What is the ICAO code for American Airlines?

The ICAO code for American Airlines is indeed AAL. The International Civil Aviation Organization (ICAO) assigns unique four-letter designators to each airline, and these codes are widely used in air traffic control and airline operations.

American Airlines' code, AAL, consists of the letter "A" representing the airline and two subsequent letters that help to identify the airline among others. This system ensures clarity in communication within the aviation industry.

The other options refer to different airlines. For instance, DAL is the ICAO code for Delta Air Lines, UAL corresponds to United Airlines, and RPA represents Republic Airlines. Understanding these codes is essential for recognizing airline identities in both operational and regulatory contexts within aviation.