Dr Sarah Jarvis, MBE
Author: Dr Sarah Jarvis, MBE, General Practitioner (GP)

Dr Sarah Jarvis is the Clinical Director of the Patient Platform, an active medical writer, broadcaster, and the resident doctor for BBC Radio 2.

Originally posted: 3rd Apr 2024

In the last 20 years, the number of global flights has been increasing steadily, reaching 38.9 million in 2019, with 4.4 billion people taking air trips in 2018. In 2020, courtesy of the COVID-19 pandemic, the number of flights dropped to 16.4 million.

But by 2022, despite the war in Ukraine and the Omicron variant of COVID-19, travel had bounced back – in Europe alone, 2 billion passengers took 9.3 million flights, back to 83% of pre-pandemic levels. By 2023 we were back to 94.1% of pre-pandemic flights – a 37% increase on 2022.

After almost three years of (sometimes complete) restrictions on flying, millions of Brits have shown how much holidays abroad mean to them. But while pretty much all COVID-19 formal requirements are gone, that doesn’t mean all entry requirements for medical conditions have.

Just as before the pandemic, you may require a certificate from your doctor if you have certain medical conditions. So it’s well worth knowing the regulations for the country or countries you’re planning to visit before you book.

Do I need proof I'm fit to fly if I have a medical condition?

If you have a health condition, you’ll want to ensure that you’re fit to fly before travelling abroad.

While you might feel well enough within yourself to tackle the journey, it’s always worth checking in with your doctor or nurse so that they can get a better understanding of your condition before you commit to flying. 

However, beyond a routine chat with your doctor, you might find that there are circumstances where you might need an official fit-to-fly certificate.

Specialist Medical Cover

We only work with providers who specialise in covering pre-existing conditions.

Save Money

No discounts. No pressure. We’ll always show you the best prices from providers.

General restrictions on flying

There are certain long-term medical conditions that can flare up from time to time. As well as making you feel generally unwell, a flare-up of some conditions (including asthmaCOPDCrohn’s disease and ulcerative colitis) can make travelling riskier.

There are other medical conditions where the severity of symptoms varies widely. For instance, many people with Parkinson’s disease have only mild issues with mobility; and many people with multiple sclerosis feel entirely well between attacks. But others may need major modifications to their travel plans or have very limited mobility.

So if you have a long-term medical condition, you should always check with your travel agent or airline whether you’ll need a fit-to-fly certificate or medical letter confirming you’re currently fit to fly.

Time-limited restrictions on flying

There are certain situations where flying on passenger planes is not allowed. However, in most circumstances, these restrictions are:

  • Time-limited (e.g. after stroke, heart attack, or surgery); or
  • Depending on the severity of your symptoms (for instance, you can usually fly if you have angina, but not if you’re getting symptoms at rest).

You can find out more details in our article on Flying with Medical Conditions.

Medical Travel Compared Waiting To Board

When do you need a fit-to-fly certificate?

A fit to fly certificate is needed to be granted medical clearance by your airline. 

If your condition is stable, it’s very unlikely that you will be asked for medical clearance - but a fit-to-fly certificate may still be required if: 

  • You’ve recently been discharged from the hospital
  • You’re in recovery from an operation
  • You’re more than 28 weeks pregnant
  • You’re actually travelling for medical reasons (i.e. you’re going for some treatment)

Of course, whether you need a fit to fly certificate is at the discretion of your chosen airline, so you should always carefully check their individual guidelines to find out their specific requirements. 

Scenario Flight Restrictions
Flying when pregnant Flying when pregnant Most airlines require a fit to fly certificate after 28 weeks. Most airlines do not allow air travel after 36 weeks (or 32 weeks for multiple pregnancies and some long haul trips).
Flying while recovering from surgery Varies based on severity of the surgery. Contact your airline and your GP about establishing whether you’re fit to fly.
Flying with a heart condition According to the British Cardiovascular Society guidelines, most people with a heart condition can fly safely, but this varies based on severity of condition. Contact your airline and your GP or specialist about establishing whether you’re fit to fly.
Flying with angina Provided symptoms are under control by medication, angina should not be a problem on board an aircraft. However, if you get chest pain while at rest (so-called unstable angina), you may not be able to fly. Contact your airline and your GP about establishing whether you’re fit to fly.
Flying after a heart attack You may be able to travel after 7 to 10 days, provided there are no complications. Always check with your specialist before booking a flight.
Flying after heart failure Flying after heart failure Provided symptoms are under control, heart failure should not be a problem in flight. However, if you have chest pain while at rest you may not be able to fly. Contact your airline and your GP about establishing whether you’re fit to fly.
Flying with a pacemaker Should not cause problems for travelling by air. However, pacemakers can sometimes set off airport security alarms so be prepared with a letter from your doctor.
Flying after heart surgery Advisable not to fly for at least 10-14 days after bypass grafting or other heart or chest surgery and until you are able to manage normal day-to-day activities. However, if you've had an angioplasty (or other procedure which doesn't involve open surgery) you may be fit to fly from 3 days after the procedure, as long as your specialist gives the okay.
Flying with high blood pressure Flying with high blood pressure High blood pressure should not be affected by air travel, but it is advisable to only travel when your blood pressure is controlled. Find out more from our article on travelling with high blood pressure.
Flying with asthma Those with asthma should not have issues with flying, though it is advisable to always carry any medication such as an inhaler in your hand luggage. You can find out more about travelling with asthma from our article.
Flying with a broken bone Because of the risk of swelling inside a cast, many airlines choose to restrict flying during the first 24-48 hours after a cast has been fitted. If you do decide to travel before that time period has elapsed you can expect the airline to require your cast to be split along the full length to prevent any pressure build-up impacting your circulation. Having a letter containing the date & time the cast was fitted will be helpful.
Flying with diabetes Air travel should not pose significant problems for travellers with well-controlled diabetes. However, it's important to check in advance what other precautions you need to take.
Flying with a disability Most people with mobility problems have found it possible to travel by air, especially with legislation which was passed in 2008. If there are other medical issues you should check with your GP that these are taken into account.

Travelling with medicines or medical equipment

Travelling with medication

You’ll often need a letter from your doctor if you need to take medication abroad. In addition, some countries have restrictions on certain medicines (and even ban certain medicines, including some available in the UK without prescription, such as codeine-containing medicines).

You can find out exactly what you need to do to avoid any issues with your medication from our article on taking medication abroad.

Travelling with oxygen

One of the major issues in relation to fitness to fly is the fact that oxygen pressure in a plane is lower than on the ground. That means conditions affecting your heart and lungs, which can reduce your body's ability to carry oxygen around your body, can lead to new or worsening symptoms during flight.

In some situations, you may be able to fly if you have access to oxygen onto the plane – speak to your doctor about arranging this if needed. You will definitely need a letter from your doctor detailing:

  • All your medical conditions.
  • Why you need to travel with oxygen.
  • That your condition is stable and that you are fit to fly with oxygen.

Remember that all airlines have different rules about travelling on a plane with oxygen: some supply it on board for free, while others charge for it. You’ll need to contact your airline well in advance to make arrangements. You’ll also need to make arrangements to access oxygen at your destination. You can find out more details in our travel guide.

Flying with a pacemaker or implantable defibrillator (ICD)

Having a pacemaker shouldn’t cause problems for travelling by air, but you will need your device identification card. It’s a sensible precaution to get a doctor’s letter, too.

Recent research suggests it’s usually safe to go through airport scanners with a pacemaker or ICD. But you can ask for a hand-held metal detector check instead – see our guide to travelling with a heart condition for more details.

Travelling with a plaster cast

Because of the risk of swelling inside a cast, many airlines choose to restrict flying during the first 24-48 hours after a cast has been fitted. If you do decide to travel before that period has elapsed you can expect the airline to require your cast to be split along the full length. This will prevent any pressure build-up from impacting your circulation. Having a letter containing the date & time the cast was fitted will be helpful.

Rated Excellent

Trusted by thousands of people like you who've reviewed us on Trustpilot.

Save Time

No phone calls or paperwork. Join millions who've sorted cover online in minutes.

How much does it cost to get a fit-to-fly certificate?

This depends on how much your GP surgery charges - but typically this cost ranges from £20-£40. 

You can find a list of suggested fees from The British Medical Association if you want a more comprehensive idea of the different costs and fees you might expect.

When will my fit-to-fly certificate expire?

Again, there is no clear-cut answer to this. But at the very least, your certificate should indicate that you’re fit to fly at the exact time of your trip. 

So, if you have a letter from months ago, the likelihood is that this won’t be suitable for your airline today. 

If you have a recurring, or more permanent medical issue, you should probably speak to your doctor or specialist nurse about getting a fit-to-fly certificate every time you travel - just to be on the safe side.

Get a quote

Single Trip insurance is for one-off, individual trips and will cover your specified travel dates. This is usually up to 45 days; however, some insurance providers can cover up to 94 days. If you’re not a frequent traveller, single trip cover is a great option and will likely be cheaper than an annual multi-trip cover.

If you travel 2 or more times a year, annual trip cover may very well save you money. The maximum duration of any trip will always be specified and will vary by provider. But don't worry, when you get a quote, we'll ask you what your maximum trip length is and only show you quotes that match!

A pre-existing is any medical condition for which medical advice, diagnosis, care, or treatment was recommended or received before applying for a travel insurance policy. For some conditions, we'll need to know if they have ever been present, whilst for others if they occurred within a certain period.

A pre-existing condition is a diagnosed medical condition that existed before taking out a policy. We'll ask a series of questions about the medical history for you and any travellers on your quote. If you answer yes to any of these, you will need to tell us about the traveller's conditions. This could be a condition that a traveller has now or has had in the past. If you are not sure what conditions you need to declare, we have online support available to help you 24/7!

This refers to a series of questions you’ll be asked once you declare your pre-existing medical conditions. This helps us form a better understanding of your medical history, so we can provide you with the most relevant quotes.
Share and share alike Share the love with friends.