Etihad Airways has temporarily suspended its flights between Abu Dhabi and Saudi Arabia, Muscat (Oman) and Kuwait until further notice.
A company spokesperson said the move is aimed to limit the spread of Covid-19, a Wam news agency report said.
"The safety of its customers and crew is Etihad's highest priority and we regret any inconvenience the suspension may cause, he added.
Meanwhile, Etihad said following an announcement by the National Crisis and Disaster Management Authority, effective December 24, the airline will require all guests flying from the UK to present a negative PCR test within 72 hours validity of their flight departure time.
PCR tests must be conducted at a government accredited medical facility. Suggested facilities can be found at etihad.com, it said.
As many Covid-19 PCR test certificates do not currently show the date and time the test was taken, guests are required to show evidence of this at check-in, for example by presenting their appointment confirmation. Children under 12 and people with severe and moderate disabilities are exempt from Covid-19 PCR testing.
Etihad Wellness, the airline’s health and safety programme, ensures the highest standards of hygiene are maintained at every stage of the customer journey. This includes specially trained Wellness Ambassadors, a first in the industry, who have been introduced by the airline to provide essential travel health information and care on the ground and on every flight.
As part of the Etihad Wellness programme, global Covid-19 insurance cover is included for all passengers travelling with Etihad, it said.