CREATE TABLE FLIGHTS (FlightNo VARCHAR(255), DestAirport VARCHAR(255)); CREATE TABLE AIRPORTS (AirportCode VARCHAR(255), City VARCHAR(255))
What are flight numbers of flights arriving at City "Aberdeen"?
    
SQL: SELECT T1.FlightNo FROM FLIGHTS AS T1 JOIN AIRPORTS AS T2 ON T1.DestAirport = T2.AirportCode WHERE T2.City = "Aberdeen"