American, Delta and United boost unit revenue guidance as yields improve.
Traffic on U.S. airlines will climb 3.5% to 45 million passengers during the 21 days that start Dec. 16. U.S. airlines are the world's most profitable, a survey says.
By reducing the scope of American's codeshare with Alaska, the DOJ is attempting to preserve Virgin America's competitive approach after Alaska and Virgin merge.
The transportation department is considering whether to require airlines to provide their fares to all the websites that want them.