Across
- 1. takeoff
- 3. plateau
- 6. altitude
- 7. direct flight
- 11. jet
- 12. helicopter
- 15. valley
- 16. passenger terminal
- 18. altitude
- 19. geography
- 21. mountain range
- 22. high plateau
Down
- 2. in the airport
- 4. turbulence
- 5. mountain
- 8. jet
- 9. plain
- 10. peak
- 11. small airplane
- 13. control tower
- 14. stopover
- 17. lake
- 20. landing