
The international relief effort was initially stalled by Burma's ruling military junta, which was reluctant to allow an unhindered influx of cargo and foreign aid workers into the cloistered country.
By establishing a logistics hub in Bangkok, the United Nations was able to eventually speed up air deliveries to the cyclone victims in Burma once the regime eased their restrictions.
"For the WFP and the wider UN and NGO community, the air hub was critical for the provision of vital relief supplies to the people of Myanmar," said Tony Banbury, Asia regional director for the WFP.
In the three months since the opening of the Don Mueang humanitarian air bridge on May 24, 232 relief flights were dispatched to Burma, he said.
Nearly 4 million kilograms of cargo were delivered, including shelter materials, medical supplies, mosquito nets and water-purification equipment.
Ten chartered WFP helicopters were also sent through the Bangkok air bridge, arriving in Rangoon in early June, where they flew relief supplies into the heart of the disaster zone in the Irrawaddy Delta.
Two helicopters remain in operation there.
The UN relief effort for the victims of Cyclone Nargis was expect to continue for months, but the delivery system has largely shifted to the affected areas in Burma and is being handled by ships and trucks, WFP officials said.