1. Excuse me, can you please help me find my seat?

2. May I have a blanket and pillow, please?

3. Is there a vegetarian option for the meal?

4. Could you please bring me a glass of water?

5. I would like to request an extra pillow, if possible.

6. Can I have a headset for the in-flight entertainment?

7. What time will we arrive at our destination?

8. Is there a charging port for electronic devices?

9. Can I have a cup of tea or coffee, please?

10. Are there any duty-free items available for purchase?

11. Could you please lower the cabin temperature?

12. Is there a restroom available on this flight?

13. Can I change my seat to an aisle or window seat?

14. How much longer until we start boarding?

15. Can you please provide more information about the connecting flight?

16. Is there a baggage claim area at the destination airport?

17. Can I use my electronic devices during the flight?

18. Can I have a customs declaration form, please?

19. What is the maximum weight allowed for carry-on luggage?

20. Can I have an extra blanket for my child, please?

飞机上常用英语包括：

登机牌 (Boarding Pass)：用于证明乘客登机身份的凭证。

行李 (Baggage)：乘客携带的物品，包括行李箱、手提行李等。

航班号 (Flight Number)：用于标识航班的唯一标识符。

座位号 (Seat Number)：用于标识乘客在飞机上的座位。

出发地 (Departure City)：飞机起飞的城市。

目的地 (Destination City)：飞机到达的城市。

起飞时间 (Departure Time)：飞机起飞的时间。

到达时间 (Arrival Time)：飞机到达的时间。

海拔高度 (Altitude)：飞机所在的高度。

飞行模式 (Flight Mode)：用于控制飞机的各种模式，如起飞、降落、巡航等。

空速 (Airspeed)：飞机相对于空气的运动速度。

内部温度 (Internal Temperature)：飞机内的温度。

外部温度 (External Temperature)：飞机外的温度。

氧气水平 (Oxygen Level)：飞机上的氧气供应水平。

液体限制 (Liquidrestrictions)：航空公司在安检时对液体物品的规定和限制。

这些英语词汇在乘坐飞机时非常常用，特别是对于国际航班或需要与航空工作人员交流的情况。