PromoTrade Expo Indonesia 2018 Promos Discount 20% During TEI 2018 Garuda Indonesia offers up to 20% discount on flights to Jakarta during the upcoming Trade Expo Indonesia 2018. Simply Applied the following promo code TEI18 during your flight's booking on Garuda Indonesia website/mobile app, or at your nearest Garuda Indonesia ticketing office. Discount Go Express Discount voucer for the upcoming Trade Expo Indonesia 2018 Visitors, Buyers and Exhibitors on GO Express services and Airport to Airport services.