Shares in United Airlines are on the way down despite the carrier reporting a bigger-than-expected increase in second-quarter profit.
This was driven by strong air travel demand and the ability to charge more for seats after the grounding of Boeing 737 MAX reduced capacity.
The three US airlines that operate the MAX - United, American Airlines and Southwest Airlines - are cancelling thousands of flights each month since a worldwide grounding in March following crashes in Ethiopia and Indonesia that killed 346 people.
United Airlines reported net income of $1.05bn in the second quarter, up 54% from the same period in 2018.
Company results showed total passenger revenue increased 6.1% versus the second quarter of 2018.
The firm also lifted its profit outlook for 2019.
But shares fell 0.8%. Earnings per share growth for the year is expected to be slower than in 2018 due to the Max grounding and closed Pakistani air space, which led to United to cutting its 2019 capacity growth target for a second time this year.