FlyerTalk Forums - View Single Post - Adding checked bag to an existing KLM booking
Old Jun 19, 2023 | 11:44 am
  #2  
irishguy28
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You either pay the "online" fee in advance, or you pay the "airport" fee at the airport.

Fees don't increase as time passes; once you miss the online option, then there's only the higher airport fee available to you.
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