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  • Monday - Friday
    9:00 AM - 6:00 PM
  • Saturday - Sunday
    10:00 AM - 2:00 PM
  • Suite C, 117a Harley St, Marylebone, London W1G 6AT, UK
  • Monday - Friday
    9:00 AM - 6:00 PM
  • Saturday - Sunday
    10:00 AM - 2:00 PM
Covid-19 Corona Virus Antigen Swab Test Covid-19 Corona Virus Antigen Swab Test

Why choose STI Clinic London?

  • One flat fee, no obscene charges to expedite results
  • Results for almost all tests conducted in 2021 have returned under 36 hours, attend before 11 am for same-day results
  • Completely free to book, pay only when you attend the clinic
  • Extremely experienced, trained staff take your sample in our purpose-built private Harley Street medical clinic
  • Definitive results, we have never had an inconclusive test result
  • Free telephone call and advice from our GP in the event of a positive result

RT PCR test for Travel

Fit to Fly PCR Test

  • PCR Swab for SARS-CoV-2

From £199

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COVID-19 PCR Swab Testing in London

In-Clinic Test

for Travel Purposes Only - £199

You MUST NOT select this service and attend the clinic if you suspect a current coronavirus infection, or if you have any symptoms of an infection.

We are also happy to provide patients in London with an in clinic service for those needing negative coronavirus swab test results in order to travel internationally.

  • Patients should contact the clinic to arrange an appointment to attend the clinic and have our nursing team take their sample.
  • As we need to ensure social distancing, there might be a small ( up-to 10 min ) delay in seeing you to maintain social distancing.

The results are delivered via email within 48 hours guaranteed, but in most cases it's between 24 to 36 hours, and results are stamped by the clinic and signed by our doctor along with your signed certificates if you have selected it. Hard copies are available to collect from the clinic.

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Frequently Asked Questions

When you attend the clinic, one of our staff will accompany you at the room before taking a swab from the back of your throat and nose. We will never ask you to take the sample yourself, unless the test is performed for an infant under 2 years old, in which case the parent of the child should take the swab. Our staff will be there to assist you, if needed.

Don't worry, with STI Clinic London you can book in confidence. We will never book a patient in for their swab, knowing that they won't receive their results in time for a flight. Many of our patients have come to the clinic after being let down by other providers, our priority is to ensure that every patient we see at the clinic gets their results and certificate on time for their flights.

We will ask you when you book and confirm when you attend the clinic; when you are flying and when you need to receive your results. Based on this information, we will book your appointment based around our turnaround time, and your requirements. Patients booking their appointments online MUST check and make sure that their chosen time fits with requirements, as obviously, we cannot check with each and every one of you.
For every patient that we have guaranteed results, they have successfully boarded their flight.

Yes, please make one booking per household.

Yes, bring the certificate along with you, we charge £50 to certify results, in any format.

Yes, let us know you want to pick them up when you come in for your swab, we'll still email you your results, and once you've received this email, you'll know there ready to pick up.

COVID RT PCR Test: A molecular test is the test used to confirm the presence of the SARS-nCOV-2 virus. Polymerase chain reaction (PCR) is the molecular test that is required for travel. Samples will be collected from the nose and the back of the throat before being sent for analysis. The molecular test will look to detect fragments of virus from the sample. The mechanism works by increasing the genetic viral material present to levels where they can be detected. The molecular test will confirm active infection and will be accurate within a few days of exposure - typically at the time that the infected person starts to suffer symptoms.

Use our online booking page.  If you are not able to access the internet, register by telephone on our helpline - 020 7183 0649.

If you are living in close to Harley Street area, visit STI clinic for Covid-19 testing. At our clinic we see patients in and around London and the wider community who need RNA testing by PCR for COVID-19. Results are available from 24 to 48 hours later.

You can take a test visiting at our clinic in Harley Street, London. Find our address on the website and make your booking, following which we will send you directions by email.

We always aim to return test results as soon as we can and that will usually be within 24 to 48 hours from the time your swab was taken. Out of an abundance of caution we guarantee 48 hours for the results but within 24 hours is more typical with over 95% of patients results returning within 36 hours.

The test is done by taking a swab from your nose and your throat. You might experience a little mild discomfort and might feel you need to gag with the throat swab but there should be no pain, and don’t be embarrassed, we’re used to it.

The antibody test is different from the virus swab test, which is a test to check the presence of the virus. An antibody does not detect current infection with the virus.

If you suspect that you have coronavirus, you must not attend a clinic to be tested, please use the free NHS postal testing service. If anyone you know tells you that they have tested positive for COVID-19, they should be staying at home and self-isolating along with anyone else that you live with.

You will pay £199 for a Covid-19 PCR test. An additional signed doctor's fit-to-fly certificate/letter can be provided for an additional £50. This is needed if any of your requirements mention a passport number. Please don’t try and save yourself £50 and end up ruining your holiday, we can add this service onto your booking, however if you have already attended for a test, and only realise at border patrol a certificate is required, you may miss your flight as we cannot issue certificates every minute of the day.

If you have been traveling you might well have been exposed to COVID-19. However, even if you were, you might not have any symptoms, and may fell quite well. You should realise however, that you can be contagious without having any symptoms and you could spread the virus to others. You and anyone who has been with you on your travels can pose a risk to others.

There are some things that you must do when you travel.  If there is no travel corridor between the country you are arriving from and the UK you will have to self-isolate for 14 days or follow whatever the latest UK government advise is.  Also:

  • Around others, stay 2 metres (approx. two arm’s length) from people are not in the same household. Do this everywhere, indoors and out.
  • Always wear a face covering when you are not at home and are out shopping or moving around in places where there are other people.
  • Use hand sanitizer (at an alcohol strength of at least 60%) and wash your hands often
  • Look out for any symptoms of COVID 19 and check your temperature if you are feeling unwell.

Know what the requirements are for self-isolation when you return from traveling and make sure you follow them.

Book a Private Covid-19 ( Coronavirus ) Test Near You


STI Clinic London is a fully functional medical clinic, registered with the Care Quality Commission employing GMC registered doctors.

We have been on our premises at 117a Harley Street for over 30 years and are using our laboratory, which is within walking distance of our clinic, throughout this entire period for our routine blood and urine testing. From our experience across this time frame, we can say with almost absolute certainty that our Covid-19 (coronavirus) testing offers the most reliable testing in London.

We have been delivering COVID-19 fit-to-fly testing since they have become a widespread requirement to travel. In this roughly 6 month timescale, as we have watched other testing services deteriorate, every single patient for which we have guaranteed their turnaround time has successfully boarded their flight.

As just a part of our full clinical practice, the priority at STI Clinic London has always been ensuring our patients can depend on the PCR testing for travel service. Please review our Google and Trustpilot pages, and compare the feedback across the last 6 months to other testing services, many of which are unregistered and unregulated.

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