Southwest Airlines , Alaska Airlines and American Airlines are among the carriers that have forecast slower revenue growth or weakness for the third quarter, despite strong demand.
The NYSE Arca Airline index is down more than 6% this week, slimming its gains to 37% so far this year.
Southwest on Thursday said it expects unit revenue to drop as much as 7% in the current quarter from a year ago on a 12% increase in capacity.
An airline's revenue per available seat mile is a measure of how much a carrier generates compared with how much capacity they're offering.
Meanwhile, Alaska Airlines this week forecast third-quarter revenue ranging from flat to up 3% and unit revenues down about 9% "at the midpoint," with capacity up as much as 13% compared with last year.
Persons:
Hopper, Ben Minicucci
Organizations:
Southwest Airlines, Alaska Airlines, American Airlines, NYSE, Airline, Domestic, Southwest, Delta Air Lines, United Airlines
Locations:
airfare, Dallas, Alaska, Europe, Asia