Nearly One in Four European Pilots Fly While Fatigued

Nearly one in four European airline pilots routinely continue flying despite being too fatigued to work safely, while three-quarters have experienced involuntary microsleeps in the cockpit, according to a major survey highlighting persistent concerns about aviation safety, working conditions and fatigue management across the European aviation industry.

The findings, based on responses from almost 7,200 captains and first officers, have raised questions about whether existing safeguards are adequately protecting flight crews and passengers. The survey was conducted in August by the European Cockpit Association (ECA), which represents pilots across Europe. Its results point to a working environment in which insufficient rest, pressure to extend duty hours and concerns about management retaliation may discourage pilots from reporting fatigue before operating an aircraft.

The figures highlight a potentially serious problem for an industry in which alertness, concentration and rapid decision-making are essential to safe operations. Although fatigue is a recognised occupational risk in aviation, the survey suggests that many pilots continue to face circumstances in which acknowledging exhaustion may be perceived as a professional or employment risk rather than a necessary safety precaution.

Almost 24% of respondents said they usually continued flying rather than declaring themselves unfit for duty because of fatigue. Another 16.8% said they would call in sick instead. The findings suggest that pilots respond differently when they feel too exhausted to work, with some choosing not to operate and others continuing despite their concerns.

Fatigue can develop through a combination of extended working hours, inadequate rest periods, irregular schedules and flights across multiple time zones. These factors can interfere with the body’s natural sleep cycle, leaving pilots struggling to maintain the level of alertness required during demanding operations.

The consequences can extend beyond ordinary tiredness. Fatigue can impair judgement, slow reaction times, reduce situational awareness and make it more difficult to respond appropriately to unexpected events. In aviation, where crews must monitor complex systems, communicate effectively and make time-sensitive decisions, even brief lapses in attention can become a significant concern.

One of the survey’s most striking findings concerned microsleeps, which are brief, involuntary episodes of sleep that can occur when a person is severely tired. Approximately three-quarters of the pilots surveyed reported experiencing at least one microsleep while operating an aircraft during the four weeks preceding the survey.

Such episodes can last only a few seconds, and the person experiencing them may not always recognise what has happened immediately. Nevertheless, a momentary lapse in awareness can be particularly concerning in a cockpit, where pilots must continuously monitor flight instruments, aircraft performance, weather conditions and communications.

The survey did not establish that every reported microsleep resulted in a safety incident, nor did it directly measure the impact of fatigue on accident rates. However, the prevalence of these experiences among respondents raises important questions about the effectiveness of current fatigue prevention measures and the working conditions under which pilots are expected to operate.

The findings also revealed considerable differences between countries and airline operating models. Pilots employed by airlines based in Ireland and Malta reported some of the highest levels of microsleeps. More than one-third of respondents said they were not receiving sufficient rest to prevent fatigue from accumulating over time.

The proportion of pilots who said they usually continued flying while fatigued was particularly high among respondents working for airlines based in Spain, Ireland and France. Around two in five pilots at Spain-based airlines said they generally flew despite fatigue, while approximately one-third of those working for Ireland- and France-based airlines reported the same behaviour.

The corresponding figure among pilots working for UK-based airlines was about one in 10. These differences indicate that fatigue management experiences vary considerably across the European aviation sector. However, the survey results reflect the experiences of participating pilots and should not automatically be interpreted as a comprehensive measurement of safety performance across every airline in each country.

Another significant finding concerned trust in the systems designed to manage fatigue. Almost half of the respondents feared that declaring themselves unfit for duty because of exhaustion could lead to negative consequences from management. Only 11.9% said they trusted their airline’s fatigue reporting system.

These figures raise concerns about whether pilots feel sufficiently protected when making safety-related decisions. If crew members believe that reporting exhaustion could result in disciplinary action, unfavourable scheduling decisions or damage to their professional prospects, they may be less willing to communicate their concerns openly.

An effective safety system depends on employees being able to report hazards without fear of inappropriate punishment. In aviation, this principle is especially important because pilots may be the first people capable of recognising when their physical condition makes it difficult to perform their duties safely.

European aviation safety regulations require airlines to establish systems for identifying, monitoring and managing crew fatigue. These arrangements are intended to reduce risks associated with duty schedules, rest periods and the physiological demands of flying. However, the survey suggests that the existence of formal rules does not necessarily guarantee that pilots experience those protections consistently in practice.

Ian Holder, managing director of aviation safety consultancy Baines Simmons, said the findings illustrated persistent differences in the way airlines and national authorities manage fatigue risks. He emphasised that the survey captured pilots’ direct experiences rather than providing a direct measurement of aviation safety outcomes.

Holder also highlighted the significance of similar concerns emerging over three consecutive years. The persistence of the findings suggests that fatigue reporting and management remain areas requiring sustained attention rather than problems that can be addressed through isolated policy changes.

He pointed to Finland and the Netherlands as examples where stronger fatigue reporting cultures were achievable. Their experiences suggest that improvements may depend not only on regulatory requirements but also on workplace practices, management attitudes and the degree to which pilots feel comfortable reporting safety concerns.

The survey also identified differences between airline business models. Only 15.6% of pilots working for low-cost carriers believed their airline managed fatigue risks well. Among pilots employed by aircraft, crew, maintenance and insurance providers, commonly known as ACMI or wet-lease operators, the proportion was slightly higher at 18.6%.

Wet-lease companies supply aircraft and operational crews to other airlines, often helping carriers meet seasonal demand, cover capacity shortages or maintain services during operational disruptions. While these arrangements can provide flexibility to the aviation industry, they can also involve complex scheduling and operational relationships that make consistent fatigue management particularly important.

The results do not establish that every low-cost or wet-lease operator manages fatigue poorly. Nevertheless, the low levels of confidence among respondents suggest that some pilots believe their employers need to do more to identify and address exhaustion before it affects their ability to work safely.

Concerns about extended working hours emerged as another major issue. Nearly two in five respondents said they had used a procedure known as commander’s discretion at least once during the month before the survey. The procedure allows a captain, in exceptional circumstances and subject to applicable rules, to extend crew duty hours or adjust rest arrangements when operational conditions require it.

Such discretion is intended to provide flexibility in unusual situations rather than serve as a routine solution to scheduling difficulties. However, almost 70% of surveyed pilots expressed concern about refusing to extend their duty periods. The finding suggests that some crew members may feel pressure to accept additional working hours even when they have reservations about their fatigue levels.

Pilots working for low-cost carriers and wet-lease operators, as well as those employed by airlines based in Ireland and Malta, reported particularly strong concerns about these issues.

The distinction between a permitted operational extension and pressure to work beyond reasonable limits is central to the debate. Captains must consider the safety of their crews and passengers, but their decisions can become more difficult if they believe that refusing an extension could provoke conflict with management or create problems for their employment.

European Cockpit Association president Captain Tanja Harter said responsibility for fatigue management should not be left solely to individual pilots. She argued that flight crews should not be expected to manage the risks themselves while simultaneously being responsible for delivering passengers safely to their destinations.

Harter called on the European Union Aviation Safety Agency to strengthen fatigue management rules and ensure that airlines comply with requirements for non-punitive reporting and the appropriate use of commander’s discretion. Her position reflects the association’s view that effective safeguards require action from both regulators and airline management.

She also warned against allowing the issue to continue without meaningful progress. The aviation industry, she argued, already understands many of the problems and has potential solutions available, making stronger implementation and political commitment essential.

For passengers, the findings offer a reminder that aviation safety depends on more than aircraft maintenance, technology and airport security. The physical and mental condition of flight crews is also fundamental to safe operations, particularly when pilots work irregular schedules or face repeated demands for extended duty periods.

Addressing fatigue will require airlines to examine staffing levels, scheduling practices, rest opportunities and the workplace culture surrounding safety reporting. Regulators must also ensure that existing requirements are applied consistently and that pilots can declare themselves unfit without fear of inappropriate retaliation.

The survey does not demonstrate that European aviation as a whole is unsafe, and its findings should not be treated as proof that fatigue has caused a specific accident. It does, however, reveal a substantial gap between the safety standards the industry seeks to maintain and the experiences reported by many pilots.

With thousands of flight crew members describing microsleeps, inadequate rest and concerns about reporting procedures, the pressure is now on airlines and regulators to demonstrate that fatigue is being treated as a serious operational risk.

The central challenge is to create conditions in which pilots can make safety decisions without fear of professional consequences. Ensuring that exhausted crew members can report themselves unfit, receive appropriate rest and refuse unsafe extensions of duty is essential not only for their wellbeing but also for the confidence of the travelling public.

The findings provide a clear warning that fatigue management cannot depend on written policies alone. It must be reflected in everyday scheduling decisions, management practices and a workplace culture that places safety ahead of operational pressure.