Croatian Airports
Croatia has nine airports. The biggest one is the Zagreb airport „Franjo Tuđman“, built in 2017. The other six are in the biggest towns (Split, Zadar, Osijek, Rijeka, Pula, Dubrovnik) and two are on the islands of Brač and Mali Lošinj.
Airlines flying to Croatia
Croatian domestic airline is Croatia Airlines, but various international airlines (like Lufthansa, British Airways, Alitalia, Turkish Airlines, Air France...) fly to and from Croatia. Tourists are mostly interested in low-budget flights which are very common in high-season. German Wings, Ryanair, EasyJet and Wizz Air fly to smaller Croatian airports May through October.
Getting around the airport in Croatia
All of the signs at the airports are translated into English so it's not very likely you'll get lost, but here's some basic vocabulary and phrases to practice before you land:

How would you say the following in Croatian?
I would like to buy a ticket to Warsaw. →
Answer
Htio/Htjela bih kupiti kartu za Varšavu.
One-way or return ticket? →
Answer
Jednosmjerna ili povratna karta?
At what time does the plane to Warsaw take off? →
Answer
U koliko sati polijeće zrakoplov za Varšavu?
How long does the flight last? →
Answer
Koliko traje let?
When should I check-in? →
Answer
Kad bih trebao/la napraviti check-in?
How much weight can I put in my luggage? →
Answer
Koliko kilograma prtljage mogu uzeti?
Where can I weigh luggage before my flight? →
Answer
Gdje mogu izvagati prtljagu prije mog leta?
I can't find my luggage. →
Answer
Ne mogu pronaći svoju prtljagu.
I would like to confirm / cancel / change my reservation. →
Answer
Želim potvrditi /otkazati / promijeniti rezervaciju.
The flight has been cancelled. →
Answer
Let je otkazan.
Please, fasten your seatbelts →
Answer
Molimo, vežite pojaseve.
Do not smoke on the airplane. →
Answer
Ne pušite u zrakoplovu.
We wish you a pleasant flight! →
Answer
Želimo vam ugodan let!