I am not impressed so far with the prices I see for a OS flight CDG to VIE (in 5 months):
original prices: cheapest coach EUR 60, classic coach EUR 86, business EUR 158
so I bought classic coach and here are my offers:
- guaranteed upgrade EUR 110
- bid upgrade EUR 100 minimum (and one can go up to EUR 600, 4 times the business ticket’s price).

That makes no sense obviously. Any chance to be able to bid EUR 50 later on? It is a 2-hour flight.