British Airways is planning a 106-seat business class on its Airbus A380 aircraft

British Airways is building what it calls the “world’s largest” business class cabin and ripping out dozens of coach class seats, the best example yet of how the airline is betting its future on money-spending travelers.

The changes are part of a massive overhaul of the British Airways fleet and its ground services, including its London Heathrow hub lounges.

Here are the changes:

• British Airways will use the Airbus A380, the world’s largest passenger aircraft, with a monster business class cabin of 106 seats, up from the current configuration of 97 business class seats.
• First class will also be updated and will include 12 suites, down from the current A380 configuration of 14.
• Premium economy class will grow to 84 seats from 55.
• Standard economy seats will shrink to just 215 out of 303.

Airlines have spent years and hundreds of millions of dollars expanding more expensive seats, catering to more choice and travelers’ appetite for more luxurious travel.

British Airways joint venture partner, American AirlinesLast month debuted the largest 70-seat business class Boeing plane.

More expensive seats are premium. Even extra legroom on trans-Atlantic trips can cost more than $200 per leg, with surcharges of more than $1,000 for premium economy seats after purchase.

Prices may be higher if selected at time of order. Top seats regularly run $5,000 and even more than $10,000 on longer flights.

The delivery of the new plane has even been delayed because some of the new seats are so elaborate that the operator is waiting for parts or federal certification.

British Airways’ overhaul of its 12 A380 cabins is also a bet on jumbo jets, which many carriers have retired in recent years, opting for smaller, more fuel-efficient jets. Airbus will deliver the last A380 to the aircraft’s largest user, Emirates, at the end of 2021.