MFU CW to F on connecting flight
Hello There,
I am about to buy TLV-IAD return CW ticket. In the TLV-IAD flight: both TLV-LHR & LHR-IAD are operated by B767 so no chance for MFU. On the return IAD-TLV flight both of the IAS-LHR & LHR-TLV flights are operated by B777, and I would like to try and do MFU in these flights. However, the LHR-TLV has no seats in F available for upgrade (while IAD-LHR has). Is there anyway I can upgrade only the IAD-LHR segment (BA.COM won't let me do so while booking)? And if so - How much will it cost me (32500 miles as usual?).
Thanks in advance, gordo6.