United accelerates fleet renewal and premiumisation with 250+ new jets, A321 'Coastliner' and CRJ450
United expects to receive more than 250 new aircraft over the next two years and will roll out new cabin layouts — including a premium domestic A321neo 'Coastliner' and a CRJ450 conversion with first class — as it accelerates upgauging. A321s and 787‑9s increase seat output and lower fuel burn by roughly 36%.