✔ 最佳答案
I have taken 卡塔爾航空, the airplane is really ok, good for the price you paid and seldom delay and safe.
But I think you need to transit at 卡塔爾airport. The airport is small but many people is waiting there for transit to other country. You have to line up for long Q to buy your food or redem your food and also you hardly even can get a seat to sit.
The toilet is even worst, the floor are all wet and no one will clean the toilet.
You can take Birtish Airline, Emirates, Cathay Pacific to 維也納.
But I think 卡塔爾航空offers the cheapest price.