No boarding without PCR. If you fly from SDQ Referencia San Isidro give you the result in less than 24 hrs. Walk in service if you have the itinerary, email the itinerary to email@example.com and just show up, cost 5,000 DOP, may take an hr. open 11:00 AM. Referencia somewhere else will obviously have a different email if they do the walk in service. YES I know, I've done it.