British Airways will fly daily from Heathrow to Dammam in Saudi Arabia from December 1 2019.
Flights will be operated by a four-class Boeing 777-200 departing year-round from Heathrow Terminal 5 to Dammam's King Fahd International Airport.
BA already flies non-stop daily services to Riyadh and Jeddah.
Moran Birger, head of sales for the Middle East and Asia Pacific, said: "Our customers are currently offered a limo service between Bahrain and Dammam, but the direct service will now enable seamless travel in eight hours from our home at Heathrow.
"More than half of Saudi Arabia's oil and gas is produced in this region, so this new link underlines the importance of the Eastern province of the Kingdom and the need for smooth onward connections to Europe and the United States."
This year, which marks the airline's centenary, BA is also launching non-stop flights to Pittsburgh, Charleston, Osaka and Islamabad, alongside several short-haul routes.
BA will also start flying a new Club Suite on some short-haul flights between London and Madrid.
The new business class seat will arrive on the first of its A350 aircraft in July.
With direct-aisle access and a 'door' for greater privacy, the suites will have flat-bed seats and will be in a 1-2-1 configuration.
There will be 40% more storage, including a vanity unit and mirror, WiFi, 18.5-inch inflight entertainment screens, and PC / USB power.
Qantas launching Darwin-Broome flights20 Mar - 19
Qantas has announced a new route linking the Top End with the WA resort town of Broome.
Cebu Pacific launching Shenzhen flights20 Mar - 19
Philippines budget carrier Cebu Pacific is expending its network in mainland China with a new Manil…
Hyatt Regency checking in to Puerto Rico20 Mar - 19
The Hyatt Regency brand is coming to the Coco Beach tourism development in Puerto Rico.
El Al launching Tokyo flights20 Mar - 19
Japan is getting its first ever direct air link with the Holy Land.
Israeli flag carrier El Al wi…
IndiGo considers new flights to London20 Mar - 19
Indian budget airline IndiGo is looking at launching 'affordable' business class flights to Europe,…
Delta Air Lines restarting Mumbai flights20 Mar - 19
Delta Air Lines will bring back nonstop flights to Mumbai, India later this year.
The year-round …
IHG launching new Holiday Inn in Queenstown20 Mar - 19
Global hotel group IHG will open a new Holiday Inn in New Zealand's sporting playground of Queensto…
Singapore Airlines, Garuda Indonesia expand code sharing partnership20 Mar - 19
Singapore Airlines and Garuda Indonesia have deepened their long-term code sharing partnership to i…
Enterprise boosts Japan presence with Nippon Rent-A-Car partnership20 Mar - 19
Car rental giant Enterprise has tapped local operator Nippon Rent-A-Car International to boost its …
Vietjet launching Hong Kong-Phu Quoc flights20 Mar - 19
Budget carrier Vietjet will shortly launch nonstop flights linking Hong Kong with southern island …