Five airlines optimize seating on Boeing's popular Dreamliner model

Italian carrier Neos Air offers another example with its Boeing 787-9 configuration. Two planes have a layout of 327 economy class seats without business class but include premium economy recliners. "Thousands of miles away in mainland Europe, the next-highest number of economy class seats on a Boeing 787-9 can be found at Italian carrier Neos Air."

Norse Atlantic Airways has pursued low-cost long-haul travel using its Boeing 787-9s. One configuration includes 309 economy seats while another has fewer at 282, adding more premium economy recliners instead. The airline operates several aircraft under these layouts: "Norse Atlantic Airways - Five aircraft with the 282/56 layout, two with 309/35 (both on lease to Neos Air)."

Air Europa utilizes two configurations for its fleet of fifteen Boeing 787-9s, which vary slightly in their seating arrangements for operational flexibility. "Air Europa is another example of a modern-day European Boeing 787-9 operator that favors high-density economy-heavy seating configurations."

Lastly, Juneyao Air from China features a single configuration across its eight Boeing 787-9s that includes a total of 295 economy seats arranged nine abreast.

These airlines demonstrate diverse approaches to maximizing passenger capacity within their fleets while accommodating different market demands and route structures.