Across
- 4. gate
- 6. flight
- 7. information board
- 9. boarding pass
- 11. stairs
- 13. line
- 14. security
- 16. carry on bag
- 17. airport
- 18. check-in
- 19. boarding
Down
- 1. conveyor belt
- 2. check-in desk
- 3. passengers
- 5. airplane
- 8. boarding gate
- 10. flight tickets
- 12. on board
- 15. scale