How long can a flight be delayed before it's Cancelled?

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Tags

1. #refund
2. #responsible
3. #passengers
4. #airline
5. #after
6. #within
7. #airlines
8. #flight
9. #money
10. #canceled
11. #destination
12. #hours
13. #delays
14. #seven
15. #euros
16. #european
17. #cancelation
18. #estimated
19. #reach
20. #arrival