The FCDO issued a slew of warnings for destinations across the region on Sunday (22 June) after the US targeted several Iranian nuclear facilities, with president Donald Trump claiming "monumental damage".
The Independent, citing a BA spokesperson, reports the carrier has adjusted its schedule "to ensure the safety of customers and crew", adding it was contacting customers to advise them of their options.
BA passengers booked to travel to Dubai and Doha on Monday and Tuesday (23-24 June) can postpone their travel by up to a week-and-a-half (through to 4 July) by calling the carrier.
Gulf carriers, including Emirates, Qatar Airways and Etihad, are continuing to serve the region from the UK, but have made other adjustments to their schedules, including to destinations in Israel, Iran and Iraq. Several US carriers have temporarily grounded their services.
On Sunday, the FCDO issued new travel advice for the United Arab Emirates, Jordan, Qatar, Saudi Arabia, Bahrain, Kuwait, Oman, Yemen, Lebanon and Iraq, as well as Israel, The Occupied Palestinian Territories (OPTs) and Iran.
The advice for those states not directly involved in the conflict was broadly similar. "Ongoing hostilities in the region and between Israel and Iran have the potential to deteriorate further, quickly and without warning including since US military strikes against Iran on 22 June.
"There is a possibility of travel disruption, including short-notice airspace closures, delayed and cancelled flights, and other unanticipated travel impacts."
The FCDO is advising any British nationals in Israel and Palestine to register their presence and their interest in repatriation flights.
"The UK is preparing a flight to transport British nationals and their dependants out of Israel and the OPTs," said the FCDO. "The UK government has launched a flight registration form for British nationals to register their details and interest in the flight. Further flights will be considered depending on demand and the latest security situation.
"The FCDO is urging all those interested in flights back to the UK to register their presence now, if not done so already, so that they can receive details."
With regards to the hostilities, the FCDO reiterated Israel airspace remains closed along with Tel Aviv’s main Ben Gurion airport.
"This is a fast-moving situation that poses significant risks," the advice continues. "The situation has the potential to deteriorate further, quickly and without warning. The current situation has disrupted air links out of the country."
The FCDO is continuing to advise against all travel to Israel, the OPTs, Iran and Yemen, as well as parts of several other countries in the region.