Covid-19 PCR Fit to Fly Certificate & Test

Covid-19 PCR Fit to Fly Test

    • Quick results received within 8 – 36 hours (via SMS text message)
    • Instantly download your FREE fit to fly certificate
    • Order by 1pm for FREE next day delivery (Monday to Thursday)
    • Lowest price for any Fit to Fly Covid Test and Certificate
    • Saliva sample collected quickly and easily at home or business
    • Proven to be more accurate and less invasive than a deep nasal (nasopharyngeal) swab test
    • Easy for kids to use
    • You can do this coronavirus private test yourself – no need for medical staff
    • Privacy protected, all information given is confidential
    • Government Approved RT-PCR Covid Fit To Fly Test
    • A shelf life of 2 years, so you can buy a coronavirus test and use when you need to
    • Application: Qualitative PCR test for detection of SARS-CoV-2 N/E genes (CE IVD compliant)
    • Everything you need is included when you buy a coronavirus test kit with us

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£82.99 (ex VAT)


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Fully approved Coronavirus Saliva Test Kit

HX Store’s PCR Fit to Fly Test is one of the world’s first fully approved saliva tests for the identification of the SARS-CoV-2 virus.

It has been extensively validated by a UK based laboratory for the detection of Covid-19. Additionally, all tests are performed at the highest clinical standards in our certified UK laboratories.

Benefits of Our Coronavirus Test Kit

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    Do it yourself

    Simply provide a small sample of your saliva in the collection tube included in the kit. Saliva samples can be collected easily, at home or business. There is no need for a trained medical professional.

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    Accurate results

    Viral PCR tests, like our coronavirus test, have a high sensitivity and specificity. If you receive a positive result, we are extremely confident that you are carrying SARS-CoV-2 (COVID-19). Recent studies suggest that saliva testing is more sensitive, in comparison to deep nasal/throat (nasopharyngeal) swabs.1

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    Minimise risk

    Know if you have coronavirus and follow the rules for self isolation. Additionally, help identify asymptomatic individuals (those who carry the virus but have no symptoms) quickly and effectively. In return, reducing the risk of outbreaks in homes and businesses.

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    Best value

    Cost of materials has come down significantly in recent months and we are happy to pass on those cost savings to our customers. The Hydro-X Group has never and will never take commercial advantage in matters relating to health, safety and compliance.

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    More comfortable

    Avoid the discomfort of an invasive nasal (nasopharyngeal) swab test, which must be inserted deep into the nose and/or throat.

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    Quick results

    Once the lab receives and processes your saliva sample, we’ll get your results returned in less than 36 hours via SMS text message. Along with a downloadable report to evidence your results.

1.Wylie. A, et al. Saliva is more sensitive for SARS-CoV-2 detection in COVID-19 patients than nasopharyngeal swabs. medRxiv 2020.04.16.20067835 (2020)

What’s Included in the Kit?

  • Spital-capturing test tube
  • Neutralising liquid to make safe the sample for transport (included in the test tube)
  • Bio-hazzard transportation bag
  • Pre-paid returns box for Royal Mail
  • Clear instructions

How It Works

Order your coronavirus saliva test kit onlineBuy as many coronavirus test kits as required for business or private use. Orders received before 1pm will be dispatched on the same working day.

Our business hours are Monday to Friday. If you order before 1pm Friday you should receive your kit(s) on Monday. However, ordering after 1pm on Friday means you will receive your kit(s) on Tuesday.

Register coronavirus test barcodeOnce you’ve received your Covid-19 PCR kit(s), each individual must register their kit barcode on the online portal. Samples that are unregistered cannot be analysed. This allows us to anonymously track a saliva sample throughout the testing process, and then send each user their results privately. Please make a record the barcode and keep it safe.

Send coronavirus saliva sample Simply provide a small sample of saliva in the collection tube. Please wait at least 1 hour after drinking, eating, smoking, vaping, brushing your teeth, or using mouthwash. Once the saliva sample is collected in the tube, use the returns label provided. Post it in any Royal Mail post-box via our FREE Royal Mail Tracked 24hr service.

Send coronavirus saliva test sample to the laboratoryYour saliva sample will undergo coronavirus RT-PCR testing for viral RNA at our UK based laboratory. As a result, this will detect whether you are infected with Covid-19.

Receive your coronavirus saliva test kit resultsGet your results within 8 – 36 hours of your sample being received at the lab. Each individual will receive their results via SMS text message. If you requested a ‘fit-to-fly’ certificate at online registration, you will be able to download your certificate via a secure online portal, as you receive your coronavirus PCR text message results.

How Long Does It Take to Get the Test Results Back?

If you buy a Covid-19 PCR Fit to Fly Test Kit before 1pm, you will be automatically eligible for next working day delivery.

Our business hours are Monday to Friday. Therefore, if you order before 1pm Friday, you should receive your test kit(s) on Monday. However, ordering after 1pm on Friday means you will receive your kit(s) on Tuesday.

Though each kit is supplied with a pre-paid Royal Mail 24hr returns label, it is our STRONG recommendation that you take the test kit to the Post Office and arrange for a 10am next day delivery service to our laboratory. This ensures you get your test results back in time for your flight.

Once the sample is received at our lab, you can expect to receive your results within 8 to 36 hours, via SMS (text message).

Upon receiving your text message result, you will also be able to access a downloadable report as evidence for your airline. This can be used as a fit to fly certificate.


  • Monday 11am – test kits ordered via our website
  • Tuesday – test kits received by you before 4pm
  • Tuesday – you return test-kits to Post Office, using a 10am next-day service
  • Wednesday – Laboratory receives test kits before 10am
  • Wednesday – Thursday by 10pm – you receive your results via text, and your downloadable Covid-19 PCR Fit to Fly Certificate


We strongly recommend purchasing the Covid-19 PCR Fit to Fly Test kits early, to avoid potential postal delays during this time. Our test kits have a use by date of 2 years so buy now and use in time for your flight.

What Do the Coronavirus Test Results Show?

  • Positive – This result accurately shows that the saliva sample contains SARS-CoV-2 RNA. Even if you are not experiencing any COVID-19 symptoms, please take precaution for self isolation and follow the NHS Guidelines.
  • Negative – The saliva sample does not contain any detectable levels of SARS-CoV-2 RNA. Nonetheless, please be aware that you could have been previously infected by COVID-19. Additionally, you could still be infected at a future date, so continue to protect yourself and others.
  • Inconclusive – The saliva sample did not meet the requirements to successfully detect SARS-CoV-2 RNA. This should be treated clinically as Not Detected. However, this also means that there was partial detection of SARS-CoV-2, which means re-testing is recommended.
  • Failed – This result means it was not possible to accurately process your test in the laboratory. This is normally due to an incorrect saliva sample being provided (i.e. not providing enough spit, not mixing with the stabilizing fluid or eating/drinking before the test). We recommended taking another test as soon as possible.

This COVID-19 test detects whether or not you are currently carrying the SARS-CoV-2 virus. You may have heard this test also referred to as an antigen or PCR test. It detects the presence of genetic material, called RNA, which is specific to the SARS-CoV-2 virus. If you are currently infected with this, you will shed coronavirus particles containing viral RNA in your saliva. Therefore, test positive for COVID-19.

How Accurate Is the Saliva Test?

The saliva test has high sensitivity and accuracy to detecting the Covid-19 virus. Therefore, it is extremely unlikely to receive an inconclusive or failed result.

Our Coronavirus Test Kit is validated as having 100% sensitivity at viral loads of 750 copies/ml (or greater) in vitro limit of detection (LOD) testing. In other words, a positive result was correctly called 100% of the time when 750 copies of synthetic viral RNA per ml were spiked into a saliva sample (using ISO approved RNA control spike-in material).

Typical transmissible viral loads, which cause infection, are usually several fold higher. This includes viral loads between 10,000 and 100,000,000 copies/ml usually seen in saliva samples of patients who test positive for SARS-CoV-2.2-4 As a result, there is a very low likelihood of falsely receiving a negative test result, while carrying coronavirus.

2. To et al., Temporal profiles of viral load in posterior oropharyngeal saliva samples and serum antibody responses during infection by SARS-CoV-2: an observational cohort study, Lancet Infect Dis., 20(5): 565-574 (2020) 
3. Yoon et al., Clinical Significance of a High SARS-CoV-2 Viral Load in the Saliva, J Korean Med Sci., 25;35(20): e195 (2020)
4. Wyllie et al., Saliva is more sensitive for SARS-CoV-2 detection in COVID-19 patients than nasopharyngeal swabs. medRxiv 2020.04.16.20067835 (2020)

How Do You Protect Users’ Privacy?

When you buy a COVID-19 test with us, you can be assured user privacy is protected. With our experience in direct-to-consumer testing, HX Store take the user data privacy extremely seriously. We will never sell on your personal data.

We are fully compliant with the UK Data Protection Act (1998) and EU General Data Protection Regulation (GDPR) legislation. Furthermore, our databases are all encrypted with (AES-256) and strict white list access only. Additionally, user personal details are password protected and stored on secure servers.

UPDATE: UK Government Regulations now state that all private COVID-19 test providers are mandated by law to report test results to Public Health England. This includes personal data on the person being tested, to enable individuals who test positive to be effectively transferred into the National Test and Trace system.

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Frequently Asked Questions


Whilst our lab works through the weekend processing samples, our courier (Royal Mail) unfortunately doesn’t. Therefore, no deliveries will be received at the lab on Sundays. As a result, samples that do not arrive by Saturday will not be received and booked in until Monday. If your flight is on a Tuesday or Wednesday, you may need to consider an alternative test provider who collect and deliver over the weekend. While all our samples are returned via a tracked 24 service free of charge, we advise that where the results are time sensitive, such as for fit to fly purposes, customers arrange a next day guaranteed delivery option such as Royal Mail Special Delivery or courier service for our Coronavirus Test Kit.
You can view and download a copy of your Covid-19 'Fit to Fly' certificate via our secure online portal (full details provided within the Coronavirus Test Kit). Your certificate will be available from the moment your test result is received. To access your certificate you will need to login using the last 4 digits from your sample barcode and a secure passcode provided. Your data is securely protected.
Yes - our kit requires no special storage conditions and can be kept at home at room temperature. Therefore, you’ll be fully prepared for your next trip or should you require a quick test result. The Coronavirus Test Kit has a shelf life of 2 years.
Unfortunately this saliva based Coronavirus PCR Test Kit. Therefore, it is not currently approved for the above UK Government schemes. However, the approval process is currently underway.
To view and download your Covid-19 'Fit to Fly' certificate, you will need to create an account with the lab's secure portal. All instructions on how to do so are included in the Covid-19 Test Kit. Additionally, your certificate will be available from the moment you receive your result. The downloadable report is included in the Coronavirus Test Kit. This can be used as a a Fit to Fly Certificate. However, please check with your airline and travel destination for travel requirements during these time. All data is securely protected. For more information on Fit to Fly Covid-19 tests and certificates, please visit: > Fit to Fly COVID-19 Tests: Everything you need to know
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