FlyerTalk Forums - View Single Post - Y/B/M Premier Instant Upgrade - How does it work? [ended 21 Aug 2025]
Thread: Y/B/M Premier Instant Upgrade - How does it work? [ended 21 Aug 2025]
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Old Jan 18, 2022 | 1:07 pm
  #14  
WineCountryUA
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Was this part of an international PremPlus reservation? There have been reports of the Instant Upgrade not working on the domestic B segments. Calling sometime works. Appears the underlying fare is not B
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