Southwest Airlines sent airline shares tumbling with a bleak view that sharper competition will drive down airfares more than in previous quarters.
Prices have been softening all year and the discount carrier has seen particular weakness in tickets sold just before travel over the past several weeks, Southwest Chief Executive Officer Gary Kelly said in an interview Thursday. Shares fell the most in almost a year and airlines posted the biggest decline on the S&P 500 Index.
"We are in a bit of a declining trend here," Kelly said. "Things are quite competitive."
Highlighting the difficult fare environment, Southwest said revenue from each seat flown a mile is expected to fall between 3 percent and 4 percent this quarter. Declines in the closely watched financial gauge known as unit revenue have plagued the industry for more than a year as a supply glut has dragged down prices and led to fare wars in some markets. Investors have shied away from airline stocks absent signs of improvement.
"Down 3 to 4 percent means revenue conditions are deteriorating," said Savanthi Syth, an analyst at Raymond James Financial, said by telephone. "The last time they talked, they said things would be improving sequentially. We were expecting down 1, so down 3 to 4 is worse than we were expecting and worse than a lot of people were expecting by quite a bit."
Southwest tumbled 11 percent to $37.37 as of 3:14 p.m. Eastern Standard Time Thursday, the biggest intraday drop since Aug. 24. The Bloomberg U.S. Airlines Index fell 5.2 percent, the most in three weeks.
The Dallas-based carrier isn't likely to make any changes to planned growth the rest of this year, but may consider trimming capacity in 2017 if the trend continues, Kelly said on a conference call. Reducing the number of seats offered for sale should boost unit revenue. Southwest's planned expansion for the first two months of 2017 now is about 6 percent.
"Our goal is to have positive unit revenue every single quarter and certainly for the year," he said. "We're falling short of that right now for the third quarter. That will give us cause to rethink our plans" for next year.
Other airlines hurting
Delta and United Continental are also forecasting that unit revenue will fall again this quarter from a year earlier. American Airlines reports results today.
Southwest is increasing capacity between 5 percent and 6 percent in 2016 and has said expansion will be more modest in the next two years. In the second quarter, the carrier's yield, or average fare per mile, dropped 4.6 percent.
"Seats are being offered for sale out there and, if prices aren't right, you don't have any takers," Kelly said.
An equipment failure, followed by collapse of a backup system, was responsible for flight disruptions across Southwest's system Wednesday, Kelly said. The "vast majority" of the airline's operating systems were operating by early Thursday, he said. Southwest canceled 335 flights.