United Airlines will operate a 6 days a week flight to Punta Cana as from 15 December, an attractive regular scheduled connection for those living in the Washington DC and Chicago areas. United Airlines flight 705 will depart Washington-Dulles (IAD) at 6 am, arriving at Chicago O’Hare International Airport (ORD) at 7:08 am to leave shortly for Punta Cana on Flight 987 at 8:30 am, arriving at Punta Cana International at 3:06 pm.