The other three cities where the airline is operating the 275-seater A-350 are Cape Town in South Africa and Phoenix in Arizona state and Las Vegas in Nevada state in the US.
The airline operates daily a mix of Boeing 777 and Boeing 737 for its direct service on the Bengaluru-London route and other West-bound cities from Heathrow airport.
"We plan to operate A-350 on the Bengaluru-London route from winter schedule, which begins at the year-end," an airline spokesperson told IANS.
As part of the Airbus family of jets, the twin-engine A-350 is flown by many airlines the world over for fuel efficiency, greater comfort and faster flight duration.
With 300-aircraft fleet, British Airways flies daily to about 200 destinations in 80 countries.