Flight attendants across the industry have named the passenger bathroom habits that frustrate them most on board commercial flights. Mateusz Maszczynski, a former Middle East and European cabin crew member, listed five recurring offenders in a June 2026 piece for Paddle Your Own Kanoo: going barefoot in the lavatory, struggling with the door, leaving the mirror dirty, rushing to the bathroom right after boarding, and treating the lavatory like a personal spa.
These complaints are not isolated to one writer. Multiple cabin crew sources interviewed separately by other outlets describe the same patterns, pointing to unlocked doors, excessive water use, and poorly timed bathroom trips as the most common irritants crew members face during a flight. The recurring nature of these complaints suggests a consistent, industry-wide pattern rather than one individual’s pet peeves.
Bare Feet and Socks in the Lavatory Top the List
Going to the lavatory without shoes ranks as one of the most cringed-at habits among cabin crew. Maszczynski explained that liquid pooled on a lavatory floor is rarely water, and “if you don’t mind stepping foot in someone else’s urine, or all manner of other gunk, go for it,” he wrote, adding that side-eye from a flight attendant is their way of signalling that shoes should go back on before a bathroom visit.
Other crew members echo this warning with added detail. Veteran flight attendant Barbi told Islands that keeping shoes on is one of the simplest ways passengers can make a crew member’s shift easier. Etiquette expert Lisa Grotts told Reader’s Digest that bare or stocking feet expose passengers to broken glass, blood, or vomit on the lavatory floor, noting that “this includes socks.”
Passengers Struggle to Open or Properly Close the Door
Many passengers misjudge how lavatory doors work, despite the design staying largely unchanged for decades. Maszczynski noted that travellers either use the handle like a normal door or push where a sign reads PUSH, yet some passengers reportedly damage the ashtray fitted to the door while trying to force their way in.
A separate and more disruptive version of this problem involves passengers leaving the door unlocked or not fully closed after use. According to a New York Post report citing travel experts at Alpine Elements, this is the single biggest in-flight irritation for many cabin crew, since it creates confusion among waiting passengers and forms queues that block crew workspaces during service.
Mirrors, Floors, And Sinks Left in Poor Condition
Crew members consistently describe lavatories left in a state that requires extra cleanup between uses. Maszczynski pointed to paper strewn across the floor, splashed water around the basin, and unflushed toilets as recurring complaints, alongside passengers who brush their teeth so vigorously that toothpaste and saliva end up sprayed across the mirror.
Other lavatory habits add to the cleanup burden during a flight. Travel and Leisure, as cited by Travel Noire, reports that excessive water use strains an aircraft’s limited onboard supply, particularly on longer routes. The same report notes that flushing tissues or wet wipes instead of using a waste bin frequently causes blockages that crew must then resolve mid-flight.
Bathroom Trips Immediately After Boarding Frustrate Crew
Passengers who head straight for the lavatory the moment they board puzzle many flight attendants, who note that airport terminals offer plenty of bathroom facilities before a flight even begins. Maszczynski admitted he was unsure why this habit specifically irritates so many crew members, though he linked it to the stress of boarding and the urgency of finding overhead bin space.
Timing problems extend beyond boarding. Islands reports that crew members are especially bothered when passengers attempt to reach the lavatory during meal or beverage service, since U.S. aircraft aisles can be as narrow as 15 inches and a loaded service cart can block the path entirely. A sudden bump during this kind of squeeze risks spilling hot drinks or creating a slip hazard for other passengers.
Lengthy Bathroom Visits Frustrate Waiting Passengers and Crew
Cabin crew increasingly describe long lavatory visits as a growing concern, particularly on overnight or long-haul flights where passengers use the space for skincare routines. Maszczynski wrote that flight attendants sometimes wonder whether a passenger inside the lavatory “has collapsed,” given how long some visits stretch on.
He recommended saving skincare routines, such as applying undereye gels, for after landing rather than mid-flight. This view aligns with broader crew guidance on bathroom use: Reader’s Digest reports that flight attendants advise passengers to limit lavatory time to essential tasks, including handwashing, and to avoid checking emails or applying makeup while others wait in line.
How This Compares with Other Crew-Reported Cabin Etiquette Complaints
Bathroom-related complaints sit within a wider set of passenger behaviours that flight attendants have flagged in recent months. In a separate case reported by Paddle Your Own Kanoo, a passenger who touched a Delta Air Lines (DL) flight attendant was arrested and charged with a crime carrying a maximum sentence of 20 years, illustrating how some passenger conduct escalates well beyond a simple pet peeve.
Hygiene-related frustrations also extend to galley and crew rest areas, which passengers are advised to avoid while waiting for the lavatory. Barbi told AOL that galleys and jumpseat areas function as one of the few spaces where crew can briefly decompress during a flight, and that passengers crowding into these zones, even while simply waiting their turn, adds further strain during an already demanding shift.
Practical Tips Crew Members Recommend to Passengers
Cabin crew across multiple reports converge on a small set of practical fixes that reduce friction during a flight:
- Pack slippers or soft shoes in a carry-on bag to avoid going barefoot in the lavatory.
- Use the bathroom at the airport terminal before boarding whenever possible.
- Wash hands for a full 20 seconds and avoid touching shared surfaces unnecessarily.
- Avoid the lavatory during active meal or beverage service.
- Keep visits brief and leave the space as clean as it was found.
- Dispose of tissues and wipes in a waste bin rather than flushing them.
All in All
Flight attendants from multiple airlines and regions describe a consistent set of lavatory-related frustrations, from bare feet and mishandled doors to poorly timed visits and extended stays. While Maszczynski’s account centres on five specific habits, corroborating reports from Islands, Reader’s Digest, and Travel and Leisure point to the same underlying issues, suggesting these complaints reflect a broader pattern across the cabin crew profession rather than the views of a single flight attendant.