Originally Posted by danger

Thanks for that. My HKG-US-HKG flights are in A and the fare basis is AAARRVN8. I assume you are referring to point one of the below:

BEFORE DEPARTURE
----------------
RE-PRICE WITH BE LOW OPTIONS AND PROVIDE THE BEST
FARE TO PASSENGER -
1. IF SAME ROUTING AND BOOKING CLASS -
USE ANY CX/KA HISTORICAL FARE FOR R E-PRICE AND
NEW TICKET MAY BE EQUAL/HIGHER OR LOWER THAN
THE PREVIOUS TICKET OR
2. IF SAME ROUTING BUT DI FFERENT BOOKING CLASS -
USE ANY CX/KA HISTORICAL FARE FOR RE-PRICE AN D
NEW TICKET MUST BE EQUAL OR HIGHER THAN
PREVIOUS TICKET OR
3. USE ANY CURRENT CX /KA FARE FOR RE-PRICE AND NEW
TICKET MUST BE EQUAL OR HIGHER VALUE THAN THE
PREVIOUS TICKET.

The "provide the best fare to passenger" is what I assume you're basing your position on.

That said, point two is interesting. To my lay mind, this implies that if A isn't available but F is, then that would be fine. However, I don't think F fares were part of this sale.

I'll keep an eye out for A space opening up which I guess is very unlikely.