May 10th 11:30: DC, DULLES AIRPORT The 1304 was supposed to depart at 10:57. We four were supposed to transfer the flight to Shanghai departing at 4:30 p.m. 1304 was delayed. We worried and explained our situation to the staff. Staff at front dest said :"We guarantee that the flight will departure at 12:30" Unfortunately, she guaranteed what she could not guarantee. The delay was repeated once and once again. People were busy fixing the airplane for hours. The flight finally departed at 4:00 pm and the delay was five hours. We missed... read full review »