Originally Posted by
Excargodog
Given that Delta is still flying the even older MD-88 and MD-90, who knows when Delta will retire the 717s? But certainly, at least some of the A220s will eventually pick up that flying as well.
The MD88 is planned to be gone by end of 2020. The MD90 is looking like 2023.
The 717 is still being leased till 2025, and then the lease is up and they assume it won't be renewed at that point.
The A220 has 90 firm orders now, with 50 of them being the 300 Model. That airplane really isn't designed to do 717/MD88 type of flying but you never know I suppose. They keep touting "Long and Thing" as the mission for that airframe.