SELECT count(*) FROM airports AS T1 JOIN routes AS T2 ON T1.apid  =  T2.dst_apid WHERE country  =  'Canada'
Find the number of routes whose destination airports are in Canada.
SELECT count ( * ) FROM airports AS T1 JOIN routes AS T2 ON T1.apid = T2.dst_apid WHERE country = 'Canada '
select count ( * ) from airports as t1 join routes as t2 on t1 . apid = t2 . dst_apid where country = value
Find the number of routes whose destination airports are in Canada .