as of Oct 2022:-
To put it succinctly, the oldest aircraft
flying for British Airways these days are the airline's Boeing 777-200ERs.
After fully phasing out its non-ER 777-200s in August 2020, the airline's oldest group of jets are the 43 777-200ERs, which average 23 years of age
The absolute oldest at the moment is the aircraft registered G-VIIA. This jet was delivered in July of 1997 and is now 26 years old. The majority of these aircraft arrived between mid-1997 and October 2001. This was followed by a smaller batch of deliveries in 2009.
Despite their status as the oldest aircraft in the fleet, British Airways put this fleet through an extensive cabin refurbishment process between 2019 and 2021. Thus, passengers stepping aboard the jets will find the airline's latest Club suites in business class, as well as newly fitted premium and economy seating as well.
According to the comprehensive PlaneSpotters log, the oldest commercial aircraft (2020) registered in the United Kingdom still listed as “active” is a Boeing 757-200 aircraft, operated by Jet2. This plane, with registration G-LSAG, has been operating for more than 32 years, since 1987. The aircraft was first operated by the Civil Aviation Administration of China in 1987 before being delivered to China Southern Airlines in 1990. Jet2 took delivery of the aircraft in 2006. But Loganair were operating a 40 year old Twotter at that time