www.delta.com
顾客反馈
it is about the same price as everywhere else. But it is fairly easy to use it.
从delta官方网站定的。网站显示的是人民币价格，并提供了换成美元的参考价为1032.citi visa卡实际收取$1037。据说还要收3%的手续费，到目前2个星期了还没收手续费，可能要到statement day收取。
It is much easier to buy tickets directly from airline company