Database: flight_4
Question: Find the name and city of the airport which is the source for the most number of flight routes.
SQL:
SELECT T1.name ,  T1.city ,  T2.src_apid FROM airports AS T1 JOIN routes AS T2 ON T1.apid  =  T2.src_apid GROUP BY T2.src_apid ORDER BY count(*) DESC LIMIT 1