As in every Country you need to go through customs on arrival. Throughout most of Costa Rica most places do not have an address. When they ask you where you will be staying tell them “50 metros Este de los condominios, Tres Ríos de Coronado, Osa, Puntarenas”. If you chose a SANSA flight proceed to the connector flights. If you chose land transportation head to the baggage pickup.
After customs you can stop at the Duty Free to get wine or spirits at a decent price.
Then you will get your luggage and take it to the X-Ray machine.
After you clear X-Ray, you are ready to go. If you rented a vehicle from the airport or booked a shuttle, you will be met by a representative on the other side of the X-Ray machine. Just look for their signs. Through experience, if you land anytime after the noon hour we suggest you Uber or Taxi from the airport to “Irazu Best Western Hotel” where you can stay the night at a very reasonable price ~$85.00 US. Take a swim, rest up from your flight , eat your free breakfast in the morning and Alamo will deliver your car to the Hotel that morning.