A liquid ejection apparatus including: a liquid ejection head and ejection openings; a tank; an air communication device; a supply channel; a return channel; a supply device; an adjusting device; and a controller, wherein the controller performs a liquid circulation control by controlling: the adjusting device such that a channel resistance value of the return channel is less than a predetermined maximum value; and the supply device to supply the liquid into the inside channel, wherein, when the liquid is circulated by the liquid circulation control, the controller starts a liquid discharge control for discharging the liquid by making the channel resistance value larger than that in the liquid circulation control, and wherein the controller controls the air communication device such that an inside of the tank is interrupted from the ambient air in at least a part of a period of the liquid circulation control.