Very different model and market. Most of those seats are sold at a premium to 3rd party funded business travelers. Even with that the numbers and frequency of those segments are shrinking. As the smaller planes serving those flights rotate out of the fleets more of those services will disappear. Just as American walked away from all the ATR service. The smaller regional jets will be next. The going forward airline model is to run the ship at +/- 9 cents per passenger mile with a hope to sell those seats at 20 cents a mile. The rapid up and down with all the fees/taxes and hassles that go with each cycle make that impossible. One proof for the doubters. None, ZERO of the real airlines want to run the short route between EIS to SJU, STT, Antigua, Barbados, St. Lucia... 100+ seat jets and 300 plus miles is the secret to airline survival.