Here are some English phrases that you will hear:
CHECKING IN (Before you fly):
Do you have any bags to check-in?
Would you like a window seat or an aisle or window seat?
Here’s your boarding pass.
Your flight leaves from gate number 18.
Your seat number is 27C
QUESTIONS TO ASK AT CHECK-IN COUNTER:
Which way do I go?
Where is gate number 18?
What is my seat number?
ON THE PLANE:
Please put your seat in the upright position.
Please fasten your seat belt.
There is no smoking on this plane.
Please turn off all electronic devices.
Place your luggage in the overhead compartments.
QUESTIONS TO ASK IN THE PLANE:
Where can I find my seat?
May I please have some water?
What time do we land?
AIRPORT VOCABULARY AND MEANING:
Check-in counter = The place where you take your bags and get your plane ticket or boarding pass.
Boarding pass = The ticket you need to get on the plane
Gate = The big door you walk through before you go on to the plane.
Luggage = The bags you will take on your trip.
I hope you all find this helpful. Happy travels
1-TO-1 Private Lessons 
Inés Barbero