Oxygen delivery

The usual flow rate for in-flight oxygen is 2 L per minute via nasal cannulae. In patients currently using supplemental oxygen, refer to or discuss with a respiratory specialist to determine changes to oxygen therapy. Those needing oxygen at flow rates of 4 L per minute or more at sea level are not fit to fly.

The requirement for in-flight oxygen must be communicated to the airline before travel, often by the completion of a medical travel clearance form, which can be found on the airline website.

Consider the need for oxygen at the airport (including for stopovers) because most airlines only provide oxygen during flight. Some airlines allow passengers to carry and use their own small oxygen cylinders on board.