奥利机场

Assuming you mean the Opera Garnier, the original 19th century opera house north of the Champs Elysees, you can take the RER regional rail line "B" into Paris, and change at Chatelet to the "A" line which stops at the Opera station.http://parisbytrain.com/wp-content/uploads/2008/05/metro120x84.pdf

Orly坐轻轨到终点，换7号线直达OPERA。
PS LS的都是机器人吗？

下载个巴黎锦囊，里面的地铁图可以一目了然。

大巴过去或者做轻轨什么的

下个锦囊或者用GOOGLE地图，清晰简单