British Airways is reported to have trimmed its food service and will no longer provide two meals to economy travellers on flights under eight and a half hours.
The measures also apply to journeys of less than seven hours for premium economy passengers.
The reduced menu was introduced last month and came after reports that BA was going to charge for in-flight food service.
Instead of two full meals, passengers will get only one and might have to make do with snacks if they get hungrier later in the flight. The choices of alcohol and complimentary snacks will not be affected, a BA spokesman said.
Many flights from the UK to the east coast of the US, including New York, take between seven and eight hours while the journey to Toronto and Montreal in Canada is around seven hours.
Spaniard Alex Cruz took over as chief executive of BA in April, moving from Spanish low-cost sister carrier Vueling.
A BA spokesman told the Press Association: “We offer customers on all of our transatlantic flights a three course meal, bar service and snacks and on our longer transatlantic flights, including to the west coast, customers are offered an extra meal during the flight.
“We regularly review our catering to ensure we are investing where it matters most to our customers.”