Experts Reveal Dirtiest Spots on Planes Are Not the Bathrooms

Contrary to popular belief, airplane bathrooms are not the dirtiest places during a flight. Hygiene experts and studies conducted at airports and on planes worldwide identify several hotspots for bacteria exposure that passengers commonly touch from airport security to baggage claim.

The first major contamination point is the plastic trays used at airport security checkpoints. A study at Helsinki Airport found these trays harbor more viruses and bacteria, including flu strains and coronavirus, than some airport restrooms. Passengers are advised to sanitize their hands immediately after security.

Inside the aircraft, the seat pocket in front of passengers is the most contaminated area, often containing used tissues, food wrappers, and sometimes diapers, with bacteria such as E. coli and mold detected. The tray table is also highly contaminated, with over 2,100 bacteria units per square inch, far exceeding the cleanliness of airplane toilet flush buttons. Passengers should disinfect these surfaces before use.

Other frequently touched surfaces like air vents, seat belts, and armrests are rarely thoroughly cleaned between flights, accumulating germs. While the toilet bowl itself is relatively clean, door handles, locks, and flush buttons are touched by many and pose contamination risks. Using paper or wipes to open doors and washing hands afterward is recommended.

Airport lounges are not exempt; buffet areas and serving utensils are used by hundreds daily, so choosing pre-packaged food and cleaning tables before eating is advised. Finally, baggage claim conveyors and suitcase wheels carry large amounts of bacteria, so hand sanitizing after luggage retrieval is important.

Simple hygiene practices such as using disinfectant wipes, hand sanitizer, and frequent handwashing can significantly reduce bacterial exposure and make air travel safer and more pleasant.