Swiss International said in a statement that it was "helping to ease the present pressures on both its own flight schedules and the Swiss system as a whole. This will minimize the risk of short-notice cancellations or schedule modifications."

Destinations would remain reachable from Switzerland but frequencies would be cut, it added.

Airlines around the world, which slashed jobs during the coronavirus pandemic, are struggling to ramp up operations as demand returns.

Lufthansa Chief Executive Carsten Spohr earlier apologised to employees and customers for travel chaos caused by labour shortages amid soaring demand during the summer.

(Reporting by Ludwig Burger; editing by David Evans)