Frozen embryos can be moved from the UK or Europe to a Turkish clinic, and the route is one of the more direct ones we run. Material travels at −196°C in the aircraft cabin, in a dry shipper that holds temperature for up to 21 days, so a missed connection does not put anything at risk. The timeline is set by the two clinics agreeing in writing and the sending clinic completing its own authorisation, not by how long the flight takes.
This guide is informational and educational only, and is not legal or medical advice. Requirements change and clinic policies differ, so confirm the details for your own transfer with your clinic and the receiving clinic in Turkey.
The Turkey Route
Turkey is a frequent destination for fertility treatment, and moving embryos there from the UK or Europe follows a clear, well-practised path. The documentation takes the planning; the transport runs to routine. Here is what to expect at each stage.
The Documents You Need
The sending clinic applies for an export licence naming the courier. The receiving clinic in Turkey provides an agreement confirming it will accept the material. No X-ray letters are prepared for both airports so the tank is inspected by hand, and a customs release letter is arranged so the tank can be cleared on arrival. Where the route includes a stopover, each transit point is addressed in the paperwork. We coordinate the whole pack with both clinics.
Before your UK or European clinic can apply for the export licence, they need to check your original storage consent forms. If those consents are out of date, missing a signature, or incomplete, the clinic is legally required to refuse to release the material. It's worth asking your clinic to verify your consents before the export process is launched, so this doesn't become the thing that holds up your timeline.
The cryogenic tank always travels as cabin baggage with the courier. It is never checked in or sent as cargo, which keeps it under the courier's eye and off the hold's X-ray screening throughout.
What Happens If the Tank Is Checked at Security
The no X-ray letters mean the tank is never scanned, at either airport. A security officer checks it by hand instead, against the documentation that names it. The tank is sealed at the sending clinic before the courier leaves, and that seal is tamper-evident, so anyone checking it along the way can see immediately whether it has been touched.
The seal stays in place until the receiving clinic in Turkey takes delivery, where the embryologist checks it against the paperwork before opening the tank. That chain of custody, not just the courier's word, is what confirms nothing has changed along the way.
The Journey Itself
A qualified courier collects your embryos in a cryogenic tank holding minus 196 degrees, with the embryologist verifying them against your records before loading. The courier carries the tank in the cabin, on routes commonly served by Turkish Airlines among others. On arrival, the receiving clinic clears the tank using the customs documentation, and the embryologist verifies the embryos and vessel before storage. You are kept updated throughout.
What Happens If There's a Delay or a Missed Connection
This route has an advantage many others don't: London to Istanbul is a direct flight of around four hours. The tank's validated hold time is up to 21 days, so even a significant delay leaves a wide margin untouched. If your journey does include a connection, the same margin applies — a missed connection adds hours, not days.
What matters is temperature, not time by itself. Above roughly minus 130 degrees, the glass transition point of the cryoprotected embryos, ice can begin to form inside the cells. A sealed, upright tank stays well clear of that within its hold time. If a flight is disrupted, the courier is rebooked onto the next available option, and the tank stays sealed throughout.
How Long It Takes
Plan for several weeks. The flight is short, but the export licence and destination paperwork take time to put in place. Starting early, before your treatment dates are set, lets the documentation be done without pressure.
What to Know Before You Start
According to general regulatory frameworks, the destination may have its own import requirements, so it is strongly recommended to confirm these with the receiving clinic in Turkey. Make sure your storage consent is current before you begin, as that has to be in order for embryos to be released. And contact us early, so the documentation and the travel can be arranged together.
Frequently Asked Questions
Can frozen embryos be transported to Turkey from the UK or Europe?
Yes, with the right documentation: an export licence naming the courier, an import agreement, customs release for the destination airport, and airline approval for the tank as cabin baggage.
Which airlines are used for transfers to Turkey?
Commonly Turkish Airlines, among others, depending on the connection. Approval to carry the tank in the cabin is obtained directly from the carrier ahead of travel.
Will the embryos be safe on the journey?
Yes. They travel in a cryogenic tank holding minus 196 degrees for far longer than the journey, carried in the cabin by a qualified courier who stays with it the entire way. The receiving clinic verifies them on arrival.
How long should I allow?
Several weeks. The transport is quick, but the export and destination documentation set the timeline. Begin before your treatment dates are fixed.
What happens if the tank is checked at security or customs?
It's inspected by hand, not scanned. The seal placed at the sending clinic stays intact and is only broken by the receiving clinic's embryologist once it arrives in Turkey.
What if my courier misses a connecting flight?
The tank's validated hold time is up to 21 days, well beyond the extra hours a missed connection adds. The courier is rebooked onto the next available flight and the tank stays sealed and upright.
Do all transfers to Turkey connect through Istanbul?
Not necessarily. Turkish Airlines' direct London-Istanbul service is common, but the exact routing depends on where you're travelling from and which clinic you've chosen. We confirm the specific flight and airline approval once your booking is set.
Embryo Links handles the export licence, customs release and airline approval for transfers to Turkey, with a qualified courier carrying the tank in the cabin throughout. Talk to us about your route.
Last reviewed: 15 September 2026.