American said it was anticipating higher costs driven by lower capacity and expensive labor contracts to dampen its first-quarter outlook.

American Airlines shares slumped in premarket trading Thursday as the carrier's soft outlook outweighed stronger-than-expected fourth-quarter results.

American Airlines shares tumbled almost 11 per cent in pre-market trading as fuel costs and mis-steps with corporate travellers prompted it to set a profit outlook more dour than its peers. The Fort Worth,

American Airlines said on Thursday it expects to post a first-quarter loss, sending its stock tumbling even after it reported a $590 million profit at the end of last year. The Fort Worth-based air carrier finished 2024 with a record $52.