In 2026, airlines use several boarding strategies, but the most efficient is the "WilMA" (Window-Middle-Aisle) method. In this system, passengers in window seats board first, followed by middle seats, and finally aisle seats; this minimizes "seat interference" where passengers have to stand up to let others in. Another common method is the "Reverse Pyramid," which combines WilMA with a back-to-front flow, starting with the rear window seats. Despite these being the fastest, most major carriers still use "Group/Zone Boarding" based on loyalty status and cabin class (First, Business, then Economy blocks) because it rewards high-spending customers, even though it is technically slower due to "aisle interference" as people stow bags. Low-cost carriers like Southwest use a "Random/Open" strategy where you are assigned a number and pick your own seat, which is surprisingly fast but can be stressful for families. Overall, the "holy grail" of 2026 boarding is biometric facial scanning, which removes the "boarding pass shuffle" and speeds up the process by several minutes.