Qatar Airways will launch Doha-London Heathrow services using its new Boeing 787 on 13 December.
It will be the first airline to serve the UK using the new Boeing.
Initially, one of the airline's five daily flights will be operated with the Dreamliner. Flight QR075 will depart Doha at 06:25 local, arriving at Heathrow at 11:05. The return flight, QR076, leaves Heathrow at 15:05, arriving in Doha at 00:45.
The airline took delivery of its first 787 earlier this month and the twinjet has been operated on intra-Gulf routes to allow Qatar's staff to familiarise themselves with the new aircraft.
Its second of 60 Dreamliners has also arrived in Doha, the airline says.