Depends on time of day. It will take ~25 minutes to the centr of the city (and vice versa) with no traffic. With traffic, starting at about 4.30pm, it can take well over an hour each way. Taxi is a flat fee of $35 each way. On way back to airport, get one of the SUVs/Vans that are outside a hotel. Uber is about the same. Not much to see right outside of airport, would have to head into city centre