How to Get a Doctor's Note for a Cancelled Flight, Hotel, or Travel Insurance Claim

Adam Z. Kawalek, MD

May 9, 2026 · 10 min read

You woke up the morning of your flight with a 102° fever. Your trip is non-refundable. The airline says you need <em>physician documentation</em> to claim a medical exception. You're sick, exhausted, and now you need to figure out how to get that documentation in the next few hours — without sitting in a clinic waiting room while your departure window closes.

I see this scenario several times a week. Patient about to lose hundreds or thousands of dollars on a non-refundable booking, scrambling for a piece of paper that turns the loss into a refund. The good news: most major carriers and travel insurers have well-defined medical-exception policies, and a properly written physician note unlocks them. The less-good news: most travelers don't know these policies exist until they're already sick, and the documentation has to meet specific standards or claims get denied.

This is a physician-authored guide to the documentation that airlines, hotels, cruise lines, and travel insurers actually accept — what to ask for, what to avoid, and how to give your refund claim the best chance of approval. I've reviewed thousands of telehealth visits over the past 15 years, including hundreds tied to travel cancellations. The patterns are consistent. The advice below reflects them.

The medical-exception policies most travelers don't know exist

Almost every major airline, hotel chain, cruise line, and travel insurance company has a medical-exception or medical-emergency clause buried somewhere in their terms of service. These clauses allow refunds, rebookings, or claim payouts for travelers who become medically unable to travel — but only with proper physician documentation.

The policies vary in name ("medical waiver," "medical exception," "trip cancellation due to illness," "compassionate refund"), but they all require the same core thing: a signed letter from a licensed physician confirming that the traveler was medically unable to travel during the booked dates. Carriers I see this for regularly:

• Airlines: Delta, United, American, Southwest, JetBlue, Alaska, Spirit, Frontier — all have medical-exception refund or rebooking provisions
• Hotels: Marriott Bonvoy, Hilton Honors, Hyatt, IHG, Wyndham, Airbnb (host-discretionary)
• Cruise lines: Royal Caribbean, Carnival, Norwegian, MSC, Princess, Holland America
• Travel insurance: Allianz Travel, Travel Guard, World Nomads, AIG, Generali, Berkshire Hathaway Travel Protection — these are explicit medical-claim products and physician documentation is the central piece
• Trains and rail: Amtrak, Brightline, Eurail (for U.S. citizens abroad)

If your carrier or insurer is on the list above — or any other major one I didn't list — they almost certainly have a medical exception. Most travelers default to assuming a non-refundable booking is gone forever. It usually isn't.

What carriers actually want to see on the note

Across the carriers I've worked with, the documentation standard is remarkably consistent. A note that gets refunds approved looks like this:

• Issued by a licensed physician (MD or DO) — not a nurse practitioner letter, not a self-attestation form, not a pharmacy receipt
• The physician's full name, NPI number, and state medical license number — claim adjusters often verify these against state licensing boards
• The dates the patient was medically unable to travel — these need to overlap with the booked travel dates
• A clear statement of medical inability to travel — language like "the patient was medically unable to travel from [date] through [date] due to a medical condition under our care"
• Physician signature and date of issue
• Carrier addressing — a "Re: [Carrier Name] — booking [REF]" line at the top is not strictly required but it accelerates claim processing significantly

What carriers do not need (and should not see):

• Your specific diagnosis — under HIPAA (45 CFR Part 164), you are not required to disclose your diagnosis to a third party to validate a medical claim. The physician's determination of inability to travel is the documentation
• Your full medical history
• Lab results, imaging, or treatment notes
• Insurance information (other than booking-related)

This last point matters. I've seen patients voluntarily forward their entire urgent-care discharge paperwork to an airline thinking it'll strengthen their case. It usually doesn't help and it exposes more PHI than the carrier has any right to see. A clean physician statement of inability to travel is exactly what they need — nothing more.

How major airlines handle medical-exception refunds

Each airline's process is slightly different but the underlying documentation standard is the same. A few patterns worth knowing:

Delta Air Lines

Delta's medical-exception process is among the most documented. Submit a refund request via Delta's website citing medical reasons, then attach the physician note. Refunds for non-refundable fares are typically processed within 7-10 business days when documentation is in order. Delta's claim portal also accepts the note for SkyMiles redeposit if the ticket was an award booking.

United, American, Southwest, JetBlue

United's MyTrips has a "refund request" path that asks for medical documentation upload. American Airlines processes through Customer Relations. Southwest typically issues travel funds rather than cash refunds, but a physician note can extend the funds expiration window or convert to a full refund in extenuating cases. JetBlue's process closely mirrors Delta's. In all four cases, a physician-signed note addressed to the carrier — with the booking reference visible — moves through claim review faster than a generic "to whom it may concern" letter.

Award and credit-card-redemption tickets

Tickets booked with miles or credit-card travel credits often have separate medical-exception terms tied to the loyalty program rather than the airline. American Express Travel, Chase Ultimate Rewards, and Capital One Travel all have medical-exception clauses for prepaid bookings made through their portals. The physician note serves the same purpose — but submit it through the redemption portal, not directly to the airline.

Hotels: what's actually refundable when you're sick

Hotel cancellation policy depends on the rate type you booked. Standard refundable rates have a 24-48 hour cancellation window with no documentation needed. Prepaid non-refundable rates — the ones marketed at a discount in exchange for losing the cancellation right — are where the medical-exception path matters.

For Marriott Bonvoy, Hilton Honors, and Hyatt prepaid stays: a physician-signed note submitted to the property's front office (or to the loyalty program's claim line) often unlocks a partial or full refund as a one-time goodwill exception. The hotel chain's customer service is significantly more accommodating than airlines, and a single sentence — "my physician advised me I was medically unable to travel during the booked dates" — combined with the attached note typically resolves the claim.

For third-party bookings (Expedia, Booking.com, Hotels.com, Priceline): the prepaid rate's cancellation policy is set by the OTA, not the hotel. Submit the medical-exception claim through the OTA's customer service. The hotel itself usually can't override the OTA's policy.

Airbnb is the messiest of the bunch — host policies vary widely and Airbnb's "extenuating circumstances" policy historically excluded illness for reservations made before the COVID-era policy updates. As of 2024, Airbnb does have a medical-exception path for the host's strict cancellation policy, but it requires documentation submitted through Airbnb's resolution center and approval is not guaranteed.

Cruise lines: where physician documentation matters most

Cruise lines are the strictest carriers when it comes to medical-cancellation documentation, and also the most accommodating once they have it. The reason is operational: a sick passenger boarding a cruise can become a full-ship public-health issue, so cruise lines have well-developed medical-cancellation pathways and they take physician notes seriously.

Royal Caribbean, Carnival, Norwegian, and MSC all have explicit medical-cancellation policies that require physician documentation submitted before embarkation. The note needs to clearly state the patient is medically unable to travel during the cruise dates. With proper documentation, refunds (or full credit toward a future cruise) are typically issued within 30 days. Travel-protection plans sold by the cruise line — Carnival's Vacation Protection, Royal Caribbean's CruiseCare — have separate claim processes, but the underlying documentation requirement is the same.

One detail that trips people up: cruise lines often require notification of cancellation before the embarkation time, not just before the cruise leaves port. If you're sick the morning of departure, contact the cruise line immediately — even if you don't have the physician note in hand yet. Tell them the note is forthcoming and get the cancellation logged in their system before the embarkation cutoff. Then submit the note within their claim window (typically 30-60 days).

Travel insurance: the documentation game

If you bought travel insurance — Allianz Travel, Travel Guard, World Nomads, AIG, Generali, or any of the major carriers — physician documentation is the central piece of the claim. These products are explicitly designed to refund non-refundable trip costs when a covered event prevents travel, and "medical inability to travel" is the most common covered event.

Travel insurance claim processors look for three things on the physician note:

• Dates of medical inability to travel overlapping with the booked travel dates
• Physician credentials (NPI, state license) verifiable against medical-board databases
• Acute onset — the medical condition was unforeseeable at the time of booking. Pre-existing condition exclusions are the single biggest reason travel insurance claims get denied. If you've been managing the same condition for months and were approved for travel by your treating physician, claim denial is likely. If you developed an acute illness (flu, food poisoning, stomach virus, COVID, severe migraine) after booking but before travel, claims are usually approved

A common mistake: travelers buy travel insurance, then wait until after the trip date to file a claim. Most travel insurance policies require notification within 30-60 days of the cancellation event, and physician documentation dated around the cancellation date — not three months later — is much more credible to claim adjusters. File early.

Another common mistake: assuming a generic urgent-care visit summary will work. Most travel insurers want a separate physician statement specifically attesting to medical inability to travel during the trip dates. The urgent-care visit confirms you were sick; the standalone physician statement confirms you were medically unable to travel — they're different documents serving different purposes in the claim.

When a doctor's note WON'T help your refund claim

I want to be honest about the cases where a physician note doesn't change the outcome. Saving you the $29.99 if it won't help is more valuable than collecting the fee on a claim that's destined to be denied:

• Pre-existing conditions you've had for months. If you've been managing chronic back pain, anxiety, or any other condition for the past 6+ months, a same-day note saying you're "unable to travel" because of that condition will not pass travel-insurance pre-existing-condition exclusions. The condition has to be acute or newly worsened.
• Generic anxiety about flying. Aviophobia is a real condition, but most carriers and insurers do not consider it grounds for medical refund unless it's a documented acute clinical episode (panic attack with ER visit, etc.). A physician confirming you're "too anxious to fly" is not the same standard as "medically unable to travel."
• Expected travel discomforts. Motion sickness, mild jet lag fatigue, expected first-trimester pregnancy nausea — these don't meet the medical-inability standard most carriers require.
• Cosmetic or elective procedures. If you scheduled a procedure that conflicts with your trip, that's a scheduling decision, not medical inability.
• Family member illness. Some travel-insurance policies cover trip cancellation due to family-member illness, but the documentation standard is different — the family member's physician needs to attest to their condition. SickSlip cannot issue a note for a family member who isn't our patient.

If your situation is in this list, save your money and look at the carrier's other refund pathways (e.g., Southwest's travel-fund extensions, hotel goodwill exceptions, OTA dispute resolution). A physician note isn't the right tool here.

How to maximize your refund approval chances

When the situation does call for a physician note, here's how to give the claim the best possible chance of approval:

Why a SickSlip travel-refund note works

SickSlip is built specifically for the use case this article is about. A few details that matter:

• Carrier-addressed by default. Our intake captures your carrier name and (optional) booking reference. Both appear at the top of the PDF in a "Re: [Carrier] — booking [REF]" line, anchoring the document to your specific claim.
• Board-certified physician signature. Every note is signed by a licensed MD with active state medical-license credentials and an NPI number — verifiable against state licensing boards.
• QR-code authenticity verification. The note carries a QR code that resolves to a live verification page. When a claim adjuster scans it, they see — within 30 seconds — that the document is authentic, who issued it, and that it's specifically a travel-refund note addressed to your carrier.
• HIPAA-compliant content. No diagnosis is disclosed. Just the physician's determination of medical inability to travel during your booked dates.
• Same-day delivery, rush available. Most notes are signed within a few hours of submission. Rush processing ($8) puts you at the front of the queue — most rush notes are signed within 30 minutes.
• Permanent re-download. The note stays in your dashboard indefinitely. If a carrier asks for re-submission weeks later, log in and re-download.
• $29.99 flat. No subscriptions, no hidden fees. If your situation doesn't qualify (pre-existing condition, etc.) we don't issue the note and there's no charge.

A real scenario

An illustrative case from earlier this month — composite details, but representative of the pattern. A traveler woke up the morning of a Delta flight to Cancun with a stomach bug. Trip total: $1,400, all non-refundable. Boarding in 4 hours. Sat in bed with their phone, filled out a SickSlip intake at 7:18 AM, paid $37.99 for rush. A board-certified physician reviewed the case, signed the note at 7:31 AM. The PDF — addressed to Delta with the booking reference at the top — was emailed to the patient at 7:32. They forwarded it to Delta's refund portal at 7:45.

Delta confirmed receipt that afternoon. Refund issued in 6 business days: $1,400 back on the original payment method. Total time the patient spent on the refund process: about 14 minutes. Total cost: $37.99.

That's the system working as designed. Carriers have medical-exception policies because they don't want to keep money from genuinely sick travelers. Travelers don't always know how to access those policies. A clean physician-signed note is the bridge.

A final word from the physician

If you're reading this on the morning of a trip you can't take because you're sick — I'm sorry. Trip cancellations on top of being sick is genuinely awful. But the system isn't trying to keep your money. The medical-exception policies exist precisely so that genuinely sick travelers can recover the cost of trips they couldn't take.

Document your symptoms. Don't push through and travel sick (it makes you worse, and it makes other travelers around you sick). Get the physician note. Submit the refund claim. Then go back to bed.

— Dr. Adam Z. Kawalek, MD
Founder & Supervising Physician, SickSlip

This article is general information about carrier and travel-insurance medical-exception policies, not legal or financial advice. Carrier policies change; consult your specific carrier or insurer's current terms when filing a claim. Refund approval is at each carrier's discretion.

Adam Z. Kawalek, MD

Board-Certified Physician · Founder, SickSlip · Cedars-Sinai · Johns Hopkins

Dr. Kawalek is a hospitalist physician with 15+ years of clinical experience. He founded SickSlip to give patients fast, affordable access to legitimate medical documentation without unnecessary clinical barriers.