Can you be 'downgraded' on a flight? You arrive at the airport, anticipating a pleasant flight - after all, you've paid more for that extra legroom! Or a comfy window seat. Or a business class. That's when you find out you've been.. downgraded! How come? And if you can get downgraded, is the opposite possible too? Then, what other secrets do airlines hide?  Experts claim downgrades do happen - and rather frequently at that! The reasons vary: the airplane can get unexpectedly swapped for a smaller one because of some technical issues. There have also been cases when people bought first-class tickets only to find out later there was no first class on the plane whatsoever! But the rules of downgrading and upgrading aren't the only secrets airlines, flight attendants, and airport staff don't want you to know. Interested? Then check out these surprising facts every traveler will like to know.

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