What "American Airlines" means in poker lingo (4)

I believe the answer is:

aces

(Other definitions for aces that I've seen before include "Flying war heroes" , "Experts (in their field)" , "passes with flying colours in US" , "Champions" , "Top cards or people" .)

I've seen this clue in The New York Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.