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Old Oct 21, 09, 8:49 am
  #9  
eireman
 
Join Date: Nov 2000
Location: dublin,ireland AA ( 3mm)
Posts: 1,825
Originally Posted by family friend View Post
Oh, really? I was unaware of that! If I fly DUB-LHR on EI and then LHR-JFK on AA and upgrade the LHR-JFK I am not liable to pay the additional tax? I thought since the upgraded itinerary began in LHR I was.
Not liable as long as all on one tix, but buying on one tix might be more expensive than buying DUB/LHR on EI on a separate tix. You will have to run the numbers
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