Mainline load factor around 80% capacity and regionals typically hover around 70%. That's pretty good for DAL, UAL, and AA. The other non-feed carriers will have different numbers, although I think SWA has historically had one of the lowest LFs out there.

Keep in mind all carriers have a revenue department and their job is to maximize revenue for each flight. It's probably the most important department at an airline. If they could raise ticket prices "just a few dollars" right now they would.

If you listened to any of the recent calls and looked at some quarterlys you'd see yield is dropping along with load factor. This isn't a good combo. Hopefully 4Q 2016 was the last of it, they all issued statements it would hopefully have bottomed out then.