As airlines report earnings, Wall Street will be watching to see whether American and United match Delta's capacity cuts.
The Pension Benefit Guaranty Corp. played a key role in the merger of American Airlines and US Airways.
Delta displayed discipline on Wednesday, announcing specific international capacity cuts months in advance. Usually, airlines cut routes quietly.
Delta says it will cut back flying to Japan, Brazil, Africa, India, the Mideast and Moscow this winter because of a strong dollar and weak oil economies.
JetBlue shares have gained 24% year to date, leading all airlines, but some analysts want to see whether management can execute a new pricing plan.
For years, New York's LaGuardia Airport has been a close-in airport offering domestic flights up to 1,500 miles. But that may change.
Delta and the Machinists union say they are pleased the Justice Department has been asked to investigate.
United projects flat to positive first-quarter unit revenue numbers, distinguishing itself from rivals American and Delta.
A nasty fight between Allegiant and the Teamsters union hasn't been a good thing for the airline's stock.
The International Association of Machinists suspends an effort to unionize Delta flight attendants three months after saying it had signatures from 60% of them.