Aeropuerto Internacional La Aurora (Guatemala City) Authorized taxis wait out the front of departures. Buy a coupon (Q80 for Zona 1, Q70 for Zona 10 or 13) at the booth before the exit. Shuttle buses to Antigua (Q80) wait out the front, too – just listen for someone yelling 'Antigua, Antigua.'
Aeropuerto Internacional Mundo Maya Taxis wait outside, charging Q30 to Flores or Santa Elena. For Tikal or El Remate, go out to the main road and hail a passing minibus.