UA5 IAH-LHR 772 cancelled due to maintenance. Return UA4 LHR-IAH on 5/11 cancelled as a result.
UA54 EWR-CDG 764 cancelled due to maintenance.
UA940 EWR-LHR 764 (usually 763) cancelled due to maintenance. Flight continued to LHR as UA3017 departing on 5/11 with a 763.
UA991 BCN-IAD 763 cancelled due to maintenance after a 4 hr 15 min delay. Flight will continue to IAD as UA3015 departing on 5/12.
UA1676 MDE-IAH 38M cancelled due to maintenance after a 5 hr 15 min delay.