之后的一年中，你搭乘United, Continental和US Airways美国国内航线都可以享受行李托运免费的待遇了！
1、Check In行李的时候必须用BMI Diamond Club Membership
2、如果不想把里程累积到BMI Diamond Club Membership卡上，在Check In完行李之后或者在登机口的时候把常旅客信息改到自己常用的里程卡即可。
A) You can check in with the bmi Silver number in the reservation to get free checked bags and then switch your frequent flyer number at the gate。）
B)Once you enter your BMI Diamond Club number into the United website, it should allow you & everyone else on your itinerary to have up to 2 checked bags for free. Alternatively, you should be able to show your BMI Diamond Club card at the airport counter to get your 2 bags checked for free.
On United for example you can provide one mileage number for mileage accrual and another for Star Alliance benefits." So, you can use the BMI for the free checked bags but collect your freq flyer miles from the trip in your United acct.