United and Delta charge hundreds of dollars for such seats and make no mention that they are without windows. Meanwhile, their competitors, American and Alaska Airlines, inform their customers that these types of seats do not have a window while booking, Reuters reported.

United and Delta are facing lawsuits brought by passengers who said they paid extra for a window seat, only to sit against a blank wall.

A group of passengers have sued United Airlines and Delta Air Lines, claiming they paid more to sit in "window" seats that weren't actually next to windows. The lawsuits, filed separately against the two airlines,