FlyerTalk Forums - View Single Post - Upgrading one segment of flight?
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Old Feb 25, 2023 | 1:11 pm
  #4  
cfischer
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call it in. An agent might be able to leave the X you have for SFO-BOS and add the MEL-SFO in I while waitlisting SFO-BOS.

Will be YMMV situation. But I'd try it for sure.
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