Angeles City Clark Intl Airport is CRK and Dallas/Fort Worth Airport is DFW. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. Dallas Love Field Airport (DAL), Waco Airport (ACT), Tyler Pounds Field Airport (TYR), Dallas Addison Airport (ADS) are some additional IATA codes for airports related to your trip.