在机场登机的过程中，以下是一些常用的英语口语表达：
询问座位情况
"Can I have a window/aisle seat, please？"
需要转机
"I have a connecting flight to… Where's the transfer counter？ Will I have to claim and re-check my baggage for connecting flights？"
需要托运行李
"I'd like to check in my luggage."
找行李推车
"Where can I find a trolley？"
找登机门
"Which gate should I go to then？ Excuse me, where is the Gate xxx？"
机上服务
"May I have a blanket and a pillow？"
问路
"Excuse me, could you tell me where the ... is？"
询问航班信息
"What's the flight number of ...？"
询问登机口
"Where can I find the boarding gate for ...？"
询问行李托运处
"Where is the luggage check-in counter？"
询问安检处
"Where is the security check？"
出示登机证
（服务人员："Could you please show me your boarding pass？"）
（乘客："Sure, here it is."）
询问座位
"Where is my seat？"
询问行李放置
"Can I put my baggage here？"
询问行李超重
"Your luggage is overweight."
询问票种
"Single or return？"
询问座位调整
"Could you change my seat, please？"
询问座位倾斜
"May I recline my seat？"
询问是否可抽烟
"Is smoking allowed？"
询问行李数量
"How many pieces of luggage are you checking in？"
询问是否有手提行李
"Do you have a carry-on？"
询问行李放置位置
"Can you place your baggage up here？"
询问是否需申报物品
"Do I have to write down all the things I have to declare？"
询问机票和护照
"May I see your ticket and passport, please？"
以上是一些基本的英语口语表达，可以帮助你在机场顺利登机。