在机场时问"在哪里托运行李"，英语怎么说好？

Where can I check in my luggage?

在哪里托运行李?
where's the baggage claim?

请问在哪里托运行李?
Would you tell me where the baggage claim is,please?

Excuse me, could you pleas tell me where I can check in my luggage?

Ps.这样礼貌些

excuse me，where can I check in my luggage

Where could I check the luggage?

Where is Luggage Check-in?