Checking in at the Airport

Hello, I would like to check in for the flight to Frankfurt.

Standard direct opening line at the airline counter.

Good day, could I please check in for flight LH 204?

Polite greeting using your specific flight number.

Here are my passport and my booking code.

I only have this one suitcase here.

Casual reply when the agent asks how many bags you want to check.

I would like to check this suitcase and take the bag with me.

Use this to distinguish hold luggage from cabin baggage.

Is the luggage too heavy or is it okay like this?

Useful when placing your suitcase onto the luggage scale.

I would most like to sit by the window.

Could I please get an aisle seat?

Polite request to ensure easy aisle access during the flight.

Is this small bag allowed in the cabin?

Which gate are we flying from and when is boarding?

Could you please tell me which gate I have to go to?

More polite phrasing if you cannot read or find the departure screen.