Emirates, the world’s biggest long-haul airline, said a rebound in earnings over the past year faces a challenge this summer as a pilot shortage forces the Dubai-based carrier to trim frequencies.

The revival will come under pressure as a shortfall of 100 to 150 pilots compels Emirates to pare frequencies to destinations including Fort Lauderdale and Miami during the looming high season for global travel.

Cuts will also extend to several European and Asian routes, according to reports in the Gulf.

“We’re a tad short on pilots,” Clark said, adding that the service reductions will be short-term and that crew numbers should be “alright by September or October.” Factors including economic growth in the U.S. and U.K. and rising wages in Germany continue to favor growth, he said.