Table schema:
CREATE TABLE Airports (AirportCode VARCHAR, city VARCHAR); CREATE TABLE Flights (DestAirport VARCHAR)

Question: Find the number of flights landing in the city of Aberdeen or Abilene.
SQL: SELECT COUNT(*) FROM Flights AS T1 JOIN Airports AS T2 ON T1.DestAirport = T2.AirportCode WHERE T2.city = "Aberdeen" OR T2.city = "Abilene"