As of Feb. 9, 2011, the departure tax charged to passengers on international and domestic flights departing Ecuador is included with other taxes in the price of the airline tickets. (Out of Quito, the tax is $40.80 and from Guayaquil, $29.78.) Previously, passengers had to separately pay the departure tax in cash within the airport.
(ITN thanks Mark Grantham of Galapagos Travel [Aptos, CA] for bringing this to our attention.)