By Bus Direct:

From Guayaquil terminal you can take a direct bus that leaves at three times: 5 AM, 1 PM, 5PM, this service is provided by the company CLP: Value U$S 5.5.

By Bus:

You may also make the trip in the non direct buses, that departure all day  every 10 to 15 minutes, so you have to go from the terminal in Guayaquil  to Liberty City. Value of passage: U$S 3.

In Libertad you can then take a bus to the Ruta del Sol and warn the driver to notify you at the Montanita stop . Value of passage: U$S 1.75

By Taxi: You can also take a taxi from the airport which cost us about $ 40.

Vans: There are services from the airport with direct vans or buses for 10-15 passengers Montanita. You should  hire prior to arrival in Ecuador.