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Published
27 minutes ago
Heathrow Airport has apologised to passengers caught up in recent disruption but warned that more flights could be cancelled this summer.
Last month, carriers were told to ensure their timetables were "deliverable" after the industry struggled to cope with demand.
Chief executive John Holland-Kaye said Heathrow would review the changes submitted by airlines.
He added Heathrow would ask for "further action if necessary".