Finnair is increasing the use of new Airbus A350 XWB aircraft on the Heathrow-Helsinki route.
The wide-body aircraft will run a daily service, replacing a smaller A320.
Finnair flies from London to Helsinki up to five times a day operating both Airbus A350 and A320 aircraft.
Passengers travelling on flights AY832 between London and Helsinki and AY831 between Helsinki and London from March 27 will fly on the 297-seat A350.
The airline’s UK, Ireland and Benelux general manager, Andrew Fish, said: “Finnair is delighted to be operating the world’s most advanced airliner, the Airbus A350 XWB, between London Heathrow and Helsinki.
“The change, from a smaller short haul configured Airbus A320 aircraft, allows the airline to meet the increased demand for passenger and cargo capacity on this busy route.
“The A350 flight from Heathrow is perfectly timed to offer a short connection via Helsinki airport onto Finnair’s long haul A350 services to Asia offering customers a seamless product experience.”
Destinations served by the Airbus A350 XWB include Bangkok, Shanghai, Hong Kong, Beijing, Seoul, Singapore and Tokyo from June 4.