They should be liaised with at all stages of planning the journey.
Air travel is costly to arrange for someone who is sick or disabled.
Potential costs can include transport to and from the airport, the ticket and expenses for an escort, the number of seats required to accommodate a stretcher or a reclining first class seat if this is cheaper or recommended, and the costs of accommodating any equipment that may need to accompany the patient. Oxygen levels and air pressures change at high attitudes. Therefore patients may be advised against flying if they have breathlessness or anaemia, are at risk of developing cerebral oedema or have recently received chest surgery. Great caution should be advised if cerebral metastases are present or suspected. There may also be an increased risk of thrombosis or pulmonary embolism.