Originally Posted by
George Purcell
The trick is that I want to go AUS-PHL-PRG while holding the PHL-PRG segment and the availability is AUS-PHL-LHR then PRG on BA.
If you want to change it to AUS-PHL-PRG , then there has to be availability on AUS-PHL for travel onto PRG ; if AA does not use married secctor availability for that route, then standalone availability is needed otherwise married availability.
The ssearch via Heathrow doesn't help for what you want ; what is the date of travel ; would be interesting to see what EF indicates