Following a successful trial last June, BA will be the first airline in the UK to roll out automated biometric technology to provide a seamless journey from bag drop to the aircraft.
The move is in response to customers requests for a speedy journey from check in to the plane.
More than 4,000 flyers on UK domestic routes have already benefited from the three self-service boarding gates now open at Terminal 5.
Travellers just scan their own boarding pass when they arrive at the gate and simply walk through to the aircraft.
A digital face scan is recorded when going through security and this is matched when the boarding pass is presented, allowing a seamless journey to board the plane.
Biometric facial recognition technology is more advanced, safe and secure than other systems currently used by other airlines and airports.
Three self-boarding gates will open at each domestic departure stand every week until mid-June.
A full roll-out on international flights is part of future plans.
The new gates are another step as part of a wider investment in technology to boost the passenger experience with BA.
BA has also opened self-service bag drops at Heathrow and Gatwick airports, and this week launched The First Wing at Terminal 5 - a redesigned check-in area for its premium passengers.
Troy Warfield, British Airways' director of customer experience, said: "Our customers have told us that they want the ability to simplify and speed up their journeys through the airport.
"The addition of self-boarding gates, along with self-serve bag drop points, are just two of the ways in which we are investing in areas our customers value most."
Later this year the airline hopes to introduce an improved connections area at Terminal 5.
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