Clinically reviewed by Dr. Ponlawat Pitsuwan, Physician, Takecare Clinic Phuket. Last reviewed: September 2026
A fit-to-fly certificate is a signed letter from a licensed physician confirming you are safe to board a flight. Airlines flying out of Phuket International Airport typically require one after a hospital stay, recent surgery, significant injury, or from pregnant passengers beyond a certain stage. At Takecare Clinic Phuket, a walk-in clinic in Patong, the certificate is usually issued the same day, often within an hour of seeing the doctor.
You came to Phuket for a week. On day three, a scooter came off the hill road above Patong, you spent two nights in hospital, and now you are sitting with a discharge letter and a flight home in 36 hours. That situation lands in front of me more often than most people expect. The certificate itself is not complicated to get. But you need to know what to bring, which airlines actually require it, and how long you have before it expires.
The same applies if you are pregnant and approaching your third trimester, if a reef cut at Kata needed stitches, or if a bad bout of food poisoning put you on an IV drip for a day. Airlines differ in exactly what they ask for and when. This article covers the real requirements, what the exam involves, and how to get your fit-to-fly certificate in Phuket before your flight.
Which Airlines Require a Fit-to-Fly Certificate from Phuket Airport
Not every airline has the same rules, and very few local pages actually spell this out. Here is what the major carriers flying out of Phuket International Airport typically require.
| Airline | Condition | Certificate Required From |
|---|---|---|
| Thai Airways | Pregnancy | 28 weeks (single), 32 weeks (twin). MEDIF form may be required from 36 weeks |
| Thai Airways | Post-hospitalisation or surgery | Any recent admission — MEDIF form typically required |
| Bangkok Airways | Pregnancy | 28 weeks onward, physician letter required |
| Bangkok Airways | Recent illness or injury | At captain’s discretion; certificate strongly advised after any hospital stay |
| AirAsia Thailand | Pregnancy | 28 weeks, physician letter required. Carriage refused after 36 weeks without approval |
| AirAsia Thailand | Post-hospitalisation | Physician clearance letter required |
| Scoot / Nok Air | Pregnancy | 28 weeks, signed physician letter required |
| Scoot / Nok Air | Post-surgery or serious illness | Physician clearance letter required |
Airline policies change. Always confirm directly with your carrier before your flight. What I can tell you from clinic experience is that a letter from a licensed physician, written in English and signed, is almost always accepted when the airline’s own form is unavailable.
Common Situations in Phuket That Trigger the Requirement
The patients I see asking for this certificate fall into a handful of clear patterns. Scooter accidents on Route 4028 and the hill roads around Patong are the most common trigger. A fracture, a deep gash, road rash that needed treatment, or a concussion all count as significant recent injuries in the eyes of most airlines.
Reef wounds are the second most common. A cut from the reef at Kata or Karon, or from a day trip to Phi Phi, can be deep enough to require stitches. If you have an open wound or fresh sutures, most airlines want confirmation that flying is safe, particularly given the risk of swelling at altitude.
Post-hospitalisation is the third pattern. A severe episode of food poisoning, a dengue fever admission, or a diving-related incident can keep someone in hospital for several days. After discharge, almost all airlines require medical clearance before you board. If you have been in a Phuket hospital, assume you need the certificate.
Pregnancy is the fourth. Past 28 weeks and flying home from Phuket, you almost certainly need a signed letter. Some carriers enforce it from 28 weeks; others from closer to 36. Do not guess. Get the letter and bring it.
What the Fit-to-Fly Medical Exam Actually Involves
The exam is a focused clinical assessment, not a full health screen. I review your current condition, your recent medical history, and any documents you have brought with you.
For an injury or post-hospitalisation case, I check wound status, whether swelling could worsen with cabin pressure changes, your clot risk from sitting immobile on a long flight, and whether your current medication is compatible with flying. For pregnancy, I check gestational age, blood pressure, any complications, and whether there are any signs of concern before travel. The whole assessment typically takes 15 to 30 minutes. The certificate is printed, signed, and ready before you leave.
How Long Is a Fit-to-Fly Certificate Valid
This is the question nobody seems to answer online, and it matters most when you have a specific departure time.
For pregnancy, Thai Airways and Bangkok Airways typically require the certificate to be dated within 7 days of travel. AirAsia and most budget carriers accept the same 7-day window. For post-hospitalisation or injury cases, validity is usually 7 to 10 days, though some carriers still reference older 72-hour windows. When in doubt, get the certificate as close to your departure as possible.
My practical advice: if your flight is tomorrow, come in today. If your flight is in five days, do not get the certificate today because it may expire before you board. Aim for one to two days before travel.
What to Bring to Your Appointment
Bring everything that documents your condition. Hospital discharge summary if you were admitted. Surgical notes if you had a procedure. Antenatal records showing gestational age and any scan results if you are pregnant.
Bring your flight booking confirmation and the airline name. If your airline has sent you a specific form, bring that too. Thai Airways uses a MEDIF form for complex cases, which is more detailed than a standard physician letter. I can complete both at the clinic. Also bring your travel insurance policy details. If the certificate is needed for an insurance claim, the insurer may have specific wording requirements I need to see before I write the letter.
What Happens If the Doctor Cannot Issue the Certificate
Sometimes I cannot certify a patient as fit to fly. That is not a failure. It is the honest clinical answer when flying would genuinely put someone at risk.
If I cannot issue a fit-to-fly letter, I can issue documentation confirming that a patient is unfit to travel on medical grounds. Travel insurers require this for flight cancellation claims and rebooking costs. Most policies cover the cost of a delayed return when there is a documented medical reason, but they need a signed physician statement to process the claim. Takecare Clinic Phuket handles this paperwork regularly, and we know what insurers typically need to see.
If you are in this situation, contact your airline and insurer the same day. The paperwork from the clinic is what makes everything else possible.
Getting Your Fit-to-Fly Certificate at Takecare Clinic Phuket
Takecare Clinic Phuket is a walk-in clinic in Patong, open with extended hours and no appointment needed. We issue fit-to-fly certificates and unfit-to-fly letters in English, signed by a licensed physician, usually within an hour of the consultation.
We see patients from across the island: Kata, Karon, Kamala, Rawai, Nai Harn, Chalong, and Phuket Town. If you are on the other side of the island and unsure whether you can make it in before your flight, call ahead or message on WhatsApp. We can advise on timing and what to bring so you do not waste a trip.
Unlike some hospital-based services in Phuket that require several days’ notice for medical certificate appointments, our walk-in model means you can come in the day before your flight and leave with everything you need. That matters when your trip has not gone to plan and you are working against a deadline.
Need a fit-to-fly certificate before your flight home from Phuket? Takecare Clinic Phuket is a walk-in clinic in Patong with no appointment needed. Our English-speaking physicians issue fit-to-fly and unfit-to-fly certificates the same day, including MEDIF form completion and travel insurance documentation. Come in directly or message us on WhatsApp to confirm what to bring. Visit our medical certificate page for details.
Frequently Asked Questions
Dr. Ponlawat Pitsuwan
Physician, Takecare Medical Clinic Phuket
a walk-in medical clinic in Patong with no appointment needed and English-speaking physician care for the whole island. He sees tourists, expats, and residents across Phuket for fit-to-fly assessments, travel medical certificates, post-injury clearance, and travel insurance documentation. His focus is straightforward, evidence-based care delivered in plain language.


