Why do you have to be at the airport 3 hours early?

Related questions

1. Does American Airlines app have boarding pass?
2. Does American Airlines charge for luggage?
3. Can a backpack be a personal item on American Airlines?
4. Does American airlines charge for checked bags?
5. Does American Airlines charge for bags?
6. Do you have to print your boarding pass for American Airlines?
7. How do I print my boarding pass for American Airlines?
8. Can you book connecting flights separately?
9. How do I check in for my flight?
10. Do you have to recheck luggage on connecting flights American Airlines?

Tags

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5. #while
6. #passengers
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12. #minutes
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16. #departure
17. #boarding
18. #website
19. #approximately
20. #travel
21. #delta
22. #before
23. #america
24. #international
25. #processing
26. #suggests