IOM, the International Organization for Migration, has completed 40 flights transporting nearly 6,000 returnees from Khartoum to Juba within 11 days since the operations started.
IOM is now operating four flights daily between Khartoum and Juba.IOM Khartoum Operations Officer Salah Osman said flights will resume this morning and afternoon after yesterday break for routine checks for the planes.
The airlift is likely to last a further ten days.
The passengers are among some 12,000 South Sudanese previously stranded in Kosti, 300 kms south of Khartoum, until IOM intervened in early May to move them by bus to Khartoum and by plane to Juba.
After arriving in Juba, returnees are housed in a new transit site 13 kilometres outside Juba.
The camp was established by IOM and its humanitarian partners.
The site, which sees on average 500 new arrivals every day, provides shelter, basic water and sanitation, medical care and cooking areas for some 7,500 people.
IOM South Sudan Chief of Mission Vincent Houver said the agency worked in close collaboration with government and its partners to set up the site in a matter of days.
He added that IOM manages camps and transit facilities worldwide and they have brought in experienced camp planners and managers to ensure that sufficient shelter is erected and services are expanded to meet the needs of the new arrivals.