FlyerTalk Forums - View Single Post - Using United Miles to Upgrade on Swiss from Biz to First
Old Sep 26, 2019 | 6:51 am
  #9  
chris63
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Originally Posted by flywithmiles70
Looks like our biz class ticket on LX is booked in class P. Can you please confirm whether I can upgrade that fare class with UA miles to First? If so, what's the process with LX. Thanks.
No P class is only upgradable with M&M miles.
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