Disclaimer: This article provides general information only and is not a substitute for professional medical advice, diagnosis or treatment. People at risk of anaphylaxis should speak with their doctor or allergy specialist before travel and follow their personalised ASCIA Action Plan. In an emergency in Australia, call 000.
Draft prepared by Emirhan Aydinoglu, with editorial review by Immunity Group Australia.
For Australians living with food allergy, air travel can bring a unique mix of medical risk, uncertainty and anxiety. On the ground, urgent medical care is usually easier to access. In the air, passengers and families must rely on preparation, clear communication, immediate access to emergency medication and the aircraft crew’s response until the plane lands.
Food allergy management while flying is not about panic. It is about understanding the difference between perceived risk and practical risk, then taking evidence-informed steps before, during and after the flight. While flight-anxiety programs or air travel simulations may help some people who are generally afraid of flying, food-allergic travellers need a different focus: practical preparation, clear allergy communication, accessible medication and reliable information before they board.
What is the real allergy risk on planes?
One of the most common concerns is whether nut allergens can spread through an aircraft ventilation system. Current evidence is reassuring on this point. Allergy & Anaphylaxis Australia’s air-travel FAQ explains that aircraft filtration systems use HEPA filters and that cabin air circulation helps reduce the spread of airborne particles. The same guidance also notes that there is no evidence that people are at risk of anaphylaxis from breathing in food allergens on planes.
That does not mean there is no risk. It means the more practical concern is usually closer to the passenger: allergen residue left on surfaces such as tray tables, armrests, seat belts, seats and entertainment screens. Food proteins can remain on surfaces from previous passengers and may be transferred to a person’s hands or food.
This is why practical steps matter. Pre-boarding when available, wiping down the seating area, washing hands or using disposable wipes before eating, bringing safe food and keeping adrenaline devices within reach are more useful risk-reduction strategies than relying on cabin announcements alone. Allergy & Anaphylaxis Australia also reminds travellers that hand sanitiser may kill germs, but it does not remove food allergens from hands or surfaces.
Flying reactions appear uncommon, but anxiety is still real
Recorded moderate to severe allergic reactions on planes appear to be uncommon. Allergy & Anaphylaxis Australia summarises research showing that allergic reactions account for about 2–3% of in-flight medical events, or approximately 0.7 cases per million passengers. Severe allergic reactions requiring adrenaline were reported at an even lower rate.
However, those figures need to be interpreted carefully. Some passengers with food allergies reduce risk by bringing their own food, avoiding airline food and taking extra precautions. Also, not every reaction is reported to the crew or to the airline.
A global survey of more than 4,700 food-allergic passengers and caregivers, summarised by the American Academy of Allergy, Asthma & Immunology, found that 98% of respondents said food allergy added anxiety to air travel. The same survey reported that some promised accommodations were not provided in-flight, including cabin announcements, buffer zones and allergen-free food options. It also found that more than 40% of in-flight allergic reactions captured by the survey were not reported to flight crew or the airline after landing.
For passengers and families, this shows why food allergy and flying is not only a medical issue. It is also a systems issue. Airline policies vary, communication can be inconsistent, and travellers may not know whether the precautions discussed before the flight will actually be supported once they board.
Why this matters in Australia
This issue is especially relevant in Australia. According to ASCIA Food Allergy Fast Facts, food allergy occurs in around 5–10% of children and 2–4% of adults in Australia and New Zealand. ASCIA also explains that allergic reactions can range from mild symptoms such as hives, swelling, stomach pain or vomiting to anaphylaxis, which is a medical emergency requiring immediate treatment with adrenaline.
Australia also has one of the highest reported rates of childhood food allergy in the world. Murdoch Children’s Research Institute reports that one in 10 babies and one in 20 primary school-aged children have a food allergy. Many children outgrow allergies to foods such as egg, milk and wheat, but allergies to peanut, tree nuts, seeds and seafood are more likely to persist.
Long-running Australian research is helping to better understand this picture. The HealthNuts study, led by Murdoch Children’s Research Institute, recruited 5,300 children at 12 months of age and has followed them through childhood and adolescence to better understand the natural history of food allergy and why some children outgrow allergy while others continue to live with lifelong risk.
Overseas travel adds another layer of risk
For families travelling overseas, the risk is not only the cuisine. It is the combination of unfamiliar ingredients, language barriers, different food-labelling laws, different emergency systems and variable access to medications.
Different countries have different food safety laws, including how packaged food is labelled and what is expected of food service staff. Countries without food allergen labelling laws may present greater risk for travellers with food allergy.
Before travelling overseas, families should research food labelling rules in the destination country, identify local emergency numbers, consider translated allergy cards, check whether there is a local patient support organisation and speak with their doctor about medication and documentation. Not all countries have Epi pens, and additional adrenaline autoinjectors should be taken on the person when travelling overseas with relevant medical documentation, especially to countries where Epi pens may not be available at all.
Airlines and policymakers have a role too
Passengers can prepare, but they should not have to manage this risk alone.
Airlines and policymakers can reduce anxiety and improve safety through clearer policies, consistent staff training, practical pre-boarding options, transparent food information, clear documentation requirements and better reporting of in-flight allergic reactions.
The goal should not be to promise a completely allergen-free flight. That is not realistic, especially when passengers bring their own food on board. The more achievable goal is consistent, practical and evidence-informed support so passengers with food allergy know what to expect before they travel.
Help shape safer air travel for people with food allergy
Air travel should not feel like a gamble for people living with food allergies. Airlines and policymakers must work with passengers, clinicians and advocacy groups to create clearer, more consistent safety standards, including better crew training and awareness, practical pre-boarding options for all individuals travelling with food allergies, transparent food information, accessible emergency procedures and improved reporting of in-flight allergic reactions.
This is why the Allergy Microbiome Foundation has conducted an Air Travel Survey for Australians travelling with food allergies, with results expected to be available in the second half of 2026.
By sharing real travel experiences, food-allergic travellers and their families can help drive the policy changes needed to make flying safer, fairer and less stressful for everyone affected by food allergy.
Further reading
AAAAI: Managing Food Allergy at 30,000 Feet
Allergy & Anaphylaxis Australia: Air Travel With Food Allergy
Bjelac J, Abrams EM, Iglesia EGA. Food allergies on vacation-there and back again. Ann Allergy Asthma Immunol. 2023 Apr;130(4):438-443. doi: 10.1016/j.anai.2023.01.008. Epub 2023 Jan 20. PMID: 36690205; PMCID: PMC11618846. Full Article.
Food Allergy Research & Resource Program, University of Nebraska
Ham JH, Suh SM, Cha JE, Ahn K, Sohn MG, Kim HY. Global Perspectives on Allergen Labeling: Harmonization of Regulations and Practices. Allergy Asthma Immunol Res. 2025 May;17(3):288-303. doi: 10.4168/aair.2025.17.3.288. PMID: 40414807; PMCID: PMC12117482. Read this article here.
Immunity Group Australia: Flying With Food Allergies Shouldn’t Feel Risky
Murdoch Children’s Research Institute: Food Allergy
Murdoch Children’s Research Institute: HealthNuts Study
Quick Allergy Travel Check List
Disclaimer: This article provides general information only and is not a substitute for professional medical advice, diagnosis or treatment. People at risk of anaphylaxis should speak with their doctor or allergy specialist before travel and follow their personalised ASCIA Action Plan. In an emergency in Australia, call 000.
Draft prepared by Emirhan Aydinoglu, with editorial review by Immunity Group Australia.
