As of Sunday (20 February), visitors no longer need to undergo a PCR test on arrival. The kingdom has also removed quarantine requirements for all arrivals, regardless of vaccination status.
The changes have been outlined by the country’s national aviation authority. A vaccination certification card, though, may be required to enter some venues.
The Foreign Office has updated its advice to reflect the changes. "From 20 February 2022, there is no PCR testing nor quarantine requirements for any arrivals regardless of their vaccination status," said the FCDO. This includes those arriving via the King Fahd Causeway bridging Saudi Arabia and Bahrain.