United has axed two of six daily Newark services after Heathrow told carriers it could not cope with any more passengers this summer.
However, Bob Schumacher, United’s sales director, UK, Ireland, Israel, South Africa and off-line markets, said the carrier would still be the biggest operator from North America to Europe.
He added that despite the latest setbacks: “I remind my staff every day that a year ago we would have given our hind teeth for what we have today.”
Heathrow has been criticised for its short-notice decision to curb flights via an open letter.