14Aug, 2025
Airline Denied ESA Letter Boarding – Here’s What You Need to Know and Do

For many pet owners, their emotional support animal (ESA) is not just a companion – it’s essential for their mental well-being. That’s why boarding an airline with your ESA should be straightforward when you have a valid ESA letter. Yet, for countless travelers, there’s a frustrating reality: airlines can deny boarding even with an ESA letter.

If you’ve faced this situation or want to make sure it never happens to you, this guide will walk you through:

  • Why airlines deny ESA letters

  • The current FAA and DOT rules on ESAs

  • How to ensure your ESA letter meets all legal requirements

  • Your rights and the steps you should take if denied

  • How to apply for a fully compliant ESA letter today

This isn’t just about knowing your rights – it’s about making sure you never get left stranded at the airport with your ESA.

Why Airlines Deny ESA Letters

Before you get upset at the airline, it’s important to understand the reasons behind ESA letter denials. Airlines are not required to accept every ESA letter they see, especially after changes in federal law.

Here are the most common reasons for ESA boarding denial:

  1. Outdated Laws – The U.S. Department of Transportation (DOT) no longer requires airlines to accept emotional support animals the same way they accept service animals. Many airlines now treat ESAs as regular pets unless you meet very specific requirements.

  2. Letter Not From a Licensed Mental Health Professional (LMHP) – Your ESA letter must be issued by a U.S.-licensed therapist, psychologist, psychiatrist, or other LMHP who is legally authorized to practice in your state.

  3. Incomplete Letter – Airlines require specific details, such as the professional’s license number, type of license, date of issue, and direct confirmation that you have a qualifying mental or emotional disability under the DSM-5.

  4. Expired ESA Letter – Most airlines require an ESA letter dated within the last 12 months.

  5. Wrong Format or Missing Documentation – Some airlines ask for specific forms or verification calls to your LMHP. If your provider cannot respond in time, you risk denial.

The Current FAA and DOT Rules on ESA Travel

Until January 2021, ESAs had more federal protection under the Air Carrier Access Act (ACAA). However, a major FAA & DOT travel update changed everything.

  • Service animals (like guide dogs for the visually impaired) are still fully protected.

  • Emotional Support Animals are no longer guaranteed free travel. Airlines can classify them as pets and require pet fees.

  • Airlines have the final say on whether they will accept ESAs under their own internal policies.

This means:

  • You must check the airline’s ESA policy before booking your ticket.

  • You may need to pay a pet travel fee unless the airline has special provisions for ESA travel.

Airlines That Still Allow ESAs

While many U.S. airlines no longer accept ESAs for free, some international carriers and smaller regional airlines still allow ESA travel if you have the right documentation. Examples may include:

  • Certain South American airlines

  • Some Asian and Middle Eastern carriers

  • Select charter flight companies

For these airlines, a valid, compliant ESA letter is still essential.

How to Ensure Your ESA Letter Is Airline-Compliant

If you want your ESA to board without hassle, your ESA letter should include:

  1. Issued by a Licensed Mental Health Professional in the U.S.

  2. Written on Official Letterhead with contact details

  3. Date of Issue Within the Last 12 Months

  4. Professional’s License Number and State of Issue

  5. A statement confirming:

    • You have a mental or emotional disability recognized in the DSM-5

    • The ESA is part of your treatment plan to alleviate symptoms

  6. No Online “Instant” Approvals Without Assessment – Airlines may verify the authenticity

Steps to Take If an Airline Denies Your ESA Letter

If you’re denied boarding with your ESA, follow these steps immediately:

  1. Stay Calm and Professional – Arguing aggressively can escalate the situation.

  2. Ask for Written Explanation – Request the airline put the reason for denial in writing.

  3. Contact Your LMHP Immediately – They may be able to confirm your letter’s validity directly with the airline.

  4. Check the Airline’s ESA Policy – Some airlines require their own forms in addition to your ESA letter.

  5. Rebook or Arrange Pet Travel – If no resolution is possible, consider paying the pet fee or rescheduling.

The Benefits of Having a Compliant ESA Letter Even With Stricter Airline Rules

Even though airline laws changed, a valid ESA letter still offers you:

  • Housing Protection – Under the Fair Housing Act (FHA), landlords must allow ESAs in no-pet housing without pet fees.

  • International Airline Acceptance – Some foreign carriers still honor ESA letters.

  • Travel Flexibility – Charter flights and certain carriers may accept ESAs without pet fees.

  • Proof for Pet Policies – Even if the airline denies boarding, your ESA letter serves as proof of medical necessity for other purposes.

Why You Should Get Your ESA Letter Now

If you wait until right before your trip, you risk not having the correct paperwork ready. Airlines can take several business days to verify your letter.

By applying now, you:

  • Avoid last-minute stress

  • Have time to meet airline-specific form requirements

  • Can ensure your letter is compliant with housing laws too

How Our ESA Letter Service Works

  1. Quick Online Assessment – Fill out a brief questionnaire about your needs.

  2. Licensed LMHP Review – A licensed professional in your state evaluates your eligibility.

  3. Receive Your ESA Letter – Delivered to your email, formatted to meet airline and housing requirements.

  4. Ongoing Support – We help with airline verification calls if needed.

Bottom Line – Protect Your Right to Travel With Your ESA

Airlines have tightened ESA travel rules, but the right letter from the right professional can still make a difference. Whether your goal is boarding with your ESA or simply keeping them in your housing without extra fees, compliance is key.

Don’t wait until the airline says “No” – get your ESA letter now and travel with peace of mind.

Lets Apply for the ESA letter and make sure that your pet stays with you in every No Pet Zone & Policy, Please fill out this form and our team will contact you ASAP.
Form Link