A fit to fly certificate is a doctor's confirmation that you are medically fit to travel by air on your travel dates. Airlines ask for one in late pregnancy, after recent surgery or a cardiac event, with a new plaster cast, when oxygen is needed in flight, or after a contagious illness. Issued online by an NMC-registered MBBS or MD doctor, delivered to WhatsApp and email within 30 minutes. From ₹699.
Medically reviewed by Dr. Srinivas Reddy, MBBS MD · NMC-registered · Updated August 2026
Why Airlines Ask For One
A cabin is pressurised to roughly 6,000 to 8,000 feet, not sea level. That means slightly less available oxygen and, more importantly for some conditions, trapped gas expanding by about 30 percent. Add a crew who cannot provide medical care beyond first aid, and a diversion that costs an airline lakhs, and the reason for the paperwork becomes clear.
The certificate is not the airline doubting you. It is the airline documenting that a doctor considered the specific risks of flight for your condition and cleared you. Turning up without one when the airline's policy requires it is the most common reason passengers are denied boarding for medical reasons in India.
Who Needs a Fit to Fly Certificate?
Pregnancy after 28 weeks
Most Indian carriers require a certificate from 28 weeks, and many decline travel after 36 weeks for a single pregnancy or 32 weeks for twins. The certificate must state the expected date of delivery.
Recent surgery
Abdominal, chest, eye and neurosurgery all carry waiting periods before flying because of cabin pressure changes. Clearance confirms enough time has passed.
Fracture in a full plaster cast
A cast applied within 24 to 48 hours of the flight usually needs either splitting or a doctor’s clearance, because trapped air expands at altitude.
Recent heart attack, stroke or cardiac procedure
Airlines apply defined waiting periods and ask for confirmation the patient is stable enough for the flight.
Respiratory conditions and oxygen use
Cabin air at altitude is equivalent to roughly 6,000 to 8,000 feet. Anyone needing in-flight oxygen requires prior medical clearance.
Recent contagious illness
Airlines can refuse boarding for an apparently infectious passenger. A certificate confirming you are no longer infectious resolves this at the gate.
Travelling with medication or devices
Injectables, controlled medicines, syringes, insulin pumps and mobility aids are easier to carry with a doctor’s letter.
Typical Airline Requirements
Policies differ between carriers and change without much notice. Treat the table below as orientation, then check your specific airline's medical policy page before you book, and again before you travel.
| Situation | When it applies | What is usually needed |
|---|---|---|
| Uncomplicated single pregnancy | 28–36 weeks | Certificate with expected date of delivery, usually dated within 7 days of travel |
| Twin or multiple pregnancy | 28–32 weeks | Certificate required; travel generally not accepted beyond 32 weeks |
| After abdominal surgery | Typically 10 days | Clearance confirming healing and stability |
| After a heart attack | Typically 2–3 weeks if uncomplicated | Cardiology-informed clearance confirming stability |
| Full plaster cast applied recently | Within 24–48 hours of flight | Cast split, or a doctor’s clearance to fly with it intact |
| Needing in-flight oxygen | Any flight | Advance medical clearance and airline approval, often via a MEDIF form |
Important: these windows are indicative, not a substitute for your airline's published policy or your treating doctor's advice. If you have had a serious cardiac event, major surgery, or need in-flight oxygen, speak to the airline's medical desk well before departure, because clearance can take days.
What the Certificate Must Contain
| Element | What it is |
|---|---|
| Passenger name, age and gender | Must match the passport or ID used for the booking, exactly. |
| Date of examination | Airlines usually require the certificate to be dated within 7 days of departure, some within 72 hours. |
| The medical condition | Stated clearly, along with current stability, and for pregnancy the expected date of delivery. |
| Fit to fly declaration | An explicit statement that the passenger is fit to travel by air on the stated dates. This is the operative line. |
| Flight details where required | Some carriers want the sector and date named on the certificate itself. |
| Special requirements | In-flight oxygen, wheelchair assistance, extra legroom, or permission to carry medication and syringes. |
| Doctor name, qualification, NMC number | Airline ground staff and medical desks verify the registration at nmc.org.in. |
| Signature and letterhead | Digitally signed certificates are valid under the IT Act 2000. |
The date matters more here than on almost any other certificate. Airlines want recency, so book the consultation for the week of travel rather than the month before.
When We Cannot Issue It
Being straight with you saves a wasted payment. An online consultation is appropriate where the question turns on your history and current stability. It is not appropriate where the airline needs examination findings, test results, or a specialist's opinion.
- Your airline has asked for its own MEDIF form completed by the treating doctor.
- You need in-flight oxygen, a stretcher or a medical escort, which require advance airline clearance.
- You are within the airline's post-event waiting period after a heart attack, stroke or major surgery, where a treating specialist must assess you.
- You are beyond 36 weeks pregnant, or beyond 32 weeks with twins, where most carriers decline travel regardless of any certificate.
- Your condition is unstable or undiagnosed, in which case you need to see a doctor in person, not fly.
In those cases your treating doctor or the airline medical desk is the right route, and no online certificate substitutes for it.
Fit to Fly or Unfit to Travel?
These are opposite documents and people sometimes order the wrong one. A fit to fly certificate clears you to travel and goes to the airline at check-in. An unfit to travel certificate states you cannot travel as booked, and supports a refund, insurance claim, rescheduled trip or a visa appointment you have to miss.
If your trip is off because you are unwell, the unfit to travel certificate is what you need. If your trip is on and the airline wants clearance, this is the page.
How to Get a Fit to Fly Certificate Online
- Go to apply and select the fit to fly certificate.
- Enter your name as it appears on your passport or ID, your travel dates, the airline, and your medical condition.
- Pay securely by UPI, card or net banking through Razorpay.
- An NMC-registered MBBS or MD doctor reviews your history and confirms fitness to fly, or tells you if your case needs a treating specialist instead.
- The certificate reaches your WhatsApp and email within 30 minutes, on letterhead with the NMC number and signature.
Pricing
| Option | Price | What you get |
|---|---|---|
| Digital Basic | ₹699 | Certificate on WhatsApp and email |
| Digital Premium | ₹899 | Certificate with specialised assessment |
| Handwritten | ₹1,399 | Original handwritten certificate posted to you |
Frequently Asked Questions
What is a fit to fly certificate?
A fit to fly certificate is a letter from a registered doctor confirming that a passenger is medically fit to travel by air on stated dates. Airlines ask for one when a visible or declared medical condition could deteriorate in flight, or could require assistance the crew cannot provide at 35,000 feet. Common triggers are late pregnancy, recent surgery, a new plaster cast, cardiac events, oxygen dependency and recent contagious illness.
When do airlines require a fit to fly certificate for pregnancy?
Most Indian carriers require a certificate from 28 weeks of pregnancy, and many will not carry a passenger beyond 36 weeks for an uncomplicated single pregnancy, or beyond 32 weeks for twins. The certificate normally must state the expected date of delivery, confirm the pregnancy is uncomplicated, and be dated within 7 days of travel. Rules differ between airlines, so always check the specific carrier’s policy before booking.
How soon before my flight should I get the certificate?
Get it as close to departure as the airline’s rule allows. Most carriers require the certificate to be dated within 7 days of the flight, and some within 72 hours. A certificate issued a month in advance will usually be rejected at check-in because it no longer reflects your current condition.
Can I get a fit to fly certificate online?
Yes, for the many cases that turn on a clinical history rather than a physical examination, such as confirming an uncomplicated pregnancy, stable recovery, or that a contagious illness has resolved. It is issued under the MoHFW Telemedicine Practice Guidelines 2020 by an NMC-registered MBBS or MD doctor. Where an airline requires its own MEDIF form completed by your treating specialist, or where the condition needs examination or test results, you will need your treating doctor to complete it instead.
Will the airline accept a certificate from an online doctor?
Airlines accept certificates from registered medical practitioners. What ground staff check is that the certificate names you, states clearly that you are fit to fly on the travel dates, is recent, and carries a doctor’s registration number and signature on letterhead. Since validity comes from the doctor’s registration rather than the consultation setting, a telemedicine certificate meeting those points is normally accepted.
What is a MEDIF form and is it the same thing?
MEDIF, or Medical Information Form, is an airline’s own form for passengers needing medical clearance, typically for oxygen, a stretcher, a medical escort or a serious condition. It is more detailed than a fit to fly letter and is usually completed by the treating doctor and submitted to the airline’s medical desk in advance. If your airline has asked for a MEDIF specifically, a general fit to fly certificate does not replace it.
What is the difference between a fit to fly and an unfit to travel certificate?
They are opposites. A fit to fly certificate clears you to travel, and you give it to the airline. An unfit to travel certificate states you cannot travel as planned, and you give it to an airline, insurer, employer or visa office to support a cancellation, refund or rescheduling claim.
How much does a fit to fly certificate cost?
From ₹699 for the digital certificate delivered on WhatsApp and email, ₹899 with a specialised assessment, and ₹1,399 for an original handwritten certificate sent by post.