Originally Posted by Pedro M

Taxi Green provides a very good service. Their counter is inside the terminal, just before you leave the arrivals area. If you walk outside, you will find several people offering informal taxi service. Be careful not to use them - stick with a reputable taxi provider.

You can also arrange your return trip to the airport with the taxi driver. Just let them know when and where you need to be picked up. Depending where you are staying and the time of the day of your departure, it might take more than 90 minutes to travel from Miraflores to the airport. Take that into account when you make your return plans.