If your international flight arrives at 2 PM we don't recommend reserving the 3 PM shuttle. It usually takes about 45 minutes to pass through customs, although it can take much longer. The [shuttle](/costa-rica/transportation/shuttles) does not leave from the airport and if you miss the shuttle there isn't a refund. If you're arriving from any of the airports, you should arrive at least 2 hours before a scheduled departure time.