL see far more modest cuts, though it's a bit ironic that BNA now has more service to the West Coast than CLT. I thought the plan before had been to shift a greater percentage of flying to longer routes, but it seems the longer routes are taking deeper cuts.
With the loss of DAY and SDF as mainline cities, US now (by my count) serves 62 domestic airports (not counting SJU, STT, STX) with mainline, which is three more than WN serves. [:0]