From the PH website, and it sounds about right to me....
On TAME Airlines, guests can check one bag with 20 kilos (44 lbs.) per person. Guests can take a carry on bag, soft-sided, approximately 7 kilos (15-16 lbs.) and must fit into the Carry on bag control device that they have at the airport. Boeing 727-100 IS 18ä x 12ä x 9ä. B727-200 is 22ä X 12ä X 9ä. The overweight charge is $2.90 per extra kilo each way, which works out to $1.50 per lb. one way or $3 per lb. round trip and you will be expected to pay cash. Your checked luggage will be searched prior to departure to the Galapagos Islands ; your carry on luggage will be checked upon arrival into the Galapagos Islands . At times, TAME Airlines has been lenient with checked baggage weight restrictions, but they adhere to the carry-on bag restrictions when using planes with the open overhead compartments.
Additionally, the National Park authorities have installed a desk for luggage inspection at the domestic departure hall for all flights to Galapagos. Bags will be checked for ãorganicä material, like food, plants and even wood or anything made of wood. It is impossible to carry any item which might contain bacteria.
If you are booked on connecting flights in the domestic United States , we highly recommend that you re-check your luggage at your international gateway city before boarding the flight to Ecuador.