24% of European Pilots Fly While Too Fatigued to Work, ECA Finds

Almost a quarter of European airline pilots routinely fly while too fatigued to work, according to a survey of nearly 7,200 captains and first officers by the European Cockpit Association (ECA). Three in four respondents reported taking microsleeps in the cockpit — brief, involuntary episodes of sleep — at least once in the four weeks before the August survey.

The numbers matter because fatigue is a recognized safety risk in aviation. It impairs judgment, slows reactions, reduces alertness and weakens a pilot's response to unexpected situations. Long duty hours, insufficient rest, irregular schedules and time-zone crossings all contribute by disrupting the body's natural sleep cycle.

Under European aviation safety regulations, airlines must operate systems to identify, monitor and manage crew fatigue. The survey suggests those systems aren't working as intended in practice.

What does the data actually show?

The ECA findings paint a consistent picture of exhaustion and underreporting:

• 24% of pilots said they usually keep flying rather than report themselves unfit due to fatigue; another 16.8% call in sick instead.
• Only one in three pilots usually report themselves unfit for duty when fatigued.
• Half admitted operating a flight in the three months before the survey when they should have declared themselves too fatigued to fly.
• Almost half fear negative consequences from management if they report fatigue.
• Just 11.9% trust their airline's fatigue reporting system.

Put differently: at a typical two-pilot cockpit, the odds are significant that at least one pilot has flown unfit in the past quarter and didn't tell anyone.

Geography drives the spread. Pilots at airlines based in Ireland and Malta reported the highest microsleep rates and the greatest fear of management reprisals. Two in five pilots at Spain-based airlines — and a third at Ireland- and France-based carriers — said they usually fly when fatigued. The UK figure is one in ten. More than a third of respondents overall said they don't get enough rest to prevent fatigue accumulating over time.

Business model matters too. Only 15.6% of pilots at low-cost carriers believe their airline manages fatigue risk well, versus 18.6% at ACMI or wet-lease operators — companies that supply aircraft, crew, maintenance and insurance to other airlines.

Is 'commander's discretion' being abused?

Almost two in five pilots said they had used commander's discretion at least once in the month before the survey. The mechanism lets captains extend crew working hours or cut rest periods in exceptional circumstances.

Nearly 70% expressed concern about refusing to extend duty. That suggests a tool designed for genuine emergencies comes bundled with real pressure on flight crews. Pilots at low-cost and wet-lease operators, and at airlines registered in Ireland and Malta, reported the greatest concerns.

Ian Holder, managing director of aviation safety consultancy Baines Simmons, said the results expose persistent differences in how airlines and national authorities handle fatigue. "This survey captures how European pilots experience fatigue risk management in practice," he said. He cautioned the findings reflect pilots' first-hand experiences rather than direct measurements of safety outcomes — but noted the consistency of results over three years highlights areas needing attention. Holder pointed to Finland and the Netherlands as proof that stronger fatigue reporting cultures are achievable.

What does this change for airlines and regulators?

ECA President Capt Tanja Harter placed responsibility with airlines and regulators, not pilots. "This cannot be simply left to us – the pilots – to manage, while we are on the flight deck and expected to bring our passengers safely to their destination," she said.

Harter called on the European Union Aviation Safety Agency to strengthen fatigue management rules and enforce compliance with requirements for non-punitive reporting and proper use of commander's discretion. "Waiting for another three years to discover that nothing has changed is simply not an option," she said. "The problems are identified, solutions are there, and we as the European pilot community are ready to contribute. What is needed now is the political will to act."

For airline management, the message is blunt: a reporting system trusted by fewer than one pilot in eight is a compliance and reputational liability. Expect EASA to face renewed pressure to tighten enforcement — and expect carriers in Ireland, Malta and Spain to draw the sharpest scrutiny.