UA20 IAH-AMS 763 returned to IAH due to maintenance after 3 hrs 12 mins in the air. Flight took off again with a different plane and arrived 6 hrs 54 mins late. Return UA21 AMS-IAH on 1/3 cancelled as a result.
UA957 GVA-EWR 763 cancelled due to maintenance after a 3 hr 13 min delay. Flight will continue to IAH as UA3043 departing on 1/4.
UA989 IAD-FRA 772 (usually 77W) cancelled due to an unexpected operational issue after a 2 hr 25 min delay. Replacement flight UA3038 will take off 5 hrs 10 mins later than UA989. Return UA988 FRA-IAD on 1/3 cancelled as a result. Replacement flight UA3041 will take off 3 hours later than UA988.