The undeniable best seats, however, are seats 42C, 42D, 42F, and 42G. These seats offer exceptional comfort for passengers, as they have extra legroom but are typically sold as standard economy seats.

Passengers say Delta and United sold "window" seats without windows, sparking class actions over deceptive fees.

Long flights rarely feel great, but that’s especially true when the seat barely reclines and your knees graze the tray table.

Tampa Bay 28 Reporter Susan El Khoury advises travelers to review seat details before paying extra by checking airline disclosures and using seat review sites like SeatGuru.