LONDONSEOULCHICAGO, May 28 Reuters Airfares in Europe and Asia are starting to plateau or fall in a sign that a prolonged postCOVID travel boom is waning, delivering a setback for airlines struggling with higher costs and limited aircraft availability.

A global imbalance between supply of flights and pentup demand as air travel opened up after the pandemic drove up ticket prices and passenger yields a measure of average fare paid per mile by each passenger.

But industry executives, investors and analysts said that the travel at all costs trend is balancing out, with some customers becoming more sensitive to pricing as they grapple with inflation that has driven up living costs.

Budget carrier Ryanair39;s CEO Michael O39;Leary this month warned ticket prices would grow less than expected, sending European airline shares down.

It is a bit surprising that pricing hasn39;t been stronger and we39;re not quite sure whether that39;s just consumer sentiment or recessionary feel around Europe, O39;Leary said.

Fares were flat across the bloc in the first months of this year compared with 2023, data from travel research group ForwardKeys shows.

The picture is starker in AsiaPacific where fares have dropped the most, down around 16 in the JanApril period yearonyear, the data shows.

Singapore Airlines last week posted a record annual profit, but net profit growth fell in the last three quarters. The benchmark Asian carrier said it expects passenger yields to further moderate…