What is the most expensive plane in the world?

The most expensive plane in the world is the US Air Force B-2 Spirit Stealth Bomber, also known as the 'Stealth Bomber', with a cost of approximately $2.1 billion per unit. The B-2 Spirit is a low-observable, strategic, long-range heavy bomber capable of penetrating sophisticated and dense air-defense shields. It is designed to deploy both conventional and nuclear weapons, making it a critical component of the United States military's arsenal. The B-2 Spirit was developed by Northrop Grumman and first entered service in 1997.

While the B-2 Spirit is the most expensive plane in the world, it is not available for private purchase. In the private sector, the most expensive plane is the Airbus A380, with a cost of approximately $445.6 million per unit. The A380 is a commercial aircraft capable of carrying up to 853 passengers, making it the largest passenger plane in the world. It is produced by the European manufacturer Airbus.