Pre-Flight Assessment and Clearance for COPD Patients

Initial Screening Assessment

The British Thoracic Society recommends that COPD patients with sea-level SpO2 >95% and no exercise desaturation can fly without supplemental oxygen or further testing, while those with SpO2 <92% require in-flight oxygen, and patients with SpO2 92-95% need risk stratification based on exercise desaturation or hypoxia-altitude simulation testing 1
Patients with SpO2 >95% do not require supplemental oxygen if no additional risk factors are present 1
Patients with SpO2 92-95% require further assessment based on risk factors 1
Patients with SpO2 <92% require in-flight oxygen 1
For patients already on home oxygen, the European Respiratory Society recommends increasing the flow rate by 2 L/min during flight 2, 3

The European Respiratory Society identifies hypercapnia (PaCO2 >6.7 kPa or 50 mmHg) as a risk factor requiring further evaluation 4
The British Thoracic Society recommends that patients with FEV1 <50% predicted require further evaluation 1
Severe dyspnea or current bronchospasm are risk factors requiring further evaluation 4
Coexisting cardiac disease is a risk factor requiring further evaluation 1
Recent exacerbation within 6 weeks is a risk factor requiring further evaluation 1
Lung cancer or restrictive lung disease are risk factors requiring further evaluation 1

The European Respiratory Society recommends standard flow rates of 2-3 L/min via nasal cannula to replace oxygen lost at cabin altitude 6, 2
For home oxygen users, the European Respiratory Society recommends increasing the baseline flow by 2 L/min 2, 3

The European Respiratory Society lists current pneumothorax (closed or open) as an absolute contraindication for air travel 8, 7, 9
Severe unstable cardiac disease is an absolute contraindication for air travel 4
Recent thoracic surgery (<2 weeks without radiographic confirmation of resolution) is an absolute contraindication for air travel 1
PaCO2 ≥6.7 kPa (50 mmHg) is a relative contraindication requiring careful evaluation 4
PaO2 ≤6.7 kPa (50 mmHg) at sea level is a relative contraindication requiring careful evaluation 4

The British Thoracic Society recommends that patients carry a physician letter stating diagnosis, oxygen requirements, and recent blood gas results 8, 9, 1
The European Respiratory Society recommends completing an airline medical form (MEDIF) and advance notification to the airline 1

The British Thoracic Society emphasizes that patients with stable COPD and normal resting saturation may still develop significant hypoxemia during flight 5, 10
The European Respiratory Society warns that the combination of cabin altitude, sleep, and mild physical activity creates cumulative hypoxic stress 10
High carboxyhemoglobin levels from smoking can further compromise oxygen delivery 5