SELECT T1.AirportCode FROM AIRPORTS AS T1 JOIN FLIGHTS AS T2 ON T1.AirportCode  =  T2.DestAirport OR T1.AirportCode  =  T2.SourceAirport GROUP BY T1.AirportCode ORDER BY count(*) LIMIT 1
What is the code of airport that has fewest number of flights?
SELECT T1.AirportCode FROM AIRPORTS AS T1 JOIN FLIGHTS AS T2 ON T1.AirportCode = T2.DestAirport OR T1.AirportCode = T2.SourceAirport GROUP BY T1.AirportCode ORDER BY count ( * ) LIMIT 1
select t1 . airportcode from airports as t1 join flights as t2 on t1 . airportcode = t2 . destairport or t1 . airportcode = t2 . sourceairport group by t1 . airportcode order by count ( * ) limit value
What is the code of airport that has fewest number of flights ?