The "best" economy seats on the Airbus A350 are generally found in the Bulkhead and Exit Row sections, but the A350 has a few unique features to keep in mind. Because the A350 has a wider fuselage than older aircraft, airlines that maintain a 9-abreast (3-3-3) configuration offer a comfortable 18-inch seat width. The absolute "gold mine" seats are typically in the extra-legroom rows (like Row 31 or 35 on many Delta or Qatar configurations) where there is no seat in front of you. On some airlines like Singapore Airlines or Lufthansa, look for the "twin" seats at the very back of the plane where the fuselage tapers; while these are closer to the galley and lavatories, they offer more side space and are ideal for couples. You should strictly avoid seats in the very last row, as they often have limited recline and are high-traffic areas. Another pro-tip for the A350: the "A" and "K" window seats in the exit rows sometimes lack a window or have the emergency slide housing protruding into your foot space, so always check a seat map like SeatGuru before finalizing your selection to ensure a clear view and maximum foot room.