Business class and first class are the highest-service tickets people can book on commercial flights. Whether the extra cost is worth the upgrade depends on financial means and personal priorities. More and more airlines are moving away from providing first class tickets and are removing the seats in favor of business class seating. Overall, there are now 40% fewer first class annual scheduled seats in 2024 compared to 2019. Here are some of the differences between first and business class and their evolution.