United was "flat" but look deeper and their MAINLINE was -.5 to - 1.5%. Delta was +4.5% and AA was +4.7%

This continues a post 3/3 trend, the PRASM reflects attacting people who will pay higher ticket prices, and UA is miserably failing to do that. Given that they inevitably should have had some capture of revenue from fliers on both sides who will stay on UA (due to larger network) when before they did not, its even worse.