The airline will add an extra daily return service on 18 March and 25 March, with both supplementary rotations operated using a Boeing configured with 264 seats.
On 18 March, the first flight will depart Singapore at 9.25am and arrive at Heathrow at 3.55pm, with the return service leaving London at 5.40pm and arriving in Singapore at 2.40pm the following day.
On 25 March, the second flight will depart Singapore earlier at 7.05am, landing at Heathrow at 3.45pm, while the return flight will again depart London at 5.40pm, arriving in Singapore at 5.20pm the next day.
Bookings for the additional services are available via the airline’s website.
Several airlines have had to cancel or readjust their flight schedules as a result of the conflict, with British Airways suspending its Abu Dhabi programme until "later this year" and Virgin Atlantic cancelling the remainder of its winter flights to Dubai.
Meanwhile, the UK government continues to repatriate Brits with "more flights to come" this week.
