In 2026, Japan Airlines (JAL) remains the industry leader for the largest "Main Cabin" (Economy) seats. JAL famously rejected the industry trend of "densification," outfitting its Boeing 787 Dreamliners in a 2-4-2 layout instead of the cramped 3-3-3 standard. This allows for a massive seat width of up to 18.9 inches and a pitch (legroom) of 34 inches. In the United States, JetBlue continues to offer the most legroom on average, with a standard pitch of roughly 32.3 inches and seat widths reaching 18 to 19 inches on their Airbus A220 fleet. While most global carriers have shrunk seats to 17 inches wide and 30 inches deep to fit more passengers, JAL and JetBlue maintain a "comfort-first" strategy that provides significantly more personal space for the average economy traveler.