Hi....

I am in possession of a LHR-BKK return in F (EU discounted ticket) but the flights I require are full. I can fly with China Eastern in F to PVG which is in my itinerary.

Has anyone flown with China Eastern in F? Is it worth purchasing a new ticket with CZ which costs £2k or should I take a voluntary downgrade in BA or Qantas to J which is available.

How does BA or Qantas J compare to CZ F???

Thanks for your imput !