hi , i have a suggestion which you can fly from Omaha NE, USA to Beijing or Shanghai ,China and then transfer to Xian .here is a useful website for you :www.air-sss.cn , maybe u can got the ticket by the best price . by the way , will u go to Xian for holiday travel ? It is a beatiful city with a long histry .If u have any another question , u can ask me ?