Originally Posted by yyzlhr
You need to refer them to AskBA question number 1784:
Thanks YYZLHR for the info. I'll double check the info on that. I know that both dates are available (Jan' 5th PHL-LHR BA66 and return on LHR-PHL on Jul' 18th BA67.
Where can I check the availability of U fare other than the BA site on the MFU checker?