I signed up for EF and am disappointed. It constantly shows C inventory on certain transatlantic legs, but when trying to book directly with the CK desk using a SWU, the agent says there are no seats available. The first couple of times I assumed there was a slim margin of error between what EF shows and what the AA agent reads on the screen. However, recently EF showed C7 on a flight from MIA to LHR but the CK agent said that while there are plenty of seats available for purchase in business class, there are 0 seats available for a SWU. My only choice was to waitlist.

I was so frustrated with EF and AA that I created a prompt on ChatGPT explaining my frustration. This was the response:

“On American, C ≠ usable SWU inventory 100% of the time anymore.

What ExpertFlyer is reading:

• Raw fare bucket availability published in the GDS (C7)
  

What AA.com is enforcing:

• Upgrade-eligible C inventory, which is now a subset of that bucket
  

In plain English: AA can publish C seats for pricing, fare construction, or revenue flexibility while simultaneously blocking those same seats from SWUs. This is especially common on:

• Transatlantic flights
  
• High-premium leisure routes
  
• Flights with strong PE → Biz upsell demand
  

ExpertFlyer sees what could be sold. AA.com enforces what can be upgraded.”

If ChatGPT is correct, then what good is my annual subscription to EF?

Thoughts?