The first Government charter flight due to depart from Oman this evening has been delayed until tomorrow due to "highly challenging" conditions, according to the Department of Foreign Affairs.
A consular update from Minister for Foreign Affairs Helen McEntee said the flight will now depart tomorrow afternoon.
The flight had initially been due to leave Muscat this evening and land at Dublin Airport in the early hours of tomorrow morning.
It will accommodate vulnerable people, including people with health conditions, older people and children.
It is understood planning for this flight has been under way for a number of days.
Ms McEntee said: "Several hundred calls were made directly to citizens in the last number of days to confirm arrangements for our assisted departure flight from Oman.
"Passengers for this flight travelled to Oman this morning supported by our Embassy teams on the ground.
She added that the overnight hotel costs for the passengers in Oman will be met by the department following the delay.
Ms McEntee said the resumption of daily commercial flights between Dublin and Dubai was "very welcome".
Earlier this week, the minister said commercial flights remained the best and quickest way for Irish citizens stranded in the Middle East to get home.
"A flight will land this evening at Dublin airport, the third in as many days. For those in the region who want to leave, they should use commercial options, where possible."
Ms McEntee said more than 18,000 Irish citizens living in the Gulf have registered with the department since US and Israeli war on Iran began last weekend.
"An intensive consular support operation is ongoing for citizens across the Gulf and elsewhere who have been impacted by the current conflict.
"I am aware that there are citizens in other countries across the region, including Qatar and Kuwait, who wish to leave. We are in direct contact with many of these citizens to explain what options may become available.
"I am also aware that some citizens have been stranded in other parts of the world due to flight cancellations in the Gulf.
"We would encourage these citizens to make direct contact with their airlines or travel agents with regard to identifying alternative routes and to make contact with our Consular Crisis Centre where our staff can assist in emergency circumstances," she added.
Impacts on flights between Dublin and Middle East continue - daa
Daa has said flights to and from Dublin and the Middle East continue to be impacted today due to airspace constraints.
It said 12 of the 14 flights due to fly to the Middle East today have been cancelled by airlines, including all services to and from Doha and Abu Dhabi.
One inbound and one outbound Emirates flight to Dubai will take off this evening, similar to one yesterday and one on Wednesday evening.
It is expected that the inbound flight from Dubai this evening will be full with around 350 on board.
Daa expects a small number to be on the outbound flight to Dubai.
It said the flight is mainly about getting the aircraft in position for another flight back to Dublin tomorrow.
The daa says further disruption to schedules is due in the coming days and passengers are advised to check their airlines for updates about their flight status.
However, spokesman Graeme McQueen has said operations at Dublin Airport are "moving really well" despite the disruption caused to aviation by the conflict across the Middle East.
Speaking on RTÉ's Drivetime, he added that a number of planes remain at the airport that have not been able to fly since last weekend, including a Qatar Airways jet that has been in Dublin for days as flights to Doha have not resumed.
"It's just those Middle Eastern flights that are impacted at the moment."
