"The port of Hodeidah will be reopened to receive food aid and humanitarian relief, and Sana'a airport will be open for United Nations flights with humanitarian relief", a statement from the coalitiob carried by the Saudi state news agency SPA said.
Years of conflict and worldwide embargo have caused a starvation in Yemen.
The airport had been open to only select humanitarian flights.
United Nations deputy spokesman Farhan Haq told reporters at United Nations headquarters in NY that senior United Nations humanitarian and political officials received information from their Saudi counterparts on Wednesday, indicating a willingness to open the airport and ports "over the next day".
"We stress the critical importance of resuming also commercial imports, in particular fuel supplies for our humanitarian response - transportation and so on - and for water pumping, Laerke said".
The UN and other advocacy groups have pressured the Saudi-led coalition to allow aid into Yemen through the Hodeida and Saleef seaports, which the coalition had said they would reopen.
It did not specify when or if it would ease a blockade on commercial traffic.
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The coalition imposed a total blockade of Yemen's ports and airports two days after the Houthis fired a missile at Saudi Arabia on November 4.
Saudi and USA officials have said that the missile fired by the Houthis was manufactured in Iran.
He says that "at a time of starvation and a time of cholera, it's very important" to keep all aid channels open.
McGoldrick says 7 million of Yemen's 27 million people rely on food aid. Turki Al Maliki made a statement today detailing the reasons of the temporary closure of ports in Yemen and the extent of aid facilitated since their reopening. The missile was shot down, but it was the farthest a projectile fired by Yemen's Shiite rebels, also known as the Houthis, had travelled into the kingdom.
The UN warned that millions of people in Yemen were at immediate risk by the blockade on food aid and fuel.
The coalition announced that it's lifting the blockade after initially tightening it following a Houthi missile attack.