FlyerTalk Forums - View Single Post - Help to check BA seat availability and BA flight loads
Old Sep 28, 2022 | 10:25 am
  #815  
BarneyMcGrew
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Originally Posted by ctdubl07
Thank You BM.
I am looking to book via American and use their System Wide Upgrade to book from main cabin to business.
Fom the AA website re Systemwide Upgrades:

On British Airways

Enjoy a confirmed upgrade from most Business fares to First, from Premium Economy to Business, or from Economy to Premium Economy when flying transatlantic on British Airways.

Systemwide upgrades can be used for one-way travel for up to 3 flight segments on British Airways marketed and operated flights or British Airways operated flights marketed by American. At least one American marketed flight must be in the itinerary to be eligible.

https://www.aa.com/i18n/aadvantage-p...e-upgrades.jsp

I believe what you describe as main cabin is world traveller on BA (Economy). If so, according to the AA website any upgrade would be to World Traveller Plus (premium economy).
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