Originally Posted by
Tobias-UK
Even if there is I class inventory left the ticket will be repriced. As the outbound sector has been flown it is likely any fare difference will be calculated based on the fares available at the time of purchase.
FWIW: I have changed several flights after flying the outbound (all exAMS) and I have never been charged more than €300. But I could of course have been lucky.
I even had the change fee waived because of the circumstances.