Travelling to Greece with a Cat from the UK (2026): The Exact Sequence — and the Return Leg Most People Don't Plan For

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Travel with Cats covers UK cat travel policies and EU documentation requirements from primary sources — airline websites, APHA guidance, and GOV.UK. Every policy claim in this article was verified in June 2026; re-verify before your trip, because regulations and airline policies change.

What your cat needs to enter Greece from the UK

Greece is a full EU member state, which means the same three-document framework applies here as for France, Italy, Portugal, and the Netherlands. If you've already taken your cat to another EU country since 2021, the core requirements will be familiar. If this is your first EU trip post-Brexit, the changes may surprise you — particularly around pet passports.

Your cat needs three things to enter Greece legally:

1. An ISO 11784/11785-compliant microchip — identified before or at the same time as the rabies vaccination

The microchip must be ISO 11784/11785 compliant (sometimes called a "15-digit" chip, though the ISO standard is the technically correct term). Identification must occur before or at the same appointment as the rabies vaccination is administered, with identification confirmed first. If vaccination demonstrably predated identification, that vaccination does not count for EU entry purposes and revaccination is required — the sequence matters.

A tattoo is accepted as an alternative identifier for clearly legible tattoos applied on or before 3 July 2011. For all other cats, a functioning ISO-compliant microchip is non-negotiable.

If your cat has a non-ISO chip, GOV.UK notes that you may be required to provide your own compatible reader and should confirm this with your travel company and destination authority before travel. The safest route is an ISO-compliant chip.

2. A valid rabies vaccination

Your cat's rabies vaccination must be current (within the vaccine's stated validity period) and must have been administered after the microchip was implanted.

The 21-day rule applies: the vaccination is not valid for EU entry until 21 days have passed. Crucially, those 21 days begin the day after vaccination — not on the vaccination date itself. Some vaccines have a 'valid from' date on the record that may be set one day later; the controlling date is the 'valid from' entry, not the date of the injection.

If your cat's rabies vaccination has lapsed and you need a new one, build the 21-day wait into your travel timeline.

3. An Animal Health Certificate (AHC) issued within 10 days of first EU entry

The AHC is the post-Brexit replacement for the EU pet passport. It must be issued by an Official Veterinarian (OV) — a government-authorised vet, not your standard practice vet. Not all vets are OVs; use APHA's OV finder to find one near you.

The 10-day window: The AHC is valid for EU entry only if it was issued within 10 days of your first EU border crossing. Count that crossing date as Day 10 — so the earliest valid issue date is 9 calendar days before your EU entry date. An AHC issued on 1 June is valid for entry up to and including 10 June.

OV booking tip: You can book the OV appointment slot months in advance — but the certifying visit and AHC issuance itself must take place within the 10-day window. In practice: book the appointment slot early (OVs fill up), set the actual appointment date to fall within 10 days of your EU entry date, and take your cat to that appointment. The OV will examine your cat and issue the certificate at that visit.

After EU entry: Once you've crossed into the EU, the AHC is valid for 6 months of travel between EU member states. (Verified via Chrome against GOV.UK, June 2026.)

A note on EU pet passports: GB-issued EU pet passports cannot be used for EU entry. Since 22 April 2026, GOV.UK advises Great Britain residents not to rely on an EU-issued pet passport for travel from Great Britain into the EU — passports issued to GB residents before that date may no longer be accepted, and acceptance can depend on the destination. GOV.UK recommends obtaining an AHC to avoid refusal or delay. An AHC is the document that guarantees smooth travel.

On the return to the UK: The AHC issued for your outbound trip can also be used as an accepted return document for re-entry into Great Britain for up to six months, provided the rabies vaccination remains valid. A qualifying EU-issued pet passport is also accepted for return to Great Britain from the EU. The return documentation requirements are covered in full in the "Returning to the UK from Greece" section below.

No quarantine applies to cats entering Greece if all three requirements are met.

The single most important action you can take now is to book your OV appointment. APHA's OV finder lets you search by postcode — the appointment can be booked as soon as you have a rough travel date in mind. Once it's in the diary, your timeline locks in.

The documentation sequence — what to do and when

The AHC process sounds complicated on paper, but the sequencing is straightforward once you understand what has to happen in order. Here's the complete timeline:

1. Check your cat's microchip and vaccination status

Before booking anything, confirm: is your cat's microchip ISO-compliant, and was it implanted before the current rabies vaccination? If not, you may need a new vaccination sequence — which means building a 21-day window into your timeline.

2. Book the OV appointment slot

Use APHA's OV finder to find an authorised vet. Book well in advance — OVs can be in short supply, especially in rural areas and around school holidays. The appointment slot can be booked months ahead, but the actual certifying visit (when your cat is examined and the AHC is issued) must take place within the 10-day window before your first EU entry.

3. Issue the AHC within 10 days of travel

Within 10 days of your first EU entry (counting the entry date as Day 10), your OV issues the AHC. They check your cat's microchip, vaccination record, and health status. The certificate costs between £100 and £250 depending on the vet practice.

4. The AHC is valid for one trip

The AHC covers one outbound trip to the EU only. If you're travelling to Greece for two weeks and returning home, you'll need a new AHC for any subsequent trip. Each return trip to Greece requires a fresh certificate.

If you're travelling via another EU country first: The 10-day window applies to your first EU border crossing — not to Greece specifically. If you're flying London → Paris → Athens, the AHC must be valid from the Paris landing. The Greek authorities check entry date against issue date; factor any connection time into your planning.

Owner's declaration: If your cat is travelling with someone other than its registered owner (a partner, family member, or carer), that person needs written authorisation from the owner, and the owner's own travel must begin within five days of the cat's departure. This requirement catches people out on joint-travelling holidays where one person is listed as the cat's official owner and the other is the one actually flying with the pet.

AHC cost: Typical range is £100–£250, depending on the practice and whether they charge a separate OV administration fee.

Once the AHC is issued, keep the original with you throughout travel — not in checked luggage, in your hand baggage. The border vet at your entry point will check it on arrival.

The AHC also covers your return: The same AHC can be used as an accepted return document when re-entering Great Britain, for up to six months from the date of issue — provided the rabies vaccination remains valid throughout. There is no need to obtain a separate document for the return journey if you are returning within that window.

For a broader look on the planning risks that paperwork alone can't fix — including what to do if your OV appointment falls through, how to handle connection delays, and how airlines handle documentation refusals — see our UK to EU cat travel planning guide.

Flying from the UK to Greece with your cat

This is where Greece differs from France, Italy, or Portugal. The most popular budget UK airlines don't serve cat travellers at all — and the airline situation for Greece requires more careful planning than most EU destinations.

Airlines that do NOT allow cats in the passenger cabin on UK → Greece routes:

• easyJet: no cabin pets (assistance animals only)
• Ryanair: no cabin pets (qualifying guide or assistance dogs only on certain routes)
• Jet2: no cabin pets
• TUI: does not allow cats in the passenger cabin (pet transport as cargo only)

If your mental model of flying to Greece involves a budget airline from a regional UK airport, this is the moment to revise the plan.

Aegean Airlines — the direct option

Aegean Airlines pet policy verified via Chrome from en.aegeanair.com, June 2026.

Aegean Airlines is Greece's national carrier and operates London Heathrow → Athens (and seasonal routes). They allow cats in cabin on flights departing the UK, subject to the following:

• Route: London Heathrow (LHR) → Athens (ATH) ✅ cabin allowed
• London Gatwick (LGW): cargo only — cabin travel not permitted from Gatwick
• Weight limit: 8 kg combined (cat + carrier)
• Carrier size: Maximum 55 × 40 × 23 cm
• Fee: €65 for international routes
• Booking: Register your cat when booking — spaces are limited per flight

Aegean's carrier size allowance is larger than many European airlines, which is useful if you have a bigger cat or a bulkier carrier. At 55 × 40 × 23 cm, most standard airline-approved soft carriers fit comfortably.

If you want to travel to Greece with your cat in the cabin, Aegean from Heathrow is the most direct route.

Hub carrier alternatives

If you're not based in or near London, or if Aegean's schedule doesn't work, you can fly via a European hub. KLM (via Amsterdam), Air France (via Paris CDG), and Lufthansa (via Frankfurt) all allow cats in cabin on the UK-departing leg and the Athens leg. Note that KLM's carrier size limit is 46 × 28 × 24 cm, and Air France's is 46 × 28 × 24 cm — both are significantly smaller than Aegean's 55 × 40 × 23 cm, so check your carrier dimensions before switching airlines. For a full comparison of which European airlines allow cats in cabin — including size limits, booking procedures, and how each handles the UK route — see our European airlines guide.

Before committing to a carrier for a multi-leg trip, check which carriers have been tested against major European airline size limits — the dimensions vary significantly between Aegean (55 × 40 × 23 cm) and KLM (46 × 28 × 24 cm), and you need one that passes both.

The outbound leg from the UK to Greece is the easier half of the journey. Book this first, then plan the return.

The return journey — where most people get stuck

This is the section that no other guide covers. Most articles about taking a cat to Greece focus on the outbound requirements and stop there. The return trip is more constrained.

Aegean's inbound-to-UK restriction

Aegean Airlines carries pets from Athens to the UK as cargo only. This is the same type of inbound-to-UK embargo that KLM operates on its Amsterdam→UK routes — the restriction applies in the direction of UK arrival, not departure. If you flew to Athens on Aegean in the cabin, your cat cannot fly back on Aegean in the cabin.

The practical effect: if you book Aegean for the outbound, you need a different plan for the return.

The honest picture on cabin return

Aegean, KLM, and Air France all have inbound-to-UK restrictions — pets cannot travel in the cabin on flights arriving into Great Britain on any of these airlines. (Air France's position is covered in detail in our guide to flying Air France with your cat.) Lufthansa states it reserves the right to refuse bookings on UK/Ireland routes, but this discretionary wording does not override the UK's pet-entry route requirements. Pets arriving by scheduled airline into Great Britain must use approved manifest cargo arrangements, not passenger cabin travel. Calling Lufthansa does not turn a non-approved cabin arrival into an approved one.

The practical reality for a return from Greece by air is that cabin travel into the UK is not available under current UK pet-entry rules. Your cat will need to travel as manifest cargo.

Option 1: Manifest cargo on Aegean

Aegean accepts cats as manifest cargo on the Athens → London Heathrow route — this is separate from ordinary excess baggage and involves a different booking process through Aegean's cargo department, with different pricing and handling arrangements. An IATA-compliant hard crate is required. Contact Aegean cargo services well in advance and confirm the full booking procedure, costs, and whether a pet transport agent is needed before relying on this option.

Option 2: Ferry + drive

For cat owners who want full cabin travel certainty, the ferry route is worth considering as part of the return: from Greece to Italy (several operators run the Patras–Ancona, Patras–Bari, and Patras–Venice routes, which accept pets in cabins), and from Italy overland to the UK via the Channel Tunnel (Eurotunnel allows cats in vehicles). This is substantially longer but avoids the return airline problem entirely for longer stays.

The key planning principle: book your return before you book your accommodation. The return options are more limited than the outbound, and if you wait to sort the return until after everything else is in place, you may find yourself with no good cabin options.

Designated travellers' points of entry

Greece has approved designated travellers' points of entry at its main international airports and ports. Your cat must enter the country through one of these points — an official vet checks the microchip, inspects the AHC, and verifies the vaccination record.

Confirmed entry points (verified from EC official list, June 2026):

Mainland:

• Athens Eleftherios Venizelos International Airport (ATH) ✅
• Thessaloniki Macedonia International Airport (SKG) ✅
• Piraeus port ✅
• Thessaloniki port ✅

Island airports and ports:

• Heraklion (HER, Crete) ✅ — airport and port
• Chania (CHQ, Crete) ✅
• Corfu (CFU) ✅ — airport and port
• Rhodes (RHO) ✅ — airport and port
• Kos (KGS) ✅ — airport and port
• Kalymnos ✅
• Mytilini/Lesbos ✅
• Mirina/Limnos ✅
• Chios ✅
• Samos ✅
• Ermoupolis/Syros ✅
• Argostoli port (Kefalonia) ✅

Santorini (JTR) is NOT on the approved entry list. If your final destination is Santorini, you cannot enter Greece directly there — you must arrive via an approved entry point (Athens recommended) and take a domestic connection or ferry onwards.

The inspection process is routine if your documents are in order. A vet on duty scans the microchip, checks it against the AHC, and verifies the vaccination dates. Arrive early enough to complete this process before your connecting transport.

Travelling to a Greek island

If your final destination is Crete, Rhodes, Corfu, or Kos — all have approved entry points, so you can fly directly and clear the border check there rather than routing via Athens. For Crete specifically, both Heraklion (HER) and Chania (CHQ) are approved.

If your destination is Santorini — which is NOT on the approved entry list — you must enter Greece via an approved airport first (Athens is the most practical) and then take a domestic connection or ferry.

For islands not on the approved list — including Santorini — enter via Athens (ATH) and connect domestically. Aegean Airlines and Olympic Air (their domestic subsidiary) allow cats in cabin on domestic Greek routes, with the same 8 kg limit and a lower fee of €35. Plan extra time at your entry airport for the border check before your domestic connection.

Domestic Greek ferry routes also allow pets, typically in pet-friendly cabins or designated areas — useful if you prefer to sail from Athens to a nearby island.

Returning to the UK from Greece

Returning to Great Britain requires an approved route and the right documents — it is not simply a microchip scan.

Your cat must travel on an APHA-approved route and have a functioning microchip, valid rabies vaccination, and an accepted pet travel document. In most ordinary return trips, the original AHC issued for the outbound journey can also be used for re-entry to Great Britain for up to six months, provided the rabies vaccination remains valid. A qualifying EU pet passport may also be used. Cats do not require tapeworm treatment. Carry the original documents and the required non-commercial ownership declaration.

No quarantine applies on return.

Practical planning for Greece with your cat

Summer heat

Greece in July and August is very hot — regularly above 35°C in peak summer. A cat in a carrier in a hot terminal or on a tarmac is at genuine risk of heat stress. Plan flights outside the heat of the day where possible (early morning departures tend to be cooler), ensure your carrier has excellent ventilation, and carry a small portable water bowl accessible through the carrier's mesh. Avoid direct sun exposure in layovers and at bus stops.

Hotel acceptance in Greece

Unlike Northern European hotels, which have increasingly standardised pet policies, many Greek hotels — particularly smaller family-run properties and island studios — have no formal policy and will accommodate cats on request. Email the property directly before booking; don't rely on general "pets allowed" filters on booking platforms, which often mean dogs only. Confirm they specifically mean cats.

Veterinary access

English-speaking vets are accessible in Athens and in the main tourist areas of popular islands. If your cat needs emergency care while in Greece, the Panhellenic Veterinary Association maintains a national directory. Keep your AHC with your cat's other documents throughout the trip — if a local vet needs to see proof of vaccination status, the AHC serves this purpose.

Frequently asked questions

Can I take my cat on holiday to Greece from the UK?
Yes — Greece is accessible to UK cat owners, but requires an Animal Health Certificate (AHC), ISO-compliant microchip, and valid rabies vaccination. The journey requires planning, particularly for the return leg, where cabin options are more limited than outbound.

Do I need an Animal Health Certificate (AHC) for Greece?
Yes. The AHC is mandatory for all UK-to-EU cat travel since January 2021. It must be issued by an Official Veterinarian within 10 days of your first EU entry. Your OV appointment can be booked months in advance — only the issue date needs to fall in the 10-day window.

Which airlines fly from the UK to Greece with cats in the cabin?
Aegean Airlines allows cats in cabin on London Heathrow → Athens (8 kg, €65, 55 × 40 × 23 cm carrier). Budget airlines (easyJet, Ryanair, Jet2, TUI) do not allow cabin pets. You can also fly via a European hub on KLM, Air France, or Lufthansa and connect to Athens — all three allow cats in cabin on UK-departing legs. Note that KLM and Air France have significantly smaller carrier size limits (46 × 28 × 24 cm) than Aegean.

Can my cat fly back from Greece to the UK in the cabin?
No — cabin travel into Great Britain on scheduled airlines is not available under current UK pet-entry rules. Aegean, KLM, and Air France all have UK inbound restrictions. Lufthansa's general cabin-pet policy does not override UK entry-route requirements; return by air requires manifest cargo arrangements on an APHA-approved route. See the return route section above for the full picture.

Is there quarantine for cats entering Greece from the UK?
No quarantine, provided your cat has the three required documents (AHC, microchip, rabies vaccination) in order.

Is my EU pet passport still valid for taking my cat to Greece?
No. GB-issued EU pet passports have been invalid for EU entry since January 2021. From April 2026, EU-issued passports held by GB residents are advised not to be used for travel from Great Britain into the EU — GOV.UK now states they may no longer be valid. The AHC is the required document.

What is the weight limit for cats on Aegean Airlines?
8 kg combined (cat and carrier together). Carrier maximum dimensions are 55 × 40 × 23 cm. Fee: €65 for international routes, €35 for domestic Greek routes. All confirmed from Aegean's official policy page, June 2026.

Can I take my cat to a Greek island?
Yes, and several popular island airports are approved entry points themselves: Heraklion and Chania (both Crete), Corfu, Rhodes, and Kos all have approved travellers' points of entry. For Santorini, which is not on the approved entry list, you must enter via Athens (ATH) first and take a domestic connection. Domestic Aegean/Olympic Air flights allow cats in cabin (8 kg, €35).

How far in advance should I book my cat's AHC appointment?
Book the OV appointment as soon as you have a rough travel date in mind — OV availability can be limited, particularly in rural areas and during busy travel periods. The appointment can be booked months ahead; you just need to confirm your exact travel date with enough notice for the OV to issue within the 10-day window.

What documentation does my cat need to return to the UK from Greece?
Your cat must travel on an APHA-approved route with a functioning microchip, valid rabies vaccination, and an accepted pet travel document — either the original AHC (valid for re-entry for up to six months from issue, provided the rabies vaccination remains valid) or a qualifying EU pet passport. You must also carry a non-commercial ownership declaration. Tapeworm treatment is not required for cats.

Before you book: the one step most readers delay

You now know the documentation sequence and the airline picture. The AHC timeline gives you structure — but the OV appointment is the thing that fixes the plan. Greece is very achievable for a UK cat owner; the constraints are the outbound airline (Aegean from Heathrow, or a hub via connection) and the return (which needs its own airline strategy).

Book your OV appointment via APHA's finder before you finalise your dates. Once that appointment is in your diary, the rest of the planning follows naturally. For more on the AHC process in full — including the timing, costs, and how to avoid the most common scheduling errors — see our complete Animal Health Certificate guide.

Related: Planning accommodation near the airport? See our guide to cat-friendly hotels near Athens Airport (ATH).