Section 239 is divided into a left and right portion by the center aisle, and the two portions are often referred to as 239L and 239R. Each portion of the section has 13 numbered rows of seating, however the seats in the left portion begin with Seat 101 at the aisle (and increasing as you get closer to the middle of the section). Seats on the right portion will start at Seat 1 on the aisle, and increase as you walk closer to the middle of the right portion.