Hi

I was booked on a BA ticket LHR/JFK, BA175 dep LHR 0955 arr JFK 1245 connecting on to the BA4330 (AA operated) JFK/SFO dep JFK 1530.

AA appear to have cancelled that 1530 departure and I've been rebooked onto a later flight, the BA 4334 (AA operated) dep JFK 1745.

I'd rather leave LHR later, say on the BA113 at 1130, than spend 5 hours in JFK in the Admirals Club.

It's an I class fare booked through a corporate TA.

What's the chances of BA allowing me to move to the later LHR/JFK flight?

Thanks!