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Thread: In-flight upgrades
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Old Jan 14, 2008 | 3:40 pm
  #3  
Savage25
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Join Date: Oct 2003
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Originally Posted by nigelloring
that after the cabin doors are closed, upgrades aren't normally done. Is this true?
You can upgrade on SQ anytime during the flight as long as you have a credit card ready to pay the difference in fares between the two classes. The charge is processed through the same system used to process duty-free shopping charges. I'm not sure how the amount is determined, though.
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