International travellers arriving at Orlando Airport have to go through the immigration checkpoint (passport control).  They will have been asked to complete a green card on the aircraft which has to be handed in with the passport. 

International travellers will proceed to level 3 where they will pass through the Transport Security Administration and into the airside terminal where you will take the train/monorail to the main terminal baggage reclaim area.  Look for the signs that show Baggage Reclaim A and Baggage Reclaim B.  Screens will show you will belt number your baggage will be on.

Domestic travellers will pass through a jetway which takes you into the airside terminal of the airport and proceed directly to the main terminal for collection of luggage.

All car hire/rental companies, buses and Orlando Airport taxis are on the ground level (Ground Level Transportation). If you are being picked up then you will be on Level 2.

For details of which car park you should use for your airline check the car parking page of this website.