If you have seen the ESAN airline code on an airline booking or while researching accessible air travel, it refers to an emotional support animal. More precisely, ESAN is an airline Special Service Request (SSR) code used to identify travel with an emotional support animal in the cabin, subject to government regulations and the airline’s own rules.
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The important point is that seeing ESAN listed as an industry code does not mean every airline must accept an emotional support animal in the cabin. Rules have changed in several countries, and emotional support animals are not always treated in the same way as trained assistance or service dogs.
What Does the ESAN Airline Code Mean?
The ESAN airline code is the IATA Special Service Request code for a passenger travelling with an emotional support animal in the aircraft cabin. IATA’s current accessibility SSR guidance lists ESAN under service animals in the cabin and notes that its use is subject to government regulations.
A SSR code is information attached to a passenger’s reservation. Airlines, travel agents and airport teams can use these standardised codes to communicate a particular service request or travel need. ESAN is therefore not an airport code, flight number or airline identifier. It is a four-letter booking code used within airline reservation systems.
If you are unfamiliar with SSR terminology, my guide to airline and airport disability codes explains many of the codes disabled travellers may encounter.
What Is an Emotional Support Animal?
An emotional support animal provides comfort or emotional support through its presence. This is different from a trained assistance or service dog that has been individually trained to carry out specific work or tasks for a disabled person. That distinction matters when flying because laws and airline policies do not necessarily give emotional support animals the same status or cabin access as trained assistance dogs.
IATA’s 2026 guidance on service dogs distinguishes trained service dogs from pets and emotional support animals. It states that emotional support animals do not have the same training or regulatory status and may instead be subject to the airline’s normal pet transport rules.
Is the ESAN Airline Code the Same as the SVAN Code?
No. ESAN and SVAN are different SSR codes.
ESAN stands for travelling with an emotional support animal in the cabin. Acceptance of emotional support animals varies between airlines and countries and is subject to the relevant government regulations.
SVAN means travelling with a service animal in the cabin. It is used to identify a passenger travelling with a trained service animal, subject to the airline’s requirements and applicable regulations.
The distinction is important because a trained service dog may have legal protections that do not apply to an emotional support animal. When planning to travel with an animal make sure to explain the animal’s role and ask the airline which documentation and booking code apply to your journey.
Does an ESAN Code Guarantee That an Emotional Support Animal Can Fly in the Cabin?
No. The ESAN airline code itself does not create a right to take an emotional support animal into the cabin. IATA’s SSR reference specifically makes ESAN subject to government regulations. Airlines must also follow the laws of the countries involved in the journey, and individual carriers can have their own animal transport policies where the law permits this.
This means an airline may recognise the ESAN booking code but still not accept emotional support animals as assistance animals. In some cases, the animal may have to travel under the airline’s pet policy instead. That could involve different size restrictions, carriers, fees or cabin rules.
What Are the Rules for ESAN on Flights to and From the United States?
United States rules are a useful example of why passengers should not assume that ESAN means automatic cabin access. Under current US Department of Transportation rules, an emotional support animal is not classed as a service animal under the Air Carrier Access Act. Airlines are required to recognise qualifying trained service dogs, but they are not required to treat emotional support animals as service animals.
An airline may therefore treat an emotional support animal as a pet, subject to its normal pet policy. This can affect whether the animal is accepted, where it can travel and whether a charge applies.
For a trained service dog travelling on a flight covered by US rules, different requirements apply. Airlines may ask passengers to complete the relevant US Department of Transportation service animal forms.
What About the ESAN Airline Code on UK Flights?
In the UK, official Civil Aviation Authority guidance focuses on recognised guide and assistance dogs. The CAA advises passengers travelling with an assistance dog to inform their airline in advance and notes that airlines may ask for evidence that the dog has been trained to a safe standard for air travel.
An emotional support animal should not automatically be assumed to qualify as an assistance dog under UK rules. If you are travelling from the UK with an emotional support animal, check the airline’s current policy before booking and also check the entry rules for your destination.
For more help planning a trip in the United Kingdom, my guide to travelling the UK with children is a great starting point.
Why Might the ESAN Airline Code Still Appear in Airline Systems?
Airline reservation systems use standardised codes across many countries and carriers. A code can remain useful for communicating information even when the legal treatment of that service differs between jurisdictions. That is why the ESAN airline code can still appear in industry SSR references while some governments and airlines no longer recognise emotional support animals as service animals.
The booking code identifies the request. The applicable law and airline policy determine whether the request can be accepted and under what conditions.
How Do You Add the ESAN Airline Code to a Flight Booking?
If your airline accepts emotional support animals, contact the airline before travel and explain what type of animal you are travelling with. Do not rely on entering a code yourself unless the airline specifically asks you to do so. IATA’s accessibility guidance makes clear that passengers are not expected to be experts in SSR codes. Airline or travel industry staff should select the appropriate code after understanding the assistance or service being requested.
When you contact the airline, ask:
- whether emotional support animals are accepted on your specific route;
- whether the animal will be treated as an emotional support animal, assistance animal or pet;
- which documents are required;
- whether advance notice is required;
- whether there are size, species or carrier restrictions;
- whether any fees apply;
- what rules apply at connecting airports; and
- whether the destination has animal health, vaccination, quarantine or import requirements.
Keep written confirmation of what the airline has agreed, particularly if your itinerary involves more than one carrier. It might be helpful to store important travel documents in a Google drive so you can easily access them from anywhere that your phone has an internet connection.
Does ESAN Mean You Will Receive Airport Assistance?
Not necessarily. The ESAN airline code records information about travelling with an emotional support animal. It does not automatically describe any other assistance you may need while moving through the airport. If you also need help with mobility, wayfinding, communication or another disability-related requirement, tell the airline separately. More than one SSR code can be added to a booking when appropriate.
For example, a disabled traveller might have an animal-related SSR code as well as another code describing airport assistance such as the use of a wheelchair. My guide to getting help at the airport explains how special assistance usually works.
ESAN and Non-Visible Disabilities
Some people use emotional support animals in connection with non-visible disabilities or mental health conditions. The fact that an impairment is not obvious does not make a person’s support needs less important. However, airline terminology should not be used as a diagnosis. IATA’s accessibility guidance advises airline and travel staff to focus on the service a passenger needs rather than trying to diagnose the person’s condition.
If you need additional airport assistance beyond travelling with an animal, explain those needs clearly when you book. You may also find my guide to what PRM means for disabled travellers useful when planning accessible air travel. I also have a guide dedicated to breaking down what special assistance looks like for those with hidden disabilities.
FAQ About the ESAN Airline Code
What does ESAN stand for on a flight booking?
ESAN is the SSR code used for travel with an emotional support animal in the aircraft cabin, subject to government regulations and the airline’s policy.
Is the ESAN airline code an IATA code?
Yes. The ESAN airline code appears in IATA’s accessibility Special Service Request guidance. It is an SSR code used in airline reservation systems.
Is an emotional support animal the same as a service dog?
No. A trained service or assistance dog is individually trained to perform tasks for a disabled person. An emotional support animal provides comfort through its presence and may not have task-specific training. The legal distinction affects airline access in many countries.
What is the difference between the ESAN airline code and the SVAN SSR code?
The ESAN airline code relates to an emotional support animal. The SVAN code relates to a service animal travelling in the cabin. Different legal and airline requirements can apply to each.
Can an airline refuse an ESAN request?
Yes. Acceptance depends on government regulations, route-specific requirements and the airline’s current policy. The existence of the ESAN airline code does not itself guarantee acceptance.
Should I contact the airline before travelling with an emotional support animal?
Yes. Check directly with the operating airline before booking where possible. If several airlines operate different parts of your itinerary, confirm the rules with each carrier because their policies may differ.
Airline codes can make a booking look more complicated than it really is. For the ESAN airline code, the key point is simple: the code identifies travel with an emotional support animal, but it does not override government rules or an airline’s current animal policy.
Before you travel, check the rules for the airline, every country on your itinerary and the animal itself. If you need other disability assistance as well, request that separately so the booking accurately reflects the support you need.
Continue Learning About Airline Codes
The ESAN airline code is just one of several Special Service Request (SSR) codes airlines use to record a passenger’s medical, disability or assistance needs. Other codes can indicate different wheelchair types or assistance, reduced mobility, visual or hearing impairments, travelling with an assistance dog, or other support requirements. There are even codes for which type of meal you want to order and many other codes used within the airport and by airlines.
Understanding these SSR codes can make it easier to check that the right assistance has been added to your booking. You can explore my guides to airline SSR disability codes to learn what the different codes mean, when they are used and what support you may need to arrange before you fly.
- Airline and airport codes and what they mean
- Download a copy of all of the airline SSR disability codes for free
- Airline meal codes explained
- Download a list of all of the airline meal codes for free
- Learn which airline meal codes are for travellers with allergies
- Download a free, printable checklist for MEDA passengers to complete before they fly
Continue Learning Airline Wheelchair Codes
ESAN is just one of several airline codes used to identify passengers travelling with animals. Understanding the differences between animal travel codes can help you request the correct assistance, meet your airline’s requirements and avoid confusion before you fly. Explore our guides to airline animal travel codes to learn when each code is used and what it means for travelling with service animals, emotional support animals and pets.
- Learn more about the codes airports and airlines use
- Find out about the different disability codes used by airlines
- What does PETC mean?
- What does SVAN mean?
Continue Planning Your Travels With Autistic Kids
- Find out about the help available if you are travelling through an airport
- Discover whether a cruise with an autistic child would work for your family
- Find out how to make travelling with ADHD manageable
- Learn more about the Hidden Disabilities Sunflower Lanyard
- Check out guides to all of the different destinations we have travelled to with autistic children
- Learn step-by-step how to set up the accessibility feature on Google maps
- Learn more about our favourite sensory toys for travelling
- Discover an app that helps you locate a playground anywhere in the world
- Always alerted at the last minute that the little one needs a toilet? Find a toilet anywhere with this app
Continue Planning Your Accessible Trip With My Guides
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