A pair of lawsuits claim passengers were charged more for "window seats," only to find they weren't next to a window at all.

Windowless window seats have prompted passengers to file class action lawsuits against Delta and United Airlines.

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.