Delta Air Lines and United Airlines were sued on Tuesday by passengers who claimed they paid extra money to sit in "window" seats, only to find themselves placed in seats next to a blank wall. Proposed class actions were filed against United in San Francisco federal court and against Delta in Brooklyn,

"Had plaintiffs and the class members known that the seats they were purchasing (were) windowless, they would not have selected them - much less have paid extra," the complaint against United said.