"The airport is international."

Translation: L'aéroport est international.

[StellaFrance]

Can we use l'aeorgare as well? The road signs to my nearest international airport say l'aerogare rather than l'aeroport.

[AmineHadji1]

aérogare represents the buildings of an airport. It doesn't include the roads for the planes or even the planes themselves

[StellaFrance]

Ok, thanks!

[Rekty]

Aérogare sounds pretty interesting to me, haha! But yeah, just use Aéroport, it's an international word and it is known (and used!) everywhere.