乘坐飞往美国航班旅客可以免费托运两件总重量在60公斤以下的行李。的英文翻译

The passengers taking flights to the United States can have two pieces of check-in baggage(luggage) at a total maximum of 60Kg free of charge.

The passengers taking flights to the US are allowed to check in two pieces of checked baggage(luggage) not to exceed a total of 60Kg for free.

etc.

passengers fly to USA could check in two pieces of baggage for free if the total weight below 60kg.