Ten of the best ways to get a free flight upgrade

Gone are the days when a smart suit, puppy-dog eyes or a nice smile during check-in will get you champagne-sipping in business class quicker. Free flight upgrades are rare - and sometimes just a matter of pure luck. However, there are certain things you can do to increase your chances.

Here Amy Chan, marketing director at Kiwicollection.com, shares her list of things you can do to increase your odds.

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