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Thread: Upgrading Singapore Airline SQ flights with M&M eVoucher or miles?
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Old Oct 17, 2025 | 1:05 pm
  #77  
DownUnderFlyer
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I am contemplating upgrading a flight on a 2 class 737. Looking at the M&M website, I need booking classes B or Y for that. However, SQ re-alligned some of their fare classes and now E is also a fully flexible booking class. Has anyone had any luck in upgrading an E Class ticket using M&M?
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